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  • 1.
    Morgan-Sagastume, Fernando
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik. Veolia Water Technologies AB.
    Valentino, Francesco
    Department of Chemistry, Sapienza University of Rome.
    Hjort, Markus
    Veolia Water Technologies AB.
    Zanaroli, Giulio
    Department of Civil, Chemical, Environmental and Materials Engineering (DICAM), University of Bologna.
    Majone, Mauro
    Department of Chemistry, Sapienza University of Rome.
    Werker, Alan G.
    Veolia Water Technologies AB .
    Acclimation Process for Enhancing Polyhydroxyalkanoate Accumulation in Activated-Sludge Biomass2019Ingår i: Waste and Biomass Valorization, ISSN 1877-2641, E-ISSN 1877-265X, Vol. 10, nr 4, s. 1065-1082Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A strategy was evaluated for conditioning activated sludge biomass to a new substrate whereby the polyhydroxyalkanoate (PHA) accumulation capacity of the biomass was enhanced based on a series of aerobic feast–famine acclimation cycles applied prior to PHA accumulation. Different biomass types enriched during the treatment of municipal wastewater at laboratory, pilot, and full scales were exposed to aerobic feast–famine acclimation cycles at different feast-to-famine ratios with an acetate–propionate mixture (laboratory scale), acetate (pilot scale), and fermented waste–sludge centrate (pilot scale). A sevenfold increase in specific PHA storage rates and 20% increase in substrate utilization rates were observed during acclimation cycles (laboratory acetate–propionate). Biomass acclimation led to more than doubling of the specific substrate utilization rates, PHA storage rates, biomass PHA contents, and specific PHA productivities (per initial biomass) during PHA accumulation. The biomass PHA contents were found to increase due to acclimation from 0.19 to 0.34 (laboratory acetate–propionate), 0.39 to 0.46 (pilot acetate) and 0.19 to 0.25 gPHA/gVSS (pilot centrate). A similar bacterial community structure during acclimation indicated that a physiological rather than a genotypic adaptation occurred in the biomass. The physiological state of the biomass at the start of PHA accumulation was deemed significant in the subsequent PHA-accumulation performance. Positive acclimation trends can be monitored by measuring the relative increase in feast substrate utilization or respiration rates with respect to those of the first acclimation cycle.

  • 2.
    Trublet, Mylene
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Kemiteknik.
    Scukins, Edvards
    Aeronautics, Department of Flight Data and Navigation, SAAB, Linköping, Sweden.
    Carabante, Ivan
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Rusanova-Naydenova, Daniela
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Kemiteknik.
    Competitive Sorption of Metal Ions on Titanium Phosphate Sorbent(TiP1) in Fixed-Bed Columns: A Closed-Mine Waters Study2019Ingår i: ACS Sustainable Chemistry & Engineering, ISSN 2168-0485, Vol. 7, nr 9, s. 8145-8154Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Sorptionfixed-bed column experiments were performed using atitanium phosphate ion-exchanger composed of−H2PO4units [TiO(OH)(H2PO4)·H2O]. Model mine water containingfive divalent metal ions (Cu2+,Zn2+,Mn2+,Ni2+,and Co2+) and a few closed-mine water samples were treated to evaluate the sorptionpreference of the material. For thefirst time, dynamic ion-exchange capacities(estimated to be between 3.2 and 4.2 mequiv g−1) and static ion-exchange uptakes(calculated to be between 3.1 and 3.5 mequiv g−1) were obtained for the same TiP1sorbent and data were discussed in terms of sorption behavior. It was found thatsorption processes on TiP1 in model and closed-mine waters during a columnexperiment could be accurately predicted from the corresponding batch experiment(including the sorbent’s capacities in different types of waters). A competitivesorption phenomenon in favor of Cu2+on TiP1 was established for all cases, pointingtoward the possibility of isolating pure copper concentrate from closed-mine waters.The relatively high amounts of calcium and magnesium ions present in mine waters did not appear to considerably affect theselectivity of TiP1 material. Exploratory experiments for sorbent regeneration and desorption using a low concentration of nitricacid were demonstrated.

  • 3.
    Kasiuliene, Alfreda
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Carabante, Ivan
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Bhattacharya, Prosun
    Department of Sustainable Development, Environmental Science and Engineering, Royal Institute of Technology, Stockholm.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Hydrothermal carbonisation of peat-based spent sorbents loaded with metal(loid)s2019Ingår i: Environmental science and pollution research international, ISSN 0944-1344, E-ISSN 1614-7499, Vol. 26, nr 23, s. 23730-23738Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Hydrothermal carbonisation (HTC) is a wet and relatively low-temperature process where, under autogenous pressures, biomass undergoes a chain of reactions leading to the defragmentation of organic matter. As well as its other uses (e.g. for producing low-cost carbon-based nano-compounds), HTC is utilised for the treatment of wet wastes, such as manure and biosludge. This study aimed to determine if hydrothermal carbonisation is a feasible treatment method for spent sorbents that are highly enriched with arsenic, chromium, copper, and zinc. The chemical properties of hydrochar and process liquid were evaluated after HTC treatment, where peat-based spent sorbents were carbonised at 230 °C for 3 h. Analysis of Fourier transform-infrared spectra revealed that during HTC, the oxygenated bonds of ethers, esters, and carboxylic groups were cleaved, and low-molecular-weight organic fragments were dissolved in the process liquid. A large fraction of arsenic (up to 62%), copper (up to 25%), and zinc (up to 36%) were transferred from the solids into the process water. Leaching of these elements from the hydrochars increased significantly in comparison with the spent sorbents.

  • 4.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Antelo, Juan
    Technological Research Institute, University of Santiago de Compostela, Spain.
    Brännvall, Evelina
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Carabante, Ivan
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Ek, Kristina
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Samhällsvetenskap.
    Komárek, Michael
    Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Czech Republic.
    Söderberg, Charlotta
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Samhällsvetenskap.
    Wårell, Linda
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Samhällsvetenskap.
    In situ chemical stabilization of trace element-contaminated soil: Field demonstrations and barriers to transition from laboratory to the field : A review2019Ingår i: Applied Geochemistry, ISSN 0883-2927, E-ISSN 1872-9134, Vol. 100, s. 335-351Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The chemical stabilization, or immobilization, of trace elements (metals and metalloids; TE) in contaminated soil has been studied for decades. A vast number of scientific publications are available on the method performance in laboratory settings, reporting that the application of various soil amendments to contaminated soil reduces TE mobility, bioavailability and toxicity. The most commonly used soil amendments include organic matter, iron oxides, phosphates, ashes, and lately biochar, alone or in combination with each other and/or lime. Most of the implemented field studies show a certain degree of improvement in soil and/or vegetation status following amendment. Regardless the positive performance of the technique in the laboratory, field validations and demonstrations remain scarce. The establishment of a field experiment often involves permits from authorities and agreements with site owners, both of which are considerably more time-consuming than laboratory tests. Due to conservative institutional structures, public authorities have been slow to adopt alternative remediation technologies, especially when the total TE concentration in soil remains the same and all of the associated risks are not yet convincingly described. For this reason, researchers should also focus on enhancing public knowledge of alternative remediation techniques so that future projects which aim to demonstrate the effectiveness of in situ immobilization techniques under natural conditions will be supported.

  • 5.
    Otsuki, Akira
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik. Ecole Nationale Supérieure de Géologie, GeoRessources UMR 7359 CNRS, University of Lorraine, Vandoeuvre-lès-Nancy, France.
    Gonçalves, Pedro Pereira
    Ecole Nationale Supérieure de Géologie, GeoRessources UMR 7359 CNRS, University of Lorraine, Vandoeuvre-lès-Nancy, France.
    Leroy, Emilien
    Ecole Nationale Supérieure de Géologie, GeoRessources UMR 7359 CNRS, University of Lorraine, Vandoeuvre-lès-Nancy, France.
    Selective Milling and Elemental Assay of Printed Circuit Board Particles for Their Recycling Purpose2019Ingår i: Metals, ISSN 2075-4701, Vol. 9, nr 8, artikel-id 899Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Selective/preferential milling of printed circuit board (PCB) particles followed by non-destructive characterization of the mill products was performed in order to understand the effects of different feed masses into a hammer mill and different milling time on the metal recovery and enrichment ratio. Those are important variables affecting and determining the process performance and capacity. The milling tests and elemental assay characterization were conducted by using a hammer mill and a portable X-ray fluorescence analysis (XRF), respectively. The results showed the preferential metal concentration/enrichment was achieved for several elements and their degree was varied depending on the parameters. Using the experimental data, predictive models of metal recovery were developed and the global trend of metal recoveries was observed under different mill feed and milling time and discussed.

  • 6.
    Kasiuliene, Alfreda
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Carabante, Ivan
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Bhattacharya, Prosun
    Department of Sustainable Development, Environmental Science and Engineering, Royal Institute of Technology, Stockholm.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Treatment of metal (loid) contaminated solutions using iron-peat as sorbent: is landfilling a suitable management option for the spent sorbent?2019Ingår i: Environmental science and pollution research international, ISSN 0944-1344, E-ISSN 1614-7499, Vol. 26, nr 21, s. 21425-21436Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This study firstly aimed to investigate the potential of simultaneous metal (loid) removal from metal (oid) solution through adsorption on iron-peat, where the sorbent was made from peat and Fe by-products. Up-flow columns filled with the prepared sorbent were used to treat water contaminated with As, Cu, Cr, and Zn. Peat effectively adsorbed Cr, Cu, and Zn, whereas approximately 50% of inlet As was detected in the eluent. Iron-sand was effective only for adsorbing As, but Cr, Cu, and Zn were poorly adsorbed. Only iron-peat showed the simultaneous removal of all tested metal (loid)s. Metal (loid) leaching from the spent sorbent at reducing conditions as means to assess the behaviour of the spent sorbent if landfilled was also evaluated. For this purpose, a standardised batch leaching test and leaching experiment at reducing conditions were conducted using the spent sorbent. It was found that oxidising conditions, which prevailed during the standardised batch leaching test, could have led to an underestimation of redox-sensitive As leaching. Substantially higher amounts of As were leached out from the spent sorbents at reducing atmosphere compared with oxidising one. Furthermore, reducing environment caused As(V) to be reduced into the more-toxic As (III).

  • 7.
    Marklund, Erik
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Treatment oriented waste characterization2019Licentiatavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [en]

    New types of materials and products are developed every day, and subsequently, new types of wastes. At the same time, new regulations are put forth to protect human health and the ecosystems from the negative impacts of wastes. Often, the waste management industry is responsible to deal with these problems, and hence, good knowledge about wastes and their treatment is crucial. Waste is normally characterized in order to determine a treatment; however, this usually implies a known treatment method.

