Ändra sökning
Avgränsa sökresultatet
1234567 151 - 200 av 449
RefereraExporteraLänk till träfflistan
Permanent länk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Träffar per sida
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sortering
  • Standard (Relevans)
  • Författare A-Ö
  • Författare Ö-A
  • Titel A-Ö
  • Titel Ö-A
  • Publikationstyp A-Ö
  • Publikationstyp Ö-A
  • Äldst först
  • Nyast först
  • Skapad (Äldst först)
  • Skapad (Nyast först)
  • Senast uppdaterad (Äldst först)
  • Senast uppdaterad (Nyast först)
  • Disputationsdatum (tidigaste först)
  • Disputationsdatum (senaste först)
  • Standard (Relevans)
  • Författare A-Ö
  • Författare Ö-A
  • Titel A-Ö
  • Titel Ö-A
  • Publikationstyp A-Ö
  • Publikationstyp Ö-A
  • Äldst först
  • Nyast först
  • Skapad (Äldst först)
  • Skapad (Nyast först)
  • Senast uppdaterad (Äldst först)
  • Senast uppdaterad (Nyast först)
  • Disputationsdatum (tidigaste först)
  • Disputationsdatum (senaste först)
Markera
Maxantalet träffar du kan exportera från sökgränssnittet är 250. Vid större uttag använd dig av utsökningar.
  • 151.
    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).

  • 152.
    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.

  • 153.
    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.

  • 154.
    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

  • 155.
    Klausing, Benjamin
    et al.
    TU Hamburg-Harburg.
    Andreas, Lale
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Bilitewski, Bernd
    TU Dresden.
    Auswertung zweier reststoffbasierter Deponieabdeckungen2010Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Large amounts of material will be needed to install covers on closed landfill constructions due to the application of EU landfill directive 1999/31/EC. Approximately 1 million t of ashes are produced in Sweden each year. The interest in substituting conventional construction materials for landfill covers by alternative materials increases by the possibility to implement advantages, such as saving natural resources and economic benefits, using SCM. But to use SCM advantageous for the intended purpose, additional problems compared to the use of conventional materials have to be solved, such as availability, storing, preparation, planning and the construction process itself. Thorough investigations and experiments to characterize the used materials are a necessity. At Tveta Landfill in Södertälje field investigations are performed concerning different cover construction designs. During an excavation in 2007 samples from the different layers of the cover of two test fields were collected. In this study the development of the cover constructions is investigated focusing the mechanical and chemical stability of the cover constructions. During the investigations the bulk density, WHC and total composition of the material were analyzed and a diffusion test was performed. No negative development of the mechanical properties of the material due to ageing processes could be determined. The results of the analyses show that the construction process itself influences the future mechanical and chemical conditions of the cover construction. For example, the delayed covering of the protection layer of area 1 by the vegetation layer resulted in displaced concentrations for most considered components within the solid matter.The comparison of solid matter content and leaching behaviour before installation and after excavation after two and four years, respectively, indicate a trend to decreasing concentrations for most of the concerned components. The trend is only weak due to the short time the material was in place and because the amount of water that percolated through the layers was reported to be small. For some components enrichment especially in the protection layer of area 4 was determined. It could be shown that this enrichment is caused by the superimposed vegetation layer material, which contains high concentration levels for some elements. The transport path of these components leading to a contamination of the other layers by leaching could also be disclosed. The leaching behaviour of the fly ash used in area 4 was studied in a diffusion test using leachate from the protection layer as a way to understand the influence of different layers on each other. Moreover, the comparison of the results from this test with another diffusion test using distilled water reveals different behaviour depending on the used leachant. The diffusion occurs in the initial phase of the experiment for the concerned diffusion controlled components influenced by the leachate of the protection layer. A difference in the leached amounts could also be noticed. The stabilization of the mineral liner due to the formation of clay minerals could not be proved analytically, but the precursors reported to be necessary for this process could be determined.Leaching was found to have the main impact on the stabilization of the cover construction, causing the reduction of component concentrations and the approach to an equilibrium state between the cover and its environment. It was shown that the influence of leaching emissions on the environment is controllable. A risk for the environment was determined by the contaminated vegetation layer of area 4, hence uncontrolled emissions of components into the environment by plants and animals may occur.As a result of this study it is shown that the implementation of SCM is possible. Whether constructing with SCM is successful or not strongly depends on anticipatory planning and the design, the knowledge of the materials properties, their development over time and their interactions.