    This thesis aims to provide a structured approach about how to describe different treatments, and to provide guidance on how to characterize wastes in a solution oriented manner. A distinction is made between two types of treatments: those based on separation processes and those based on transformation processes, as well as combinations of the two. Separation processes are common in mechanical treatment such as sieving or air-classification. Transformation processes are common in such treatments as shredding, electroporation, radiation treatment, and stabilization. Most treatments consist of both a transformation and a separation process, such as incineration, in which the organic carbon is oxidized (transformed) into CO2,that then is separated from the remaining solids. Other examples of combined processes are composting and anaerobic digestion.

    A framework is presented that enables a quantitative description of different waste treatments such as anaerobic digestion and incineration in the same context. All transformation processes take place in an environment that can be described by environmental factors such as temperature, pH, redox, radiation etc. By relating different treatments or observations to each other in an n-dimension matrix, it is possible to not only locate the currently known treatments, but also to locate unexplored areas, i.e. combinations of environmental factors that could be used to treat wastes in new ways.

    The addition of the n-dimensional framework to the general characterization model, together with the “top down” strategy for characterization provide valuable insights useful for dealing with new types of wastes in an efficient manner.

  • 8.
    Morgan-Sagastume, Fernando
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik. AnoxKaldnes – Veolia Water Technologies AB, Lund.
    Biofilm development, activity and the modification of carrier material surface properties in moving-bed biofilm reactors (MBBRs) for wastewater treatment2018Ingår i: Critical reviews in environmental science and technology, ISSN 1064-3389, E-ISSN 1547-6537, Vol. 48, nr 5, s. 439-470Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In the last decades, moving-bed biofilm reactors (MBBRs) have found a niche in the treatment of municipal and industrial wastewaters due to advantages of compactness, simplicity, stability and increased reaction rates. Recently, the material surface properties of MBBR carriers and their modification have been investigated, as reviewed herein, in order to enhance the control of microbial attachment and biofilm development, and MBBR performance by faster reactor startups or increased specific activity per surface area. Biofilm formation is a complex process influenced by the solid substratum surface properties and microbial composition and characteristics. MBBR carriers can be made to facilitate biofilm formation by modifying their physico-chemical surface characteristics using blended polymers, mixed materials, coatings and incorporating different chemical functional groups. The chemical modification of the substratum polymeric surface for biofilm treatment reactors has comprised plasma oxidation treatment, radiolysis in a gas phase, liquid-phase oxidative treatment and polymer grafting. This review focusses on carrier material surface properties, the modification of such properties and carrier material choices relevant to biofilm development and functionality of MBBRs, in order to identify opportunities and challenges in future biofilm carrier development.

  • 9.
    Vestin, Jenny
    et al.
    Swedish Geotechnical Institute (SGI), Sundsvall.
    Nordmark, Desiree
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Arm, Maria
    Swedish Geotechnical Institute (SGI), Linköping.
    Lind, Bo B.
    Swedish Geotechnical Institute (SGI), Göteborg.
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Biofuel ash in road stabilization: Lessons learned from six years of field testing2018Ingår i: Transportation Geotechnics, ISSN 2214-3912, Vol. 14, s. 146-156Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In 2009, pulp mill fly ash was used for stabilizing the road base of a low-volume gravel road. Six years after stabilization, a two-year monitoring program and a complementary study were conducted to study the environmental and technical properties of the road and road material. Environmental properties were studied through chemical analysis of road samples by X-ray diffraction (XRF), inductively coupled plasma (ICP) technique and colorimetric techniques. The strength development was studied by falling weight deflectometer (FWD) and compressive strength tests. Potassium (K) and sulphate sulfur (SO4-S) concentrations in road material decreased by 40 and 55%, respectively during this time. Absolute concentrations of most trace elements increased. Leaching of chloride (Cl) salts from road samples decreased with time, while leaching of magnesium (Mg) and calcium (Ca) increased. Leaching of trace elements was below 0.5 mg/kg at all sampling occasions. The bearing capacity increased by 30-50%, and the infiltration capacity decreased compared to a reference section. The results showed that the ash-stabilized sections performed better than conventionally upgraded sections and achieved increased bearing capacity over time. Since the acid neutralizing capacity of the stabilized layer was high and lumps of unreacted ash were still left in the road, it was concluded that the ash material could be utilized once more in a potential end-of-life road recycling.

  • 10.
    Vicenzi, Edward P
    et al.
    Museum Conservation Institute, Smithsonian Institution, Suitland, MD, USA; National Institute of Standards and Technology, Gaithersburg, MD USA.
    Pearce, Carolyn I
    Pacific Northwest National Laboratory, Richland, WA, USA.
    Weaver, Jamie L
    National Institute of Standards and Technology, Gaithersburg, MD USA.
    McCloy, John S
    School of Mechanical and Materials Engineering, Washington State University, Pullman, WA USA.
    Wight, Scott
    National Institute of Standards and Technology, Gaithersburg, MD USA.
    Lam, Thomas
    Museum Conservation Institute, Smithsonian Institution, Suitland, MD, USA.
    Whittaker, Scott
    National Museum of Natural History, Smithsonian Institution, Washington, DC, USA.
    Sjöblom, Rolf
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Peeler, David K
    Pacific Northwest National Laboratory, Richland, WA, USA.
    Schweiger, Michael J
    Pacific Northwest National Laboratory, Richland, WA, USA.
    Kruger, Albert A
    Department of Energy, Office of River Protection, Richland, WA USA.
    Compositional Imaging and Analysis of Late Iron Age Glass from the Broborg Vitrified Hillfort, Sweden2018Ingår i: Microscopy and Microanalysis, ISSN 1431-9276, E-ISSN 1435-8115, Vol. 24, nr S1, s. 2134-2135Artikel i tidskrift (Refereegranskat)
  • 11.
    Nordmark, Désirée
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Controlling the mobility of chromium and molybdenum in MSWI fly ash in a washing process2018Ingår i: Waste Management, ISSN 0956-053X, E-ISSN 1879-2456, Vol. 76, s. 727-733Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Fly ash from a cogeneration plant near Sundsvall in Sweden was treated in an ash-washing facility. The leaching of chromium (Cr) and molybdenum (Mo) from the ash residue exceeded the limit values for non-hazardous landfills. In this study factors that influence the leaching of Cr and Mo were identified and methods that can reduce the leaching were evaluated. The results revealed that the mobility of Cr and Mo are mainly controlled by pH and redox reactions and sequential extraction tests also showed that the fraction of highly soluble species of Cr and Mo increased after washing due to pH reactions in the ash during the process. Stabilization of the pH at ∼8 through carbonation of the washed ash and a lowering of the redox potential by adding ferrous iron to the process resulted in decreased leaching. Treatment with carbon dioxide yielded a decrease (from 10.7 to 8.2) in the pH and, hence, the leaching of Cr and Mo by 93 and 91%, respectively. And the addition of ferrous iron reduced the leaching of Cr by 50%. Carbonation of the ash can be achieved via treatment with flue gases from the power plant or treatment with landfill gas at the disposal site.

  • 12.
    Marklund, Erik
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Andreas, Lale
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser.
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Float-sink separation of construction and demolition waste fines2018Ingår i: Detritus, ISSN 2611-4135, Vol. 3, s. 13-18Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Landfilling and waste incineration are two major waste management options. However, due to their carbon content, some wastes may be unsuitable for these systems. Therefore, methods capable of removing organic carbon from wastes should be identified. One of these wastes is represented by construction and demolition fines. In this paper, we investigate the use of water in separating the waste by density, to verify the suitability of this method in the separation of carbon-containing materials, both in lab and field scale tests. The results obtained show that half of the carbon (measured as volatile solids) can be separated. However, this method fails to reliably produce a sink fraction suitable for landfilling, as it continues to be characterized by an excessively high organic material content.

  • 13.
    Weaver, Jamie L
    et al.
    National Institute of Standards and Technology, Gaithersburg, USA.
    Pearce, Carolyn I
    Pacific Northwest National Laboratory, Richland, USA.
    Arey, Bruce
    Pacific Northwest National Laboratory, Richland, USA.
    Conroy, Michele
    Pacific Northwest National Laboratory, Richland, USA.
    Vicenzi, Edward P
    Museum Conservation Institute, Smithsonian Institution, Suitland, USA .
    Sjöblom, Rolf
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Koestler, Robert
    Museum Conservation Institute, Smithsonian Institution, Suitland, USA.
    DePriest, Paula T
    Museum Conservation Institute, Smithsonian Institution, Suitland, USA .
    Lam, Thomas F
    Museum Conservation Institute, Smithsonian Institution, Suitland, USA .
    Peeler, David K
    Pacific Northwest National Laboratory, Richland, USA.
    McCloy, John S
    School of Mechanical and Materials Engineering, Washington State University, Pullman, USA.
    Kruger, Albert A
    Department of Energy, Office of River Protection, Richland, USA.
    Microscopic Identification of Micro-Organisms on Pre-Viking Swedish Hillfort Glass2018Ingår i: Microscopy and Microanalysis, ISSN 1431-9276, E-ISSN 1435-8115, Vol. 24, nr S1, s. 2136-2137Artikel i tidskrift (Refereegranskat)
  • 14.
    Weaver, Jamie L.
    et al.
    National Institute of Standards and Technology, Gaithersburg. Pacific Northwest National Laboratory, Richland.
    Pearce, Carolyn I.
    Pacific Northwest National Laboratory, Richland. National Institute of Standards and Technology.
    Sjöblom, Rolf
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    McCloy, John S.
    Pacific Northwest National Laboratory, Richland. School of Materials and Mechanical Engineering, Washington State University, USA.
    Miller, Micah
    Pacific Northwest National Laboratory, Richland.
    Varga, Tamas
    Pacific Northwest National Laboratory, Richland.
    Arey, Bruce W.
    Pacific Northwest National Laboratory, Richland.
    Conroy, Michele A.
    Pacific Northwest National Laboratory, Richland.
    Peeler, David K.
    Pacific Northwest National Laboratory, Richland.
    Koestler, Robert J.
    Museum Conservation Institute, Smithsonian Institution, USA.
    DePriest, Paula T.
    Museum Conservation Institute, Smithsonian Institution, USA.
    Vicenzi, Edward P.
    Museum Conservation Institute, Smithsonian Institution, USA.
    Hjarthner‐Holdar, Eva
    The Archaeologists, Geoarchaeological Laboratory, National Historical Museums (SHMM).
    Ogenhall, Erik
    The Archaeologists, Geoarchaeological Laboratory, National Historical Museums (SHMM).
    Kruger, Albert A.
    U.S. Department of Energy, Office of River Protection, Richland, USA.
    Pre‐Viking Swedish Hillfort Glass: A Prospective Long‐Term Alteration Analogue for Vitrified Nuclear Waste2018Ingår i: The International Journal of Applied Glass Science (IJAGS), E-ISSN 2041-1294, Vol. 9, nr 4, s. 540-554Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Models for long‐term glass alteration are required to satisfy performance predictions of vitrified nuclear waste in various disposal scenarios. Durability parameters are usually extracted from short‐term laboratory tests, and sometimes checked with long‐term natural experiments on glasses, termed analogues. In this paper, a unique potential ancient glass analogue from Sweden is discussed. The hillfort glass found at Broborg represents a unique case study as a vitrified waste glass analogue to compare to Low Activity Waste glass to be emplaced in near surface conditions at Hanford (Washington State). Glasses at Broborg have similar and dissimilar compositions to LAW glass, allowing the testing of long‐term alteration of different glass chemistries. Additionally, the environmental history of the site is reasonably well documented. Initial investigations on previously collected samples established methodologies for handling and characterizing these artifacts by laboratory methods while preserving their alteration layers and cultural context. Evidence of possible biologically influenced glass alteration, and differential alteration in the two types of glass found at the Broborg site is presented.

  • 15.
    Sjöblom, Rolf
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Reducing risk and uncertainty associated with nuclear waste processing and disposal: a Hanfort tank waste study2018Ingår i: Materials Research Society, 2018 Fall Meeting & Exhibit, ET15: Scientific basis for nuclear waste management: Perspectives on strategy, risk and uncertainty in radioactive waste management, Materials Research Society, 2018, Vol. ET15.01, artikel-id ET15.01.04Konferensbidrag (Refereegranskat)
    Abstract [en]

    Carolyn Pearce1 David Peeler1 Rolf Sjöblom2 Mark Triplett1 Kirk Cantrell1 Robert Moore1 MichaelSchweiger1 Vicky Freedman1 Matthew Fountain1 Sue Clark1 Albert Kruger3

    1, Pacific Northwest National Laboratory, Richland, Washington, United States2, Luleå University of Technology, Luleå, , Sweden3, U.S. Department of Energy—Office of River Protection, Richland, Washington,United States

    The Department of Energy’s Environmental Management cleanup effort is focusedon developing and implementing innovative and high impact technologies andsolutions that positively impact the overall mission lifecycle by: (1) reducing lifecyclecosts; (2) accelerating lifecycle schedules; (3) mitigating mission uncertainties,vulnerabilities, and risks; and (4) minimizing the mortgage associated with longterm,post-closure and post-completion stewardship. Pacific Northwest NationalLaboratory and its partnering institutions, are focused on reducing risk anduncertainty across the integrated flowsheet which includes safe waste storage,retrieval, pretreatment, immobilization, disposal, and tank closure. In thispresentation, an overview of the major Hanford flowsheet unit operations will beprovided and examples of specific projects focused on reducing risks anduncertainties will be explored.For example, a key issue of Hanford tank waste processing and disposal is that,although radionuclides (e.g., technetium) drive the disposal risk for the low-activityflowsheet, the presence of ‘benign’ elements (e.g., aluminum) dictate processinglimits or rates in both retrieval and pretreatment unit operations and have otherpotential downstream negative impacts. Thus, safe, cost-effective, and efficient wasteprocessing depends on a fundamental understanding of aluminum chemistry in highionic strength, highly alkaline solutions where water activity is low. Once the wastehas been retrieved, processed, and immobilized, controlling the behavior of riskdriving elements (e.g., Tc and/or I for low-activity waste) in the waste form and theenvironment becomes essential for waste form disposal or tank closure.With respect to low-activity waste form disposal, material solutions mustdemonstrate that the risk driving radioactive elements will be contained in a mannerwholly consistent with statutory requirements. Modelling future performanceremains a challenge for performance assessment (PA) formalism. An appealingoption is to perform an inverse PA (IPA) and look far into the past. Archeologicalartifacts, analogous to wasteform materials (i.e. glass and concrete) that have beenleft by our ancestors and exposed to the environment for thousands of years can beused to check for comprehensiveness as well as to validate and refine predictedwasteform durability. An IPA describes the features, events and processes that haveinfluenced the corrosion of a material over time and can help establish the mostlikely scenarios that should be included in PA for the future. An IPA for ancient glassfrom a hillfort at Broborg, Sweden (ca. 400-575 AD), used to fortify the fort wallswill also be one of the key focal points of this presentation.

  • 16.
    Kasiuliene, Alfroda
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Carabante, Ivan
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Bhattacharya, Prosun
    Department of Sustainable Development, Environmental Science and Engineering, Royal Institute of Technology.
    Carporale, A.G.
    Department of Agricultural Sciences, University of Naples Federico II.
    Adamo, P.
    Department of Agricultural Sciences, University of Naples Federico II.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Removal of metal(oid)s from contaminated water using iron-coated peat sorbent2018Ingår i: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 198, s. 290-296Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This study aimed at combining iron and peat to produce a sorbent suitable for a simultaneous removal of cations and anions from a solution. Peat powder, an industrial residue, was coated with iron by immersing peat into iron salt solutions. The adsorption efficiency of the newly produced sorbent towards As, Cr, Cu and Zn was tested by means of batch adsorption experiments at a constant pH value of 5. Coating of Fe on peat significantly increased the adsorption of As (from <5% to 80%) and Cr (from <3% to 25%) in comparison to uncoated peat. Removal of cations on coated peat slightly decreased (by 10–15%), yet remained within acceptable range. Electron Microscopy combined with X-Ray Energy Dispersive Spectroscopy revealed that iron coating on the peat was rather homogenous and As and Cr were abundantly adsorbed on the surface. By contrast, Cu and Zn displayed a sparing distribution on the surface of the iron coated peat. These results indicate that iron-peat simultaneously target sufficient amounts of both cations and anions and can be used for a one-step treatment of contaminated groundwater

  • 17.
    Quintela-Sabarís, Celestino
    et al.
    BIOGECO, INRA, Univ. Bordeaux.
    Marchand, Lilian
    BIOGECO, INRA, Univ. Bordeaux.
    Kidd, Petra S.
    Instituto de Investigaciones Agrobiológicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC), Santiago de Compostela .
    Friesl-Hanl, Wolfgang
    AIT Austrian Institute of Technology.
    Puschenreiter, Markus
    University of Natural Resources and Life Sciences Vienna .
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Müller, Ingo
    Saxon State Agency for Environment, Agriculture and Geology.
    Neu, Silke
    Saxon State Office for Environment, Agriculture and Geology.
    Janssen, Jolien
    Hasselt University, Centre for Environmental Sciences.
    Vangronsveld, Jaco
    Hasselt University, Centre for Environmental Sciences.
    Dimitriou, Ioannis
    Swedish University of Agriculture Sciences, Department of Crop Production Ecology.
    Siebielec, Grzegorz
    Institute of Soil Science and Plant Cultivation - State Research Institute.
    Gałązka, Rafał
    Institute of Soil Science and Plant Cultivation - State Research Institute.
    Bert, Valérie
    INERIS, Clean and Sustainable Technologies and Processes Unit, DRC/RISK, Parc Technologique Alata.
    Herzig, Rolf
    Phytotech Foundation (PT-F), and AGB-Bioindikation Umweltbeobachtung und oekologische Planung Quartiergasse, Bern.
    Cundy, Andrew B.
    Ocean and Earth Science, National Oceanography Centre (Southampton), University of Southampton.
    Oustrière, Nadège
    BIOGECO, INRA, Univ. Bordeaux.
    Kolbas, Aliaksandr
    BIOGECO, INRA, Univ. Bordeaux.
    Galland, William
    BIOGECO, INRA, Univ. Bordeaux.
    Mench, Michel
    BIOGECO, INRA, Univ. Bordeaux.
    Assessing phytotoxicity of trace element-contaminated soils phytomanaged with gentle remediation options at ten European field trials2017Ingår i: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 599-600, s. 1388-1398Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Gentle remediation options (GRO), i.e. in situ stabilisation, (aided) phytoextraction and (aided) phytostabilisation, were implemented at ten European sites contaminated with trace elements (TE) from various anthropogenic sources: mining, atmospheric fallout, landfill leachates, wood preservatives, dredged-sediments, and dumped wastes. To assess the performance of the GRO options, topsoil was collected from each field trial, potted, and cultivated with lettuce (Lactuca sativa L.) for 48 days. Shoot dry weight (DW) yield, photosynthesis efficiency and major element and TE concentrations in the soil pore water and lettuce shoots were measured.

    GRO implementation had a limited effect on TE concentrations in the soil pore water, although use of multivariate Co-inertia Analysis revealed a clear amelioration effect in phytomanaged soils. Phytomanagement increased shoot DW yield at all industrial and mine sites, whereas in agricultural soils improvements were produced in one out of five sites. Photosynthesis efficiency was less sensitive than changes in shoot biomass and did not discriminate changes in soil conditions.

    Based on lettuce shoot DW yield, compost amendment followed by phytoextraction yielded better results than phytostabilisation; moreover shoot ionome data proved that, depending on initial soil conditions, recurrent compost application may be required to maintain crop production with common shoot nutrient concentrations.

  • 18.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Giagnoni, Laura
    Department of Agrifood Production and Environmental Sciences, University of Florence.
    Marschner, Bernd
    Ruhr-Universität Bochum.
    Denys, Sébastien
    Joint Research Unit (UMR) Biodiversity, Genes & Communities (BIOGECO), French National Institute for Agricultural Research (INRA).
    Mench, Michel
    Agence Nationale de Sécurité Sanitaire (Anses).
    Andriaensen, Kristin
    i-CLEANTECH Vlaanderen.
    Vangronsveld, Jaco
    Hasselt University, Centre for Environmental Sciences.
    Puschenreiter, Markus
    University of Natural Resources and Life Sciences Vienna.
    Renella, Giancarlo
    Department of Agrifood Production and Environmental Sciences, University of Florence.
    Assessment of Methods for Determining Bioavailability of Trace Elements in Soils: A Review2017Ingår i: Pedosphere, ISSN 1002-0160, E-ISSN 2210-5107, Vol. 27, nr 3, s. 389-406Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Trace element-contaminated soils (TECSs) are one of the consequences of the past industrial development worldwide. Excessive exposure to trace elements (TEs) represents a permanent threat to ecosystems and humans worldwide owing to the capacity of metal(loid)s to cross the cell membranes of living organisms and of human epithelia, and their interference with cell metabolism. Quantification of TE bioavailability in soils is complicated due to the polyphasic and reactive nature of soil constituents. To unravel critical factors controlling soil TE bioavailability and to quantify the ecological toxicity of TECSs, TEs are pivotal for evaluating excessive exposure or deficiencies and controlling the ecological risks. While current knowledge on TE bioavailability and related cumulative consequences is growing, the lack of an integrated use of this concept still hinders its utilization for a more holistic view of ecosystem vulnerability and risks for human health. Bioavailability is not generally included in models for decision making in the appraisal of TECS remediation options. In this review we describe the methods for determining the TE bioavailability and technological developments, gaps in current knowledge, and research needed to better understand how TE bioavailability can be controlled by sustainable TECS management altering key chemical properties, which would allow policy decisions for environmental protection and risk management

  • 19.
    Marklund, Erik
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Andreas, Lale
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Float-sink separation of C&D waste: a case of treatment oriented waste characterization2017Ingår i: Sixteenth International Waste Management and Landfill Symposium: 2 -6 October 2017 S. Margherita di Pula, Cagliari, Italy, Italy, 2017Konferensbidrag (Refereegranskat)
    Abstract [en]

    Landfilling and waste incineration are two major waste management options. However, some wastes can,due to their carbon content,be unsuitable for neither of these systems. Therefore, there is aneed for methods to remove organic carbon from wastes. One of these wastesis the construction and demolition fines. In this paper, we investigate using water for separating the waste by density, to see if this is a suitable method for separating carbon-containingmaterials, both in lab and field scale tests. Results show that halfof the carbon (measured as volatile solids) can be separated. However, this method cannot be said to reliably produce a sink fraction that is suitable for landfilling, as it still contains too much organic materials.