  • 156.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Aktivitet: Nätverket Renare mark, höstmöte2004Konferensbidrag (Övrig (populärvetenskap, debatt, mm))
  • 157.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Assessment of trace element stabilization in soil2005Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [en]

    The thesis deals with the remediation of trace element contaminated soil by the chemical stabilization technique. The objective is to complement the knowledge about possibilities of applying the stabilization either (1) as an alternate soil remediation method to excavation and landfilling or (2) for a pre-treatment of contaminated soil before landfilling. The work is based on two case studies of the stabilization of 1) Cr, Cu, As, and Zn contaminated soil using metallic iron and 2) Pb and Cu contaminated soil amended with coal fly ash and natural organic matter. The questions in focus were: How efficient the stabilization is in a multi-element contaminated soil? How to assess the soil stabilization efficiency? Is the technique sufficiently developed to be used in large scale applications? A literature review, laboratory and pilot scale field experiments were performed to answer the raised questions. A relevance of various methods for the stability evaluations, as well as environmental, regulatory and economic aspects managing the treated soil are discussed.

  • 158.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Assessment of trace element stabilization in soil by short- and long-term leaching tests: results after 3 years assessment of trace element stabilization in soil with different types of amendments2007Konferensbidrag (Refereegranskat)
    Abstract [en]

    Stabilization technique was applied to treat contaminated soils in laboratory and pilot scale field (lysimeter) experiments. Three types of amendments were tested for their abilities to reduce contaminant mobility in soil: zerovalet iron, coal fly ash from wood and coal combustion, and natural organic matter - peat. The stabilization of the soils contaminated with Pb and Cu (soil S) and wood impregnation chemical cremated copper arsenate (CCA) (soil R), as assessed by batch leaching tests, significantly reduced the leaching of all analyzed elements. Treatment efficiency decreased in the following order (%): Pb(>99)>Cu(98) in soil S and As(99)≈Zn(99)>Cu(93)>Cr(57) in soil R. The results obtained from the lysimeter experiments over a three-year observation period showed nearly as high treatment efficiency as that achieved in the laboratory experiments.

  • 159.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Immobilisation of arsenic in landfilled soil using amendments2012Ingår i: Understanding the geological and medical interface of arsenic, As2012: 4th International Congress Arsenic in the Environment, Sebel Cairns International Hotel, Cairns, Australia, 22-27 July 2012 / [ed] Jack C. Ng, Boca Raton: CRC Press, 2012, s. 326-327Konferensbidrag (Refereegranskat)
    Abstract [en]

    The aim of the study was to assess the leaching of Arsenic (As) from chemically stabilized soil using sulfur-containing amendments under simulated landfill conditions (anaerobic environment). Three soils from former wood impregnation plants containing 270-4590 mg/kg As were mixed either with Coal Fly Ash (CFA), Calcium Sulfate (CaSO 4) or Calcium Sulfide (CaS) (3 wt% each) and incubated for one month in an anaerobic environment. None of the soil amendments were effective to reduce As leaching in anaerobic environment to the levels that were measured in aerobic conditions

  • 160.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Immobilisation of metals leached from municipal waste incineration bottom ashes2004Ingår i: Norsk-svenskt miljökemiskt vintermöte, 2004Konferensbidrag (Övrigt vetenskapligt)
  • 161.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Role of soil organic matter for immobilisation of metals: treatment of leachate from MSWI bottom ashes2003Licentiatavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [en]

    In this thesis, the focus is laid on the ability of natural organic matter (OM) to serve as a metal stabilising agent. The metal contaminants investigated arise from the MSWI bottom ash leachate. Besides the high content of metals, elevated pH and salinity are characteristic for ash leachate that, in turn, can alter the functionality of OM. Batch and column leaching tests were used to study the retention capacity of substrates with different amount of OM. Also, field observations were made of the influence of ash leachate on soil and plants. In this case, ash leachate was generated under field conditions from an experimental road built on municipal solid waste incineration (MSWI) bottom ashes. It has been shown that copper, chromium, and lead retention is proportional to OM content of the substrates. Zinc retention showed to have the least dependence on OM. The metals were not leached in proportion to dissolved OM. Most probably several mechanisms were responsible for the retention of metals: (i) high concentration of Ca in ash leachate could lead to the formation of Ca-dissolved organic carbon (DOC) complexes that have the ability to precipitate some metals (ionic strength effect) and prevent metal transport; (ii) high solution pH could favour hydroxide formation and counteract the metal complexation with dissolved OM, as well as (iii) surface adsorption could contribute to metal retention. Despite the good metal retention capacity of OM, a continuous metal load will occupy binding sites of OM and therefore reduce its retention capacity. Metal retention capacity of rich in OM substrate could be improved by additional soil amendments and vegetation. Tolerant plant species that are capable to grow at high soil metal concentrations and immobilize pollutants within the root zone have a potential to be used for phytostabilisation of metal contaminated soil. Such plants are also associated with a low risk of the translocation of contaminants from soil through plant roots to shoots, i.e. from one media to another. Immobilization is not a technology for the removal of contaminants from soil but for the stabilization (inactivation) of potentially toxic metals. The aim of soil remediation is to reduce the contaminant exposure and spread. Then the reduced leaching, bioavailability, as well as ecotoxicity of metals as a result of phytostabilisation might be a proper solution. Development of suitable soil and amendment mixtures capable to retain broad range of metals and interaction of plants with stabilised matrix are the questions to be answered in the future research.

  • 162.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Trace element immobilization in soil using amendments2010Ingår i: Trace Elements in Soils, Chichester: Wiley-Blackwell Publishing Inc., 2010, s. 353-380Kapitel i bok, del av antologi (Övrigt vetenskapligt)
  • 163.
    Kumpiene, Jurate
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Utilisation of iron-stabilised soil for vegetation cover of landfills2008Ingår i: Contaminants and nutrients: availability, accumulation/exclusion and plant-microbia-soil interactions: WG1 Meeting. Book of Abstracts / [ed] Desana Liskova; Alexander Lux; Michal Martinka, Mgr. Pavola Cibulka, Copycentrum PACI , 2008, s. 39-Konferensbidrag (Övrigt vetenskapligt)
  • 164. Kumpiene, Jurate
    et al.
    Andreas, Lale
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Utilization of chemically stabilized soil in a landfill top cover2008Ingår i: The 5th Intercontinental Landfill Research Symposium: 10-12 Sep 2008, Copper Mountain, CO, USA, 2008Konferensbidrag (Övrigt vetenskapligt)
  • 165.
    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.