  • 20.
    Bert, Valérie
    et al.
    INERIS, Clean and Sustainable Technologies and Processes Unit, DRC/RISK, Parc Technologique Alata.
    Neu, S.
    Technische Universität Dresden, Institute of Wood and Plant Chemistry.
    Zdanevitch, Isabelle
    NERIS, Clean and Sustainable Technologies and Processes Unit, DRC/RISK, Parc Technologique Alata.
    Friesl-Hanl, Wolfgang
    AIT Austrian Institute of Technology GmbH, Energy Department.
    Collet, Serge
    INERIS, Sources and Emissions Unit, DRC/CARA, Parc Technologique Alata.
    Gaucher, Rodolphe
    INERIS, Clean and Sustainable Technologies and Processes Unit, DRC/RISK, Parc Technologique Alata.
    Puschenreiter, Markus
    University of Natural Resources and Life Sciences Vienna – BOKU, Department of Forest and Soil Sciences.
    Müller, Ingo
    Saxon State Agency for Environment, Agriculture and Geology.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    How to manage plant biomass originated from phytotechnologies?: Gathering perceptions from end-users2017Ingår i: International journal of phytoremediation, ISSN 1522-6514, E-ISSN 1549-7879, Vol. 19, nr 10, s. 947-954Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A questionnaire survey was carried out in 4 European countries to gather end-user's perceptions of using plants from phytotechnologies in combustion and anaerobic digestion (AD). 9 actors of the wood energy sector from France, Germany and Sweden, and 11 AD platform operators from France, Germany and Austria were interviewed. Questions related to installation, input materials, performed analyses, phytostabilization and phytoextraction. Although the majority of respondents did not know phytotechnologies, results suggested that plant biomass from phytomanaged areas could be used in AD and combustion, under certain conditions. As a potential advantage, these plants would not compete with plants grown on agricultural lands, contaminated lands being not suitable for agriculture production. Main limitations would be related to additional controls in process' inputs and end-products and installations that might generate additional costs. In most cases, price of phytotechnologies biomass was mentioned as a driver to potentially use plants from metal-contaminated soils. Plants used in phytostabilisation or phytoexclusion were thought to be less risky and, consequently, benefited from a better theoretical acceptance than those issued from phytoextraction. Results were discussed according to national regulations. One issue related to the regulatory gap concerning the status of the plant biomass produced on contaminated land.

  • 21.
    Andreas, Lale
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Hydrotermisk karbonisering: en praktisk avfallsbehandlingsmöjlighet?2017Rapport (Övrig (populärvetenskap, debatt, mm))
    Abstract [sv]

    Hydrotermisk karbonisering (HTC) är en behandling där ett fuktigt organiskt materialutsätts för en kombination av värme och tryck, t ex 200°C och 20 bar. Då löses näringsämnenupp, och strukturen hos det organiska materialet förändras, vilket leder tillatt det stabiliseras, finfördelas, och enklare kan separeras från oorganiska delar.HTC har tidigare mest används vid bränsleproduktion, men i den här studien stod metodenspotential för avgiftning och separation av avfall i fokus, och vilken roll HTCkan ha som avfallsbehandlingsmetod. Syftet med projektet var att bedöma potentialenav HTC som metod för att öka återvinningen av näringsämnen i en cirkulär ekonomimed samtidigt förbättrad avgiftning av avfall jämfört med biologisk behandling, ochminskade utsläpp av koldioxid genom annan användning av organiska avfall än sombränsle.För att uppnå målen genomfördes labbförsök med efterföljande kemiska analyser, ochresultaten låg till grund för en multivariat dataanalys och en livscykelanalys.Resultaten visar på en avgiftning genom en separation av halten av skadliga tungmetaller,och att värmevärdet ökar. Dock så bedöms det analyserade materialet inte kunnaanvändas till jordförbättringsmedel eller som anläggningsmaterial, vilket dock främstberor på att materialet redan var förorenat.HTC lämpar sig bäst för blöta avfall med en blandning av organiska och oorganiskadelar. En marknadsanalys visar på att 100 000-tals ton av dessa typer av avfall fallervarje år.Sammanfattningsvis så kan processen vara intressant som avfallshanteringsmetod,men mer forskning behövs gällande mekaniska egenskaper och mekanisk separation.

  • 22.
    Pearce,, C.I
    et al.
    Pacific Northwest National Laboratory, Richland, WA, United States.
    Weaver, J.L
    National Institute of Standards and Technology, Gaithersburg, MD, United States.
    Vicenzi, E.P
    Museum Conservation Institute, Smithsonian Institution, Suitland, MD, United States.
    Lam, T
    Museum Conservation Institute, Smithsonian Institution, Suitland, MD, United States.
    Depriest, P.
    Museum Conservation Institute, Smithsonian Institution, Suitland, MD, United States.
    Koestler, R.
    Pacific Northwest National Laboratory, Richland, WA, United States.
    Varga, T
    Pacific Northwest National Laboratory, Richland, WA, United States.
    Miller, M.D.
    Pacific Northwest National Laboratory, Richland, WA, United States.
    Arey, B.W.
    Pacific Northwest National Laboratory, Richland, WA, United States.
    Conroy, M.A.
    Pacific Northwest National Laboratory, Richland, WA, United States.
    McCloy, J.S.
    School of Mechanical and Materials Engineering, Washington State University, Pullman, WA, United States.
    Sjöblom, Rolf
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Schweiger, M.J
    Pacific Northwest National Laboratory, Richland, WA, United States.
    Peeler, D.K.
    Pacific Northwest National Laboratory, Richland, WA, United States.
    Kruger, A.A
    Department of Energy, Office of River Protection, Richland, WA, United States.
    Investigating alteration of pre-viking hillfort glasses from the broborg Hillfort Site, Sweden2017Ingår i: Materials science & technology conference and exhibition 2017 (MS&T'17)., Association for Iron and Steel Technology, AISTECH , 2017, Vol. 2, s. 957-959Konferensbidrag (Refereegranskat)
  • 23.
    Pelkonen, Markku
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Wang, Yu
    School of Engineering, Aalto University, Espoo, Lahti Center, School of Science and Technology, Aalto University.
    Leachate direct-discharge limits and incentives related to landfill aftercare costs2017Ingår i: Journal of Material Cycles and Waste Management, ISSN 1438-4957, E-ISSN 1611-8227, Vol. 19, nr 1, s. 413-422Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Society needs sustainable methods for landfilling from an environmental perspective, but they have to be cost effective and affordable. Aftercare represents considerable costs within waste management system and costs can be expected to accrue over a long period of time showing the need to compare different management options. Direct-discharge limits for leachate COD and nitrogen are different in various (European) countries. When leachate COD or nitrogen has decreased at the latter part of the aftercare period, effluent limits 50 or 200 mg/l for COD and 10 or 70 mg/l for nitrogen have a considerable impact on period length. The objective of this paper is to discuss the effects of leachate discharge limits on landfill aftercare and leachate management costs in various conditions. Landfill simulator results and modelling are used to estimate leachate concentrations in three different scenarios. It is suggested that stricter discharge limits (shown before) impact on the costs of activated carbon filtration (1.4-fold) and biological treatment (1.1–1.24-fold). Stricter limits also extend the aftercare period length considerably, but with substantial water circulation the differences are clearly smaller. These results support the recent suggestion of aftercare incentives, and some details of applying these incentives in different conditions are discussed.

  • 24.
    Lidelöw, Sofia
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och -produktion.
    Macsik, Josef
    Ecoloop Stockholm.
    Carabante, Ivan
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Leaching behaviour of copper slag, construction and demolition waste and crushed rock used in a full-scale road construction2017Ingår i: Journal of Environmental Management, ISSN 0301-4797, E-ISSN 1095-8630, Vol. 204, nr 1, s. 695-703Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The leaching behaviour of a road construction with fayalitic copper slag, recycled concrete and crushed rock as sub-base materials was monitored over ten years. All studied materials used in the road construction, including crushed rock, contained concentrations of several elements exceeding the guideline values recommended by the Swedish EPA for total element concentrations for waste materials used in constructions. Despite that, leaching from the road construction under field conditions in general was relatively low. The leachates from the recycled materials contained higher concentrations of several constituents than the leachates from the reference section with crushed rock. The leaching of the elements of interest (Cr, Mo, Ni, Zn) reached peak concentrations during the second and fourth (Cu) years and decreased over the observation period to levels below the Swedish recommended values. Carbonation of the concrete aggregates caused a substantial but short-term increase in the leaching of oxyanions such as chromate. The environmental risks related to element leaching are highest at the beginning of the road life. Ageing of materials or pre-treatment through leaching is needed prior to their use in construction to avoid peak concentrations. Also, the design of road constructions should be adjusted so that recycled materials are covered with low-permeability covers, which would minimize the exposure to atmospheric precipitation and weathering.