  • 166.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Bert, Valérie
    INERIS, Technologies and Sustainable and Clean Processes, Parc Technologique Alata, BP2, 60550 Verneuil en Halatte.
    Dimitriou, Ioannis
    Swedish University of Agriculture Sciences, Department of Crop Production Ecology.
    Eriksson, Jan
    Swedish University of Agriculture Sciences, Department of Soil and Environment.
    Friesl-Hani, Wolfgang
    AIT Austrian Institute of Technology GmbH, Health and Environment Department.
    Galazka, Rafal
    Institute of Soil Science and Plant Cultivation - State Research Institute.
    Herzig, Rolf
    Phytotech Foundation and AGB, Quartiergasse 12, 3013 Bern.
    Janssen, Jolien
    Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, B-3590 Diepenbeek.
    Kidd, Petra
    Instituto de Investigaciones Agrobiológicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC), Santiago de Compostela.
    Mench, Michel
    UMR BIOGECO INRA 1202, Ecology of Communities, Bordeaux 1 University.
    Müller, Ingo
    Saxon State Office for Environment, Agriculture and Geology, Pillnitzer Platz 3, 01326 Dresden.
    Neu, Silke
    Saxon State Office for Environment, Agriculture and Geology, Pillnitzer Platz 3, 01326 Dresden.
    Oustriere, Nadège
    INRA, UMR1202 BIOGECO, F-33610 Cestas, France and Université de Bordeaux.
    Puschenreiter, Markus
    University of Natural Resources and Life Sciences Vienna — BOKU, Department of Forest and Soil Sciences.
    Renella, Giancarlo
    University of Florence, Department of Agrifood Production and Environmental Sciences, P.le delle Cascine 28, I-50144 Florence.
    Roumier, Pierre-Hevré
    Instituto de Investigaciones Agrobiológicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC), Santiago de Compostela.
    Siebielec, Grzegorz
    Institute of Soil Science and Plant Cultivation - State Research Institute.
    Vangronsveld, Jaco
    Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, B-3590 Diepenbeek.
    Manier, Nicolas
    INERIS, Expertise and Assays in Ecotoxicology, Parc Technologique Alata.
    Selecting chemical and ecotoxicological test batteries for risk assessment of trace element-contaminated soils (phyto)managed by gentle remediation options (GRO)2014Ingår i: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 496, s. 510-522Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    During the past decades a number of field trials with gentle remediation options (GRO) have been established on trace element (TE) contaminated sites throughout Europe. Each research group selects different methods to assess the remediation success making it difficult to compare efficacy between various sites and treatments. This study aimed at selecting a minimum risk assessment battery combining chemical and ecotoxicological assays for assessing and comparing the effectiveness of GRO implemented in seven European case studies. Two test batteries were pre-selected; a chemical one for quantifying TE exposure in untreated soils and GRO-managed soils and a biological one for characterizing soil functionality and ecotoxicity. Soil samples from field studies representing one of the main GROs (phytoextraction in Belgium, Sweden, Germany and Switzerland, aided phytoextraction in France, and aided phytostabilization or in situ stabilization/phytoexclusion in Poland, France and Austria) were collected and assessed using the selected test batteries. The best correlations were obtained between NH4NO3-extractable, followed by NaNO3-extractable TE and the ecotoxicological responses. Biometrical parameters and biomarkers of dwarf beans were the most responsive indicators for the soil treatments and changes in soil TE exposures. Plant growth was inhibited at the higher extractable TE concentrations, while plant stress enzyme activities increased with the higher TE extractability. Based on these results, a minimum risk assessment battery to compare/biomonitor the sites phytomanaged by GROs might consist of the NH4NO3 extraction and the bean Plantox test including the stress enzyme activities.

  • 167.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Brännvall, Evelina
    Luleå tekniska universitet, Verksamhetsstöd. EXTfinansiering.
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Andreas, Lale
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Project: North Waste Infrastructure2014Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 168.
    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.
    Taraškevičius, Ričardas
    Institute of Geology and Geography, Nature Research Centre.
    Aksamitauskas, Česlovas
    Vilnius Gediminas Technical University.
    Zinkutė, Rimantė
    Institute of Geology and Geography, Nature Research Centre.
    Spatial variability of topsoil contamination with trace elements in Preschools in Vilnius, Lithuania2011Ingår i: Journal of Geochemical Exploration, ISSN 0375-6742, E-ISSN 1879-1689, Vol. 108, nr 1, s. 15-20Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    An investigation of the spatial variability of topsoil contamination level was performed in 49 preschool playgrounds located in Vilnius city and correlated with urban (height and age of the preschools and height of surrounding buildings) and natural (altitude) factors. Composite samples, consisting of 20-30 sub-samples, were collected from 10 cm topsoil layer with a 3-5 m distance from each other. Sieved fraction (< 0.63 mm) was ashed at 400 °C, ground to < 1.0 μm and analysed for the real total concentrations of 22 trace elements (Ag, B, Ba, Co, Cr, Cu, Ga, Li, Mn, Mo, Nb, Ni, Pb, Sc, Sn, Sr, Ti, V, Y, Yb, Zn and Zr) using optical atomic emission spectrophotometry. Information on construction year and height (number of building stories) of preschool and surrounding buildings was acquired from the Centre of Registers of Lithuania. Out of 22 analysed elements, 13 to a greater extent exceeded the background values in several areas and were used to calculate the total contamination index (Zs13). Out of 49 analysed areas, 21 had moderately hazardous to hazardous levels of contamination as indicated by Zs13. The main contaminating elements, exceeding the permissible concentrations were Ag, Cu, Mo, Pb, Sn and Zn, the origins of which coincide with city industry and traffic. Topsoil around the newer preschool buildings, despite their location, contained lower concentrations of contaminants, while areas at higher altitudes were more contaminated than those located at lower altitudes. The latter causality is biased, as the city industry, and hence the highest contamination, is in districts located higher above sea level than the remaining studied sites.

  • 169.
    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

  • 170.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Desogus, Paolo
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Schulenburg, Sven
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Arenella, Mariarita
    Department of Plant, Soil and Environmental Sciences, University of Florence.
    Renella, Giancarlo
    Department of Plant, Soil and Environmental Sciences, University of Florence.
    Brännvall, Evelina
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Lagerkvist, Anders
    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.
    Utilisation of chemically stabilized arsenic-contaminated soil in a landfill cover2013Ingår i: Environmental science and pollution research international, ISSN 0944-1344, E-ISSN 1614-7499, Vol. 20, nr 12, s. 8649-8662Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim of the study was to determine if an As-contaminated soil, stabilized using zerovalent iron (Fe0) and its combination with gypsum waste, coal fly ash, peat, or sewage sludge, could be used as a construction material at the top layer of the landfill cover. A reproduction of 2 m thick protection/vegetation layer of a landfill cover using a column setup was used to determine the ability of the amendments to reduce As solubility and stimulate soil functionality along the soil profile. Soil amendment with Fe0 was highly efficient in reducing As in soil porewater reaching 99 % reduction, but only at the soil surface. In the deeper soil layers (below 0.5 m), the Fe treatment had a reverse effect, As solubility increased dramatically exceeding that of the untreated soil or any other treatment by one to two orders of magnitude. A slight bioluminescence inhibition of Vibrio fischeri was detected in the Fe0 treatment. Soil amendment with iron and peat showed no toxicity to bacteria and was the most efficient in reducing dissolved As in soil porewater throughout the 2 m soil profile followed by iron and gypsum treatment, most likely resulting from a low soil density and a good air diffusion to the soil. The least suitable combination of soil amendments for As immobilization was a mixture of iron with coal fly ash. An increase in all measured enzyme activities was observed in all treatments, particularly those receiving organic matter. For As to be stable in soil, a combination of amendments that can keep the soil porous and ensure the air diffusion through the entire soil layer of the landfill cover is required.