  • 25.
    Touceda-Gonzalez, M.
    et al.
    Instituto de Investigaciones Agrobiologicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC).
    Prieto-Fernandez, A.
    Instituto de Investigaciones Agrobiologicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC).
    Renella, Giancarlo
    Department of Agrifood Production and Environmental Sciences, University of Florence.
    Giagnoni, Laura
    Department of Agrifood Production and Environmental Sciences, University of Florence.
    Sessitsch, A.
    AIT Austrian Institute of Technology GmbH, Center for Health & Bioresources.
    Brader, G.
    AIT Austrian Institute of Technology GmbH, Center for Health & Bioresources.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Dimitriou, Ioannis
    Swedish University of Agriculture Sciences, Department of Crop Production Ecology.
    Eriksson, J.
    Swedish University of Agriculture Sciences, Department of Soil and Environment.
    Friesl-Hanl, Wolfgang
    AIT Austrian Institute of Technology.
    Gałązka, Rafał
    Institute of Soil Science and Plant Cultivation - State Research Institute.
    Janssen, Jolien
    Hasselt University, Centre for Environmental Sciences.
    Mench, Michel
    Agence Nationale de Sécurité Sanitaire (Anses).
    Müller, Ingo
    Saxon State Agency for Environment, Agriculture and Geology.
    Neu, Silke
    Saxon State Office for Environment, Agriculture and Geology.
    Puschenreiter, Markus
    University of Natural Resources and Life Sciences Vienna.
    Siebielec, Grzegorz
    Institute of Soil Science and Plant Cultivation - State Research Institute.
    Vangronsveld, Jaco
    Hasselt University, Centre for Environmental Sciences.
    Kidd, Petra S.
    Instituto de Investigaciones Agrobiológicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC), Santiago de Compostela .
    Microbial community structure and activity in trace elementcontaminatedsoils phytomanaged by Gentle Remediation Options (GRO)2017Ingår i: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 231, nr 1, s. 237-251Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Gentle remediation options (GRO) are based on the combined use of plants, associated microorganisms and soil amendments, which can potentially restore soil functions and quality. We studied the effects of three GRO (aided-phytostabilisation, in situ stabilisation and phytoexclusion, and aided-phytoextraction) on the soil microbial biomass and respiration, the activities of hydrolase enzymes involved in the biogeochemical cycles of C, N, P, and S, and bacterial community structure of trace element contaminated soils (TECS) from six field trials across Europe. Community structure was studied using denaturing gradient gel electrophoresis (DGGE) fingerprinting of Bacteria, α- and β-Proteobacteria, Actinobacteria and Streptomycetaceae, and sequencing of DGGE bands characteristic of specific treatments. The number of copies of genes involved in ammonia oxidation and denitrification were determined by qPCR.

    Phytomanagement increased soil microbial biomass at three sites and respiration at the Biogeco site (France). Enzyme activities were consistently higher in treated soils compared to untreated soils at the Biogeco site. At this site, microbial biomass increased from 696 to 2352 mg ATP kg−1 soil, respiration increased from 7.4 to 40.1 mg C-CO2 kg−1 soil d−1, and enzyme activities were 2–11-fold higher in treated soils compared to untreated soil. Phytomanagement induced shifts in the bacterial community structure at both, the total community and functional group levels, and generally increased the number of copies of genes involved in the N cycle (nirK, nirS, nosZ, and amoA). The influence of the main soil physico-chemical properties and trace element availability were assessed and eventual site-specific effects elucidated. Overall, our results demonstrate that phytomanagement of TECS influences soil biological activity in the long term.

  • 26.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Nordmark, Désirée
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Carabante, Ivan
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Sužiedelytė-Visockienė, Jūratė
    Department of Geodesy and Cadastre, Vilnius Gediminas Technical University.
    Česlovas Aksamitauskas, Vladislovas
    Department of Geodesy and Cadastre, Vilnius Gediminas Technical University.
    Remediation of soil contaminated with organic and inorganic wood impregnation chemicals by soil washing2017Ingår i: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 184, s. 13-19Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim of this study was to evaluate the efficiency of a large scale washing/wet sieving technique for a soil contaminated with wood impregnation chemicals by 1) defining the final distribution of trace elements (As, Cu, Cr, Zn) and polycyclic aromatic hydrocarbons (PAH) in separated soil particle size fractions; and 2) defining the leaching behavior of the contaminants in these soil fractions. A soil washing experiment was implemented at waste management facility in Sweden using a full scale soil sorting and washing equipment. Five tons of soil was loaded to the equipment and wet-sieved into the following fractions: >16 mm, 8–16 mm, 2–8 mm, 0.2–2 mm, <0.2 mm and a fraction that floated on top of the slurry before the final separation phase, composed of organic matter (OM). Analysis of total concentrations of contaminants in all soil fractions indicated that wet sieving/soil washing was not efficient to reduce the total volume of soil that needs further treatment. Even the coarsest soil fractions (>8 mm) contained elevated concentrations of total As and PAH. Leaching of As from all washed soil fractions was so high, that none of the particle size fractions could be disposed of without additional treatment.

  • 27.
    Rousta, Kamran
    et al.
    Swedish Centre for Resource Recovery, University of Borås.
    Ordoñez, Isabel
    Division of Design & Human Factors, Chalmers University of Technology.
    Bolton, Kim
    Swedish Centre for Resource Recovery, University of Borås.
    Dahlén, Lisa
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Support for designing waste sorting systems: A mini review2017Ingår i: Waste Management & Research, ISSN 0734-242X, E-ISSN 1096-3669, Vol. 35, nr 11, s. 1099-1111Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This article presents a mini review of research aimed at understanding material recovery from municipal solid waste. It focuses on two areas, waste sorting behaviour and collection systems, so that research on the link between these areas could be identified and evaluated. The main results presented and the methods used in the articles are categorised and appraised. The mini review reveals that most of the work that offered design guidelines for waste management systems was based on optimising technical aspects only. In contrast, most of the work that focused on user involvement did not consider developing the technical aspects of the system, but was limited to studies of user behaviour. The only clear consensus among the articles that link user involvement with the technical system is that convenient waste collection infrastructure is crucial for supporting source separation. This mini review reveals that even though the connection between sorting behaviour and technical infrastructure has been explored and described in some articles, there is still a gap when using this knowledge to design waste sorting systems. Future research in this field would benefit from being multidisciplinary and from using complementary methods, so that holistic solutions for material recirculation can be identified. It would be beneficial to actively involve users when developing sorting infrastructures, to be sure to provide a waste management system that will be properly used by them.

  • 28.
    Tian, Shuangshuang
    et al.
    College of Resources and Environment, Huazhong Agricultural University, Wuhan.
    Tan, Zhongxin
    College of Resources and Environment, Huazhong Agricultural University, Wuhan.
    Kasiuliene, Alfreda
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Ai, Ping
    College of Engineering, Huazhong Agricultural University, Wuhan.
    Transformation mechanism of nutrient elements in the process of biochar preparation for returning biochar to soil2017Ingår i: Chinese Journal of Chemical Engineering, ISSN 1004-9541, E-ISSN 2210-321X, Vol. 25, nr 4, s. 477-486Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Returning biochar to soil is a heavily researched topic because biochar functions well for soil improvement. There is a significant loss of nutrients, which occurs during biochar preparation before biochar is returned to soil, thereby seriously undermining biochar's efficacy. Therefore, the transformation mechanisms of biochar pH, mass, nutrients and metals during pyrolysis under different atmospheres and temperatures were studied such that the best method for biochar preparation could be developed. Several conclusions can be reached: (1) a CO2 atmosphere is better than a N2 atmosphere for biochar preparation, although preparation in a CO2 atmosphere is not a common practice for biochar producers; (2) 350 °C is the best temperature for biochar preparation because the amount of nutrient loss is notably low based on the premise of straw transferred into biochar; and (3) transforming mechanisms of pH, N, P and K are also involved in the biochar preparation process.

  • 29.
    Rousta, Kamran
    et al.
    Swedish Centre for Resource Recovery, University of Borås, Högskolan i Borås.
    Bolton, Kim
    Physics Department, Göteborg University, Swedish Centre for Resource Recovery, University of Borås.
    Dahlén, Lisa
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    A Procedure to Transform Recycling Behavior for Source Separation of Household Waste2016Ingår i: Recycling, ISSN 2313-4321, Vol. 1, nr 1, s. 147-165Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Household waste separation at the source is a central part of waste management systems in Sweden. Resource recovery of materials and energy increased substantially after separate collection was implemented in the 1990s. A procedure to transform recycling behavior for the sorting of household waste—called the recycling behavior transition (RBT) procedure—was designed and implemented in a waste management system in Sweden. Repeated use of this procedure, which will assist in the continual improvement of household sorting, consists of the following four consecutive steps: (i) evaluating the current sorting behavior; (ii) identifying appropriate interventions; (iii) implementing the interventions, and; (iv) assessing the quantitative effect of the interventions. This procedure follows action research methodology and it is the first time that such a procedure has been developed and implemented for the sorting of household waste. The procedure can easily be adapted to any source separation system (which may have different local situations) and, by improving the source separation, will increase the resource recovery in the waste management system. The RBT procedure, together with its strengths and weaknesses, is discussed in this paper, and its implementation is exemplified by a pilot study done in Sweden.

  • 30.
    Morgan-Sagastume, Fernando
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Characterisation of open, mixed microbial cultures for polyhydroxyalkanoate (PHA) production2016Ingår i: Reviews in Environmental Science and Biotechnology, ISSN 1569-1705, E-ISSN 1572-9826, Vol. 15, nr 4, s. 593-625Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Viable processes have emerged for the production of polyhydroxyalkanoates (PHAs) via open, mixed microbial cultures (MMC). MMC PHA production is increasingly integrated into process technologies for the biological management of organic waste residuals and wastewaters. Herein, the literature has been systematically and comprehensively reviewed in order to establish the current knowledge about the characterisation of microbial communities engineered for PHA production. Despite the numerous descriptions of the microbial structure of PHA-storing MMC, the microorganisms actively storing PHAs are rarely identified. The microbial community structure and population dynamics in both the biomass enrichment and the PHA accumulation process have not been equally analysed. PHA-storing bacteria have been identified predominantly within the classes of Alphaproteobacteria, Betaproteobacteria and Gammaproteobacteria. Molecular techniques and microscopy have been preferentially used to characterise microbial diversity, abundance and activity in PHA-storing MMC. Fluorescence in situ hybridization remains relevant for the spatial identification and quantification of PHA-storing bacteria, and in tandem with Nile blue A staining helps identify actively PHA-storing bacteria. 16S rRNA-based fingerprinting is useful for describing dynamics in microbial community structure rather than diversity, and new generation sequencing provides a high-throughput characterisation of microbial diversity, dynamics and relative abundance. The dominant bacteria and their dynamics in bioreactors enriching for MMC with PHA-storage capacity and actively accumulating PHA are further covered with respect to the operating conditions used to select microbial communities for the PHA-storage phenotype. The specification of the PHA-storage phenotype and metabolic activity in identified bacteria remains a challenge in the study of PHA-storing MMC.

  • 31.
    Kasiuliene, Alfreda
    et al.
    Aleksandras Stulginskis University, Institute of Environment and Ecology, Kaunas.
    Paulauskas, Valdas A.
    Aleksandras Stulginskis University, Institute of Environment and Ecology, Kaunas.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Chelant-Assisted Accumulation of Cd, Cu, and Zn in Rapeseed (Brassica napus L.) Biomass as a Renewable Energy Feedstock2016Ingår i: Polish Journal of Environmental Studies, ISSN 1230-1485, E-ISSN 2083-5906, Vol. 25, nr 5, s. 1985-1993Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This article discusses the environmental concerns regarding soil contamination by heavy metals and the possibility of growing a high biomass-yielding crop (i.e., rapeseed) as a tool of phytoremediation. The aim of our research was to investigate the growth parameters and the capacity of rapeseed to accumulate Cd, Cu, and Zn from the contaminated soil and to investigate the effects of the chelants (EDTA, EDDS) as potential heavy metal mobility-enhancing agents. A pot experiment was performed under greenhouse conditions where rapeseed was grown on heavy metal-contaminated soil taken from former septic drain fields. Chelants were applied twice using doses of 3 mmol kg(-1) of wet soil weight. Plants from contaminated soil produced more biomass and heavier seeds. The highest Cd concentrations were detected in rapeseed stems and leaves: Cu in roots and Zn in seeds and stems with leaves. Rapeseed in some cases exhibited translocation factor values for single plant parts greater than unity, whereas the bioconcentration factor was always below unity. Detected concentrations of Cd, Cu, and Zn in the biomass indicate that rapeseed may be considered an excluder rather than accumulator. Chelant application did not provide the expected enhancing effect on heavy metal uptake by rapeseed.

  • 32.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Niero, L.
    Contaminated soil for landfill covers: Risk mitigation by arsenic immobilization2016Ingår i: Arsenic Research and Global Sustainability: Proceedings of the 6th International Congress on Arsenic in the Environment, AS 2016 / [ed] Bhattacharya, Prosun; Vahter, Marie; Jarsjo, Jerker; Kumpiene, Jurate; Charlotte, Sparrenbom, London: CRC Press, 2016, s. 579-580Konferensbidrag (Refereegranskat)
    Abstract [en]

    The aim of the study was to evaluate the risks of arsenic (As) spreading from soil that was used in a landfill cover. The As-contaminated soil was treated with iron, and a combination of iron and peat and placed in a pilot-scale landfill cover. The main exposure pathways concerning risks to human health and the environment were studied by analysing dissolved As in soil pore water, As phytotoxicity and bioaccessibility. The results showed that the stabilization of As-contaminated soil with a combination of Fe0and peat signifi-cantly reduced the As concentration in soil pore water, uptake by plants and improved the main morphological parameters of plants. The soil treatment also reduced the bioaccessibility As indicating the reduced risks to human health. Using Fe0amendment alone, the positive impact on the measured indicators was considerably smaller or not significant

  • 33.
    Bhattacharya, Prosun
    et al.
    KTH-International Groundwater Arsenic Research Group, Department of Sustainable Development, Environmental Sciences and Engineering, KTH Royal Institute of Technology.
    Vahter, Marie E.
    Institute of Environmental Medicine, Karolinska Institutet.
    Jaresjö, Jerker
    Department of Physical Geography and Quaternary Geology, Stockholm University.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Ahmad, Arslan
    KWR Watercycle Research Institute, Nieuwegein.
    Sparrenbom, Charlotta Jönsson
    Department Geology, Quaternary Sciences, Lund University.
    Jacks, Gunnar
    KTH-International Groundwater Arsenic Research Group, Department of Sustainable Development, Environmental Sciences and Engineering, KTH Royal Institute of Technology.
    Donselaar, Marinus Eric
    Department of Geoscience and Engineering, Delft Univ. of Technology.
    Bundschuh, Jochen
    KTH-International Groundwater Arsenic Research Group, Department of Sustainable Development, Environmental Sciences and Engineering, KTH Royal Institute of Technology.
    Naidu, Ravi
    Global Centre for Environmental Remediation (GCER), Faculty of Science & Information Technology, The University of Newcastle.
    Editors’ foreword2016Ingår i: Arsenic Research and Global Sustainability: Proceedings of the 6th International Congress on Arsenic in the Environment, AS 2016 / [ed] Bhattacharya, Prosun; Vahter, Marie; Jarsjo, Jerker; Kumpiene, Jurate; Charlotte, Sparrenbom, London: CRC Press, 2016, s. xlv-xlviKonferensbidrag (Refereegranskat)
  • 34.
    Nilsson, Mirja
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Andreas, Lale
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Effect of accelerated carbonation and zero valent iron on metal leaching from bottom ash2016Ingår i: Waste Management, ISSN 0956-053X, E-ISSN 1879-2456, Vol. 51, s. 97-104Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    About 85% of the ashes produced in Sweden originated from the incineration of municipal solid waste and biofuel. The rest comes from the thermal treatment of recycled wood, peat, charcoal and others. About 68% of all ashes annually produced in Sweden are used for constructions on landfills, mainly slopes, roads and embankments, and only 3% for construction of roads and working surfaces outside the landfills (SCB, 2013). Since waste bottom ash (BA) often has similar properties to crushed bedrock or gravel, it could be used for road constructions to a larger extent. However, the leaching of e.g. Cr, Cu, Mo, Pb and Zn can cause a threat to the surrounding environment if the material is used as it is. Carbonation is a commonly used pre-treatment method, yet it is not always sufficient.As leaching from aged ash is often controlled by adsorption to iron oxides, increasing the number of Fe oxide sorption sites can be a way to control the leaching of several critical elements. The importance of iron oxides as sorption sites for metals is known from both mineralogical studies of bottom ash and from the remediation of contaminated soil, where iron is used as an amendment.In this study, zero valent iron (Fe(0)) was added prior to accelerated carbonation in order to increase the number of adsorption sites for metals and thereby reduce leaching. Batch, column and pHstat leaching tests were performed and the leaching behaviour was evaluated with multivariate data analysis. It showed that leaching changed distinctly after the tested treatments, in particular after the combined treatment.Especially, the leaching of Cr and Cu clearly decreased as a result of accelerated carbonation. The combination of accelerated carbonation with Fe(0) addition reduced the leaching of Cr and Cu even further and reduced also the leaching of Mo, Zn, Pb and Cd compared to untreated BA. Compared with only accelerated carbonation, the Fe(0) addition significantly reduced the leaching of Cr, Cu and Mo. The effects of Fe(0) addition can be related to binding of the studied elements to newly formed iron oxides. The effects of Fe(0) addition were often more distinct at pH values between 7 and 9, which indicates that a single treatment with only Fe addition would be less effective and a combined treatment is recommended. The pHstat results showed that accelerated carbonation in combination with Fe(0)0 addition widens the pH range for low solubility of about one unit for several of the studied elements. This indicates that pre-treating the bottom ash with a combination of accelerated carbonation and Fe(0) addition makes the leaching properties of the ash less sensitive to pH changes that may occur during reuse. All in all, the addition of Fe0 in combination with carbonation could be an effective pre-treatment method for decreasing the mobility of potentially harmful components in bottom ash.

  • 35.
    Carlsson, My
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik. Veolia Water Technologies AB (AnoxKaldnes), Lund, Sweden.
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Morgan-Sagastume, Fernando
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik. Veolia Water Technologies AB (AnoxKaldnes), Lund, Sweden.
    Energy balance performance of municipal wastewater treatment systems considering sludge anaerobic biodegradability and biogas utilisation routes2016Ingår i: Journal of Environmental Chemical Engineering, ISSN 2160-6544, E-ISSN 2213-3437, Vol. 4, nr 4, s. 4680-4689Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The energy balance of a municipal wastewater treatment (WWT) system was evaluated considering the influence of excess biological sludge anaerobic biodegradability (BDAn) and of biogas utilisation as either fuel for co-generation of heat and power (CHP) or for vehicle transport. Sludge thermal pre-treatment prior to anaerobic digestion and high-rate carbon removal were considered as modifications of a reference municipal WWT system to impact the sludge BDAn. Both thermal pre-treatment and a high-rate process with a short sludge retention time (SRT = 1-3d) led to ∼30% higher sludge BDAn than that of untreated sludge from a low-rate WWT system with long SRT ( > 8d), which enhanced methane yields and energy production correspondingly. An efficient separation (40% of CODin) of primary solids promoted biogas production by capturing a significant part of the incoming COD, and lowered aeration energy demands for carbon oxidation due to lower loads of particulate organics into the biological treatment. Thermal pre-treatment can most effectively increase the biodegradability of sludge originating from a low-rate WWT system with a long SRT. Sludge solubilization alone as an indicator of increase biodegradability by a pre-treatment is inadequate for sludge types with inherently high biodegradability. A WWT system with primary separation, sludge pre-treatment, and CHP from biogas can be a net electricity producer and self-sufficient in thermal energy, provided the thermal energy from CHP is available for the pre-treatment. With other types of energy carriers as inputs and outputs, the WWT performance also needs evaluation with respect to the energy economic and environmental value. 

  • 36.
    Brännvall, Evelina
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Fly ash in landfill top covers: a review2016Ingår i: Environmental Science: Processes & Impacts, ISSN 2050-7887, E-ISSN 2050-7895, Vol. 18, nr 1, s. 11-21Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Increase of energy recovery from municipal solid waste by incineration results in the increased amounts of incineration residues, such as fly ash, that have to be taken care of. Material properties should define whether fly ash is a waste or a viable resource to be used for various applications. Here, two areas of potential fly ash application are reviewed: the use of fly ash in a landfill top cover either as a liner material or as a soil amendment in vegetation layer. Fly ashes from incineration of three types of fuel are considered: refuse derived fuel (RDF), municipal solid waste incineration (MSWI) and biofuel. Based on the observations, RDF and MSWI fly ash is considered as suitable materials to be used in a landfill top cover liner. Whereas MSWI and biofuel fly ashes based on element availability for plant studies, could be considered suitable for the vegetation layer of the top cover. Responsible application of MSWI ashes is, however, warranted in order to avoid element accumulation in soil and elevation of background values over time.