  • 171.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Ecke, Holger
    Maurice, Christian
    Impact of grassed swales on the fate of metals leached from roads built with municipal solid waste incineration bottom ashes2006Ingår i: Coal Combustion Byproducts and Environmental Issues: [Seventh International Conference on the Biogeochemistry of Trace Elements held at the Swedish University of Agricultural Sciences, Uppsala, Sweden, from June 15-19, 2003], New York: Encyclopedia of Global Archaeology/Springer Verlag, 2006, s. 87-98Kapitel i bok, del av antologi (Övrigt vetenskapligt)
  • 172.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Fitts, Jeffrey
    Brookhaven National Laboratory, Upton, NY.
    Mench, Michel
    Bordeaux 1 University.
    X-ray spectroscopic analyses of As contaminated mining spoils 10 years after chemical stabilization2009Ingår i: 10th International Conference on the Biogeochemistry of Trace Elements: Frontiers in Trace Elements Reasearch and Education, 2009Konferensbidrag (Övrigt vetenskapligt)
  • 173.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Fitts, Jeffrey P.
    Brookhaven National Laboratory, Upton, NY.
    Mench, Michel
    Bordeaux 1 University.
    Arsenic fractionation in mine spoils 10 years after aided phytostabilization2012Ingår i: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 166, s. 82-88Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Aided phytostabilization using a combination of compost, zerovalent iron grit and coal fly ash (CZA) amendments and revegetation effectively promoted the biological recovery of mining spoils generated at a gold mine in Portugal. Selective dissolution of spoil samples in combination with solid phase characterization using microbeam X-ray absorption near edge structure (μXANES) spectroscopy and microbeam X-ray fluorescence (μXRF) mapping were used to assess As associations in spoils ten years after CZA treatment. The results show that As preferentially associates with poorly crystalline Fe-oxyhydroxides as opposed to crystalline Fe-(oxyhydr)oxide phases. The crystalline Fe(III)-phases dominated in the treated spoil and exceeded those of the untreated spoil three-fold, but only 2.6–6.8% of total As was associated with this fraction. Correlation maps of As:Fe reveal that As in the CZA-treated spoils is primarily contained in surface coatings as precipitates and sorbates. Arsenic binding with poorly crystalline Fe-oxyhydroxides did not inhibit As uptake by plants.

  • 174.
    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

  • 175.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Granström, H.
    Ruth, E.
    Maurice, Christian
    Immobilization of contaminants from bottom ashes: the role of soil organic matter2003Ingår i: Journal of Environmental Engineering and Landscape Management, ISSN 1648-6897, E-ISSN 1822-4199, Vol. 11, nr 1, s. 14-22Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The utilization of bottom ashes from municipal solid waste incineration (MSWI) in road constructions might cause environmental problems due to the release of toxic metals. The present work is aimed at studying the suitability of soil as a treatment facility of metals leached out from bottom ashes. A laboratory experiment with three types of soil (forest soil, peat and mould soil), and with sand as a reference substrate, was performed to determine the binding capacity of each substrate towards heavy metals, such as Cu and Cr(VI). The results indicated that all the substrates were capable of removing on average 99,3 % of Cu from the solution, while only peat showed a high retention of Cr(VI) (96,2 %). The retention of Cr(VI) was directly proportional to the soil organic matter (SOM) content, while the retention of Cu had no correlation with the SOM of the substrates. A high retention of Cu shown by sand was due to its high content of pH which could favor the precipitation of Cu(OH)2. A synergetic effect of Cu on the retention of Cr(VI) by sand and mould was detected, i.e. increasing concentrations of Cu in the solution increased the retention of Cr. In all the other cases there was no statistically significant interaction between the retention of Cu and Cr(VI) by the analysed substrates.

  • 176.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Guerri, G.
    University of Florence.
    Landi, L.
    University of Florence.
    Pietramellara, G.
    University of Florence.
    Nannipieri, P.
    University of Florence.
    Renella, G.
    University of Florence.
    Microbial biomass, respiration and enzyme activities after in situ aided phytostabilization of a Pb- and Cu-contaminated soil2009Ingår i: Ecotoxicology and Environmental Safety, ISSN 0147-6513, E-ISSN 1090-2414, Vol. 72, nr 1, s. 115-119Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We conducted a pilot-scale experiment to study the effects of an aided phytostabilisation on soil microbial and biological endpoints in an ore dust-contaminated soil. Soil was amended with alkaline fly ashes plus peat to reduce mobility of trace elements and vegetated with a proprietary grass/herb mixture. Results indicated that the proposed aided phytostabilization approach of Cu-Pb contaminaed soil significantly increased microbial biomass and respiration, reduced microbial stress and increased key soil enzyme activities. Further research is needed to unambiguously determine whether the soil biochemical endpoints that were studied responded more to decreased metal mobility or to general soil amelioration.