  • 37.
    Tiberg, Charlotta
    et al.
    Statens Geotekniska Institut, Department of Soil and Environment, Swedish University of Agricultural Sciences.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Gustafsson, Jon Petter
    Department of Land and Water Resources Engineering, Royal Institute of Technology, Department of Soil and Environment, Swedish University of Agricultural Sciences.
    Marsz, Aleksandra
    Department of Soil and Environment, Swedish University of Agricultural Sciences.
    Persson, Ingmar
    Department of Chemistry, Swedish University of Agricultural Sciences.
    Mench, Michel
    Bordeaux University, UMR BIOGECO INRA 1202, Ecology of Communities, Bordeaux 1 University.
    Kleja, Dan B.
    Swedish Geotechnical Institute, Department of Soil and Environment, Swedish University of Agricultural Sciences.
    Immobilization of Cu and As in two contaminated soils with zero-valent iron: Long-term performance and mechanisms2016Ingår i: Applied Geochemistry, ISSN 0883-2927, E-ISSN 1872-9134, Vol. 67, s. 144-152Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Immobilization of trace elements in contaminated soils by zero-valent iron (ZVI) is a promising remediation method, but questions about its long-term performance remain unanswered. To quantify immobilization and predict possible contaminant remobilization on long timescales detailed knowledge about immobilization mechanisms is needed. This study aimed at assessing the long-term effect of ZVI amendments on dissolved copper and arsenic in contaminated soils, at exploring the immobilization mechanism(s), and at setting up a geochemical model able to estimate dissolved copper and arsenic under different scenarios. Samples from untreated and ZVI-treated plots in two field experiments where ZVI had been added 6 and 15 years ago were investigated by a combination of batch experiments, geochemical modeling and extended X-ray absorption fine structure (EXAFS) spectroscopy. Dissolved copper and arsenic concentrations were described by a multisurface geochemical model with surface complexation reactions, verified by EXAFS. The ZVI remained “reactive” after 6-15 years, i.e. the dissolved concentrations of copper and arsenic were lower in the ZVI-treated than in the untreated soils. There was a shift in copper speciation from organic matter complexes in the untreated soil to surface complexes with iron (hydr)oxides in the ZVI-treated soil. The pH value was important for copper immobilization and ZVI did not have a stabilizing effect if pH was lower than about 6. Immobilization of arsenic was slightly pH-dependent and sensitive to the competition with phosphate. If phosphate was ignored in the modeling, the dissolution of arsenate was greatly underestimated

  • 38.
    Kasiuliene, Alfreda
    et al.
    Aleksandras Stulginskis University, Institute of Environment and Ecology, Kaunas.
    Paulauskas, Valdas A.
    Aleksandras Stulginskis University, Institute of Environment and Ecology, Kaunas.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Influence of nitrogen fertilizer on Cd and Zn accumulation in rapeseed (Brassica napus L.) biomass2016Ingår i: Media History Monographs, ISSN 1406-894X, E-ISSN 2228-4907, Vol. 14, nr 2, s. 418-427Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Diffuse soil contamination with heavy metals and Cd in particular is a matter of serious concern. Application of conventional remediation methods usually is not feasible due to the large territories and relatively low heavy metal content. Thus, phytoremediation is seen as an alternative. Rapeseed was grown on Cd and Zn contaminated as well as clean soil under the greenhouse conditions. Solid and liquid nitrogen fertilizers were applied during the pot experiment in order to test their influence on heavy metal accumulation in plant tissues. Vegetative parameters were measured four times during the pot experiment and it was concluded, that the elevated concentrations of Cd and Zn in the soil did not disrupt the development of rapeseed plants. Furthermore, plants from contaminated soil produced significantly bigger seeds in comparison to plants from uncontaminated soil. Calculated Bioconcentration factors for rapeseed grown on Cd and Zn contaminated soil in all cases were below unity, thus possibility to use this plant species for phytoextraction purposes is limited, but it can be successfully grown on contaminated land as an energy crop. Application of nitrogen fertilizers had a significant effect on heavy metal accumulation and decreased Cd and Zn concentrations in rapeseed roots and stems with leaves were recorded. Accumulation differences between the liquid and solid fertilizer applications were negligible.

  • 39.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Nordmark, Desiree
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Hamberg, Roger
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Carabante, Ivan
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Simanavičienė, Rūta
    Department of Mathematical Modelling, Vilnius Gediminas Technical University.
    Česlovas Aksamitauskas, Vladislovas
    Department of Geodesy and Cadastre, Vilnius Gediminas Technical University.
    Leaching of arsenic, copper and chromium from thermally treated soil2016Ingår i: Journal of Environmental Management, ISSN 0301-4797, E-ISSN 1095-8630, Vol. 183, nr 3, s. 460-466Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Thermal treatment, if properly performed, is an effective way of destroying organic compounds in contaminated soil, while impact on co-present inorganic contaminants varies depending on the element. Leaching of trace elements in thermally treated soil can be altered by co-combusting different types of materials. This study aimed at assessing changes in mobility of As, Cr and Cu in thermally treated soil as affected by addition of industrial by-products prior to soil combustion. Contaminated soil was mixed with either waste of gypsum boards, a steel processing residue (Fe3O4), fly ash from wood and coal combustion or a steel abrasive (96.5% Fe0). The mixes and unamended soil were thermally treated at 800 °C and divided into a fine fraction <0.125 mm and a coarse fraction >0.125 mm to simulate particle separation occurring in thermal treatment plants. The impact of the treatment on element behaviour was assessed by a batch leaching test, X-ray absorption spectroscopy and dispersive X-ray spectrometry. The results suggest that thermal treatment is highly unfavourable for As contaminated soils as it increased both the As leaching in the fine particle size fraction and the mass of the fines (up to 92%). Soil amendment with Fe-containing compounds prior to the thermal treatment reduced As leaching to the levels acceptable for hazardous waste landfills, but only in the coarse fraction, which does not justify the usefulness of such treatment. Among the amendments used, gypsum most effectively reduced leaching of Cr and Cu in thermally treated soil and could be recommended for soils that do not contain As. Fly ash was the least effective amendment as it increased leaching of both Cr and As in majority of samples.

  • 40.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Brännvall, Evelina
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Wolters, Martin
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Skoglund, Nils
    Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Energivetenskap.
    Cirba, Stasys
    Department of Mathematical Modelling, Vilnius Gediminas Technical University.
    Aksamitauskas, Vladislovas Ceslovas
    Department of Geodesy and Cadastre, Vilnius Gediminas Technical University.
    Phosphorus and cadmium availability in soil fertilized with biosolids and ashes2016Ingår i: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 151, s. 124-132Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The recycling of hygienized municipal sewage sludge (biosolids) to soil as the source of phosphorus (P) is generally encouraged. The use of biosolids, however, has some concerns, such as the presence of elevated concentrations of potentially toxic trace elements, and the possible presence of pathogens, hormones and antibiotics. Organic substances are destroyed during combustion whereas trace elements could partly be separated from P in different ash fractions. Biomass combustion waste (ash) can instead be considered as an alternative P source. This study evaluates and compares the impact of biosolids and their combustion residues (ashes), when used as fertilizers, on P and Cd solubility in soil, plant growth and plant uptake of these elements. Biosolids were also amended with K and Ca to improve the composition and properties of P in ashes, and incinerated at either 800 °C or 950 °C. Combustion of biosolids improved the Cd/P ratio in ashes by 2-5 times, compared with the initial biosolids. The low Cd content in ashes (4-9 mg Cd (kg P)-1) makes this material a particularly attractive alternative to mineral fertilizers. Significantly higher pore water P (as well as total N) was measured in soils containing biosolids, but plants produced a higher biomass in soil fertilized with ashes. The K and Ca amendments prior to biosolids combustion generally decreased the total Cd in ash, but had little effect on P and Cd uptake and biomass growth. Similarly, the combustion temperature had negligible effect on these factors as well

  • 41.
    Sjöblom, Rolf
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Zietek, A.
    Jönköping Energi AB.
    Gaude, E.
    Miljöhantering i Jönköping AB.
    Fagerqvist, J.
    Avfall Sverige - Swedish Waste Management and Recycling Association, Malmö.
    Karlfeldt Fejde, K.
    Water Environment Technology, Chalmers University of Technology.
    Stabilization Of Lead In Incineration Fly Ash By Ageing And Carbonatation In Contact With Moisture And Air2016Ingår i: International Journal of Sustainable Development and Planning, ISSN 1743-7601, E-ISSN 1743-761X, Vol. 11, nr 5, s. 683-693Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Residues from incineration of waste vary considerably in quality not only depending on the compositionof the waste and the incineration system, but also on the extent and duration of contact withmoisture and carbon dioxide in the atmosphere. Lead has a rather varying abundance and an even morevarying availability in ash as determined by leach tests. Fresh fly ash from Jönköping Energi AB hasa relatively low content of lead in comparison with other similar ashes but a somewhat high leach ratein relation to the total amount. Thus, in determining the pertinent destinations for this ash, it is appropriateto assess the availability after prolonged contact with moisture and air. It was found that theleaching decreased by up to around three orders of magnitude after such conditioning, which will whattake place in a landfill over time. The effect was confirmed by pilot tests. The paper also describes theash chemistry and possible mechanisms for the stabilization. It is concluded that the stabilization canfacilitate landfilling

  • 42.
    Sjöblom, Rolf
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Weaver, Jamie L.
    Department of Chemistry, Washington State University, Pullman, WA.
    Peeler, David K.
    Pacific Northwest National Laboratory, Richland, WA.
    McCloy, John S.
    Pacific Northwest National Laboratory, Richland, WA.
    Kruger, Albert A.
    Department of Energy, Office of River Protection, Richland, WA.
    Ogenhall, E.
    The Archaeologists, Geoarchaeological Laboratory, National Historical Museums (SHMM), Uppsala.
    Hjärtner-Holdar, Eva
    The Archaeologists, Geoarchaeological Laboratory, National Historical Museums (SHMM), Uppsala.
    Vitrified hillforts as anthropogenic analogues for nuclear waste glasses: project planning and initiation2016Ingår i: International Journal of Sustainable Development and Planning, ISSN 1743-7601, E-ISSN 1743-761X, Vol. 11, nr 6, s. 897-906Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Nuclear waste must be deposited in such a manner that it does not cause significant impact on theenvironment or human health. In some cases, the integrity of the repositories will need to sustain fortens to hundreds of thousands of years. In order to ensure such containment, nuclear waste is frequentlyconverted into a very durable glass. It is fundamentally difficult, however, to assure the validity ofsuch containment based on short-term tests alone. To date, some anthropogenic and natural volcanicglasses have been investigated for this purpose. However, glasses produced by ancient cultures for thepurpose of joining rocks in stonewalls have not yet been utilised in spite of the fact that they might offersignificant insight into the long-term durability of glasses in natural environments. Therefore, a projectis being initiated with the scope of obtaining samples and characterising their environment, as well asto investigate them using a suite of advanced materials characterisation techniques. It will be analysedhow the hillfort glasses may have been prepared, and to what extent they have altered under in-situconditions. The ultimate goals are to obtain a better understanding of the alteration behaviour of nuclearwaste glasses and its compositional dependence, and thus to improve and validate models for nuclearwaste glass corrosion. The paper deals with project planning and initiation, and also presents some earlyfindings on fusion of amphibolite and on the process for joining the granite stones in the hillfort walls.Keywords: ageing, amphibolite, analogue, anthropogenic, Broborg, glass, hillfort, hill-fort, leaching,long-lived, nuclear, rampart, waste.