  • 177.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser.
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Referensdata för miljöbedömning av alternativa material i sluttäckning av avfallsupplag2009Rapport (Övrigt vetenskapligt)
    Abstract [sv]

    Jord och jordliknande massor är vanliga material som används i översta skikten av sluttäckningar på deponi med förbrukningsmängder som når enbart i Sverige flera miljoner ton per år. Jordstabiliseringsteknik kan tillåta återanvändning av jord med förhöjda halter av spårämnen som ett sekundärt konstruktionsmaterial vid deponier, genom detta kan man avsevärt minska efterfrågan på deponikapacitet, ren jord och transporter. Material klassade som avfall prövas på annat sätt än konventionella material (som vanligen inte undersöks alls). Det leder till att det blir mer komplicerat att använda sekundära konstruktionsmaterial och de väljs bort fast de i praktiken kan ha lika goda eller bättre egenskaper än de naturmaterial som i stället används. För att göra en rimlig bedömning av stabiliserad jords lämplighet som sluttäckningsmaterial en jämförelse med egenskaper av de konventionella material som vanligtviss används i sluttäckningar av deponier ska utföras. Projektets mål var att samla data om kemiska egenskaper hos deponins skyddsskikt med konventionella material som kan användas som referens vid bedömning av alternativa konstruktionsmaterial. Jord och porvatten prover har tagits från översta sluttäckningsskiktet från flera ytor vid sex deponier i norra och södra Sverige (totalt 16 provtagningspunkter). Proverna analyserades för torrsubstans, glödningsförlust (jord), elektrisk konduktivitet, pH, redoxpotential och grundämnesinnehåll. Ytterligare batch-laktest (L/S10) och mätningar av metanoxidations förmåga utfördes på jordprover. Geokemisk modellering och multivariat dataanalys användes för data bearbetning. De undersökta sluttäckningsjordarna hade en stor variation i kemisk sammansättning där grundämneshalter skiljdes sig mellan materialen med flera tiopotenser. Trots de höga totalhalterna av spårämnen, var deras löslighet relativt låg. De flesta material kan klassas som inert avfall och i fem av sexton fall - som icke-farligt avfall. Porvatten från tre sluttäckningar hade metallkoncentrationer som överskred gränser där effekter på organismer i vatten kan börja förekomma. Dock är denna jämförelse en konservativ uppskattning av potentiell påverkan på ytvattenmiljö eftersom markvatten från sluttäckningar späds ut innan det når grund- eller ytvatten. Metanoxiderande förmåga hos sluttäckningsjordar korrelerade till viss grad med mängden organiskt material och den tenderade också att vara högre i yngre täckskikt. Ingen kausalitet kan fastställas på basis av tillgängliga data, men det förefaller rimligt att en rikligare tillgång på deponigas, näringsämnen och vatten har gynnat metanoxidationen i de nyare sluttäckningarna vilka dessutom hade högre halt av organiskt material