  • 43.
    Sjöblom, Rolf
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Alunframställning och att lära av historien2015Ingår i: Kemivaerlden, Biotech, Kemisk Tidskrift, ISSN 1653-5596, nr 6, s. 42-Artikel i tidskrift (Övrigt vetenskapligt)
  • 44.
    Brännvall, Evelina
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Andreas, Lale
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Sjöblom, Rolf
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Changes of fly ash properties during the ageing2015Ingår i: Journal of environmental engineering, ISSN 0733-9372, E-ISSN 1943-7870, Vol. 141, nr 5, artikel-id 4014083Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Aging of refuse-derived fuel (RDF) fly ashes was investigated in a long-term laboratory experiment. Aging affected the chemical stability of RDF fly ash in terms of leaching behavior, ANC, and mineralogical transformations. The design of experiment model evaluation showed that the use of RDF ashes in a top cover liner construction has the following advantages: most of the investigated hazardous elements like Pb, Cl, Cr, Cu, etc., will not be released from the ashes, and their buffer capacity will increase with time. However, aging has the disadvantage that leaching of Zn and SO 4 is likely to increase. The multivariate data analysis of the coefficients of variation did not reveal any systematic errors in the performance of the experiment. However, batch leaching test not always reflect the real situation in the landfill top cover environment.

  • 45.
    Travar, Igor
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Andreas, Lale
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Development of drainage water quality from a landfill cover built with secondary construction materials2015Ingår i: Waste Management, ISSN 0956-053X, E-ISSN 1879-2456, Vol. 35, s. 148-158Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim of this study was to evaluate the drainage water quality from a landfill cover built with secondary construction materials (SCM), fly ash (FA), bottom ash (BA) sewage sludge, compost and its changes over time. Column tests, physical simulation models and a full scale field test were conducted. While the laboratory tests showed a clear trend for all studied constituents towards reduced concentrations over time, the concentrations in the field fluctuated considerably. The primary contaminants in the drainage water were Cl−, N, dissolved organic matter and Cd, Cu, Ni, Zn with initial concentrations one to three orders of magnitude above the discharge values to the local recipient. Using a sludge/FA mixture in the protection layer resulted in less contaminated drainage water compared to a sludge/BA mixture. If the leaching conditions in the landfill cover change from reduced to oxidized, the release of trace elements from ashes is expected to last about one decade longer while the release of N and organic matter from the sludge can be shortened with about two–three decades. The observed concentration levels and their expected development over time require drainage water treatment for at least three to four decades before the water can be discharged directly to the recipient.

  • 46. Brännvall, Evelina
    et al.
    Wolters, Martin
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Sjöblom, Rolf
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik. Tekedo AB, Nyköping, Sweden.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Elements availability in soil fertilized with pelletized fly ash and biosolids2015Ingår i: Journal of Environmental Management, ISSN 0301-4797, E-ISSN 1095-8630, Vol. 159, s. 27-36Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim of the study was to evaluate the impact of combined and pelletized industrial residues on availability and mobility of nutrients and potentially toxic elements in soil, plant growth and element uptake. Plant pot experiments were carried out using soil to which 2% of pelletized residue containing biosolids mixed with either municipal solid waste incineration fly ash (MFA) or biofuel fly ash (BFA) was added. The tests showed that the plant growth did not correspond to the content of available nutrients in fertilised soil. MFA application to soil resulted in elevated concentrations of P (506 mg/kg), As (2.7 mg/kg), Cd (0.8 mg/kg) and Pb (12.1 mg/kg) in soil, lower plant uptake of Al (25 mg/kg) and Ba (51 mg/kg), but higher accumulation of As (4.3 mg/kg) and Cd (0.3 mg/kg) in plants compared to the unamended soil and soil amended with BFA. On average, the biomass of the plants grown in the soil containing MFA was larger than in other soils.Considering the use of industrial residue mixtures as soil amendments or fertilizers, the amount of added elements should not exceed those taken up by plants, by this preventing the increase of soil background concentrations.

  • 47.
    Sjöblom, Rolf
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Energy generation by waste incineration: the management of impregnated wood2015Ingår i: Energy and Sustainability VI / [ed] Whady Florez-Escobar; Farid Chejne; Fanor Mondragon; Carlos Brebbia, Southampton, UK: WIT Transactions on Ecology and The Environment , 2015, s. 89-100Konferensbidrag (Refereegranskat)
    Abstract [en]

    Landfilling of organic waste is no longer allowed in Sweden. Instead, essentially all such waste is being recycled, and about half of it goes to incineration which accounts for about 10% of the total need for heating of buildings. Incineration implies destruction of potentially harmful constituents in the waste, but does not destroy contaminant elements such as arsenic which almost exclusively originates from impregnated wood. Methods for identification of chromium, copper and arsenic in such wood are analysed as well as techniques for sorting it into two categories. If incinerated separately, these can give rise to ash with Cr, Cu and As, and ash with only Cu. The former ash has a small volume and can be stabilized/landfilled at a qualified facility, and the latter ash might be used for beneficiation of Cu. In addition, the contamination by As, especially, in other fuels will be small and consequently also in the ash, thus facilitating its use. It is found that such sorting may be achieved using visual inspection as well as x-ray fluorescence (XRF), whilst use of reagents does not appear to offer any advantage over these two. Both methods are already in industrial use in Sweden, thus proving the feasibility of segregation and stabilization of contaminants in impregnated wood.

  • 48.
    Carlsson, My
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Holmström, David
    Profu AB, Mölndal.
    Bohn, Irene
    NSR, North Western Scania Waste Management Company, Helsingborg.
    Bisaillon, Mattias
    Profu AB, Mölndal.
    Morgan-Sagastume, Fernando
    AnoxKaldnes AB, Klosterängsvägen 11A, 226 47 Lund.
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Impact of physical pre-treatment of source-sorted organic fraction of municipal solid waste on greenhouse-gas emissions and the economy in a Swedish anaerobic digestion system2015Ingår i: Waste Management, ISSN 0956-053X, E-ISSN 1879-2456, Vol. 38, s. 117-125Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Several methods for physical pre-treatments of source sorted organic fraction of municipal solid waste (SSOFMSW) before for anaerobic digestion (AD) are available, with the common feature that they generate a homogeneous slurry for AD and a dry refuse fraction for incineration. The selection of efficient methods relies on improved understanding of how the pre-treatment impacts on the separation and on the slurry’s AD. The aim of this study was to evaluate the impact of the performance of physical pre-treatment of SSOFMSW on greenhouse-gas (GHG) emissions and on the economy of an AD system including a biogas plant with supplementary systems for heat and power production in Sweden. Based on the performance of selected Swedish facilities, as well as chemical analyses and BMP tests of slurry and refuse, the computer-based evaluation tool ORWARE was improved as to accurately describe mass flows through the physical pre-treatment and anaerobic degradation. The environmental and economic performance of the evaluated system was influenced by the TS concentration in the slurry, as well as the distribution of incoming solids between slurry and refuse. The focus to improve the efficiency of these systems should primarily be directed towards minimising the water addition in the pre-treatment provided that this slurry can still be efficiently digested. Second, the amount of refuse should be minimised, while keeping a good quality of the slurry. Electricity use/generation has high impact on GHG emissions and the results of the study are sensitive to assumptions of marginal electricity and of electricity use in the pre-treatment.

  • 49.
    Carlsson, My
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Naroznova, Irina
    Department of Environmental Engineering (DTU Environment), Technical University of Denmark.
    Möller, Jacob Steen
    Department of Environmental Engineering (DTU Environment), Technical University of Denmark.
    Scheutz, Charlotte
    Department of Environmental Science and Engineering, Technical University of Denmark.
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Importance of food waste pre-treatment efficiency for global warming potential in life cycle assessment of anaerobic digestion systems2015Ingår i: Resources, Conservation and Recycling, ISSN 0921-3449, E-ISSN 1879-0658, Vol. 102, s. 58-66Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A need for improvement of food waste (FW) pre-treatment methods has been recognized, but few life cycle assessments (LCA) of FW management systems have considered the pre-treatment with respect to input energy, loss of organic material and nutrients for anaerobic digestion (AD) and/or further treatment of the refuse. The objective of this study was to investigate how FW pre-treatment efficiency impacts the environmental performance of waste management, with respect to global warming potential (GWP). The modeling tool EASETECH was used to perform consequential LCA focusing on the impact of changes in mass distribution within framework conditions that were varied with respect to biogas utilization and energy system, representing different geographical regions and/or different time-frames. The variations of the GWP due to changes in pre-treatment efficiency were generally small, especially when biogas and refuse were substituting the same energy carriers, when energy conversion efficiencies were high and slurry quality good enough to enable digestate use on land. In these cases other environmental aspects, economy and practicality could be guiding when selecting pre-treatment system without large risk of sub-optimization with regards to GWP. However, the methane potential of the slurry is important for the net LCA results and must be included in the sensitivity analysis. Furthermore, when biogas is used as vehicle fuel the importance of pre-treatment is sensitive to assumptions and approach of modelling marginal energy which must be decided based on the focus and timeframe of the study in question

  • 50.
    Xue, K.
    et al.
    Institute for Environmental Genomics and Department of Microbiology and Plant Biology, University of Oklahoma, Norman.
    Nostrand, J.D. van
    Institute for Environmental Genomics and Department of Microbiology and Plant Biology, University of Oklahoma, Norman.
    Vangronsveld, Jaco
    Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, B-3590 Diepenbeek.
    Witters, N.
    Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, B-3590 Diepenbeek.
    Janssen, Jolien
    Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, B-3590 Diepenbeek.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Siebielec, Grzegorz
    Institute of Soil Science and Plant Cultivation - State Research Institute.
    Galazka, Rafal
    Institute of Soil Science and Plant Cultivation - State Research Institute.
    Giagnoni, L.
    University of Florence, Department of Agrifood Production and Environmental Sciences, P.le delle Cascine 28, I-50144 Florence.
    Arenella, Mariarita
    Department of Plant, Soil and Environmental Sciences, University of Florence.
    Zhou, J-Z
    Institute for Environmental Genomics and Department of Microbiology and Plant Biology, University of Oklahoma, Norman.
    Renella, Giancarlo
    University of Florence, Department of Agrifood Production and Environmental Sciences, P.le delle Cascine 28, I-50144 Florence, Department of Plant, Soil and Environmental Sciences, University of Florence, University of Florence.
    Management with willow short rotation coppice increase the functional gene diversity and functional activity of a heavy metal polluted soil2015Ingår i: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 138, s. 469-477Artikel i tidskrift (Refereegranskat)