  • 178. Kumpiene, Jurate
    et al.
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Maurice, Christian
    Retention of metals leached from municipal solid waste incineration (MSWI) bottom ashes in soils2006Ingår i: Soil & sediment contamination, ISSN 1532-0383, E-ISSN 1549-7887, Vol. 15, nr 4, s. 429-441Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Utilization of bottom ash in road construction may lead to a release of contaminants that can affect the soil of the swales constructed along these roads. Column tests were performed to evaluate the retention behavior of Cu, Cr, Zn, and Pb, originating from municipal solid waste incineration (MSWI) bottom ash leachate, in two substrates: peat and mould (a cultural soil). A chemical sequential extraction method was used to predict the risk associated with the release of the retained elements with modifications of environmental conditions. Apart from the dissolution of organic matter (OM), ash leachate properties hindered the metal transport from peat. Mould was efficient only in removing Zn, making it a less favorable substrate for the leachate control along the roads. Readily soluble forms made up a minor fraction of the retained metals in peat, reducing the risk of metal release due to ion exchange and pH drop. Changes in redox potential might be the main cause of Zn desorption from peat as the Fe-Mn oxides were the main scavengers for this metal. Oxidation of OM would be the primary reason of Cu and Cr release, while for Pb both fractions (Fe-Mn oxides and OM) might equally contribute to the metal discharge.

  • 179. Kumpiene, Jurate
    et al.
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Maurice, Christian
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Stabilization of As, Cr, Cu, Pb and Zn in soil using amendments: a review2008Ingår i: Waste Management, ISSN 0956-053X, E-ISSN 1879-2456, Vol. 28, nr 1, s. 215-225Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The spread of contaminants in soil can be hindered by the soil stabilization technique. Contaminant immobilizing amendments decrease trace element leaching and their bioavailability by inducing various sorption processes: adsorption to mineral surfaces, formation of stable complexes with organic ligands, surface precipitation and ion exchange. Precipitation as salts and co-precipitation can also contribute to reducing contaminant mobility. The technique can be used in in situ and ex situ applications to reclaim and re-vegetate industrially devastated areas and mine-spoils, improve soil quality and reduce contaminant mobility by stabilizing agents and a beneficial use of industrial by-products. This study is an overview of data published during the last five years on the immobilization of one metalloid, As, and four heavy metals, Cr, Cu, Pb and Zn, in soils. The most extensively studied amendments for As immobilization are Fe containing materials. The immobilization of As occurs through adsorption on Fe oxides by replacing the surface hydroxyl groups with the As ions, as well as by the formation of amorphous Fe(III) arsenates and/or insoluble secondary oxidation minerals. Cr stabilization mainly deals with Cr reduction from its toxic and mobile hexavalent form Cr(VI) to stable in natural environments Cr(III). The reduction is accelerated in soil by the presence of organic matter and divalent iron. Clays, carbonates, phosphates and Fe oxides were the common amendments tested for Cu immobilization. The suggested mechanisms of Cu retention were precipitation of Cu carbonates and oxyhydroxides, ion exchange and formation of ternary cation-anion complexes on the surface of Fe and Al oxy-hydroxides. Most of the studies on Pb stabilization were performed using various phosphorus-containing amendments, which reduce the Pb mobility by ionic exchange and precipitation of pyromorphite-type minerals. Zn can be successfully immobilized in soil by phosphorus amendments and clays.

  • 180. Kumpiene, Jurate
    et al.
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Maurice, Christian
    Stabilization of Pb- and Cu-contaminated soil using coal fly ash and peat2007Ingår i: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 145, nr 1, s. 365-373Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The stabilization of metal contaminated soil is being tested as an alternative remediation method to landfilling. An evaluation of the changes in Cu and Pb mobility and bioavailability in soil induced by the addition of coal fly ash and natural organic matter (peat) revealed that the amount of leached Cu decreased by 98.2% and Pb by 99.9%, as assessed by a batch test. Metal leaching from the treated soil was lower by two orders of magnitude compared to the untreated soil in the field lysimeters. A possible formation of mineral Cu- and Pb-bearing phases and active surface with oxides were identified by chemical equilibrium calculations. Low metal leaching during a two-year observation period, increased seed germination rate, reduced metal accumulation in plant shoots, and decreased toxicity to plants and bacteria, thereby demonstrating this stabilization method to be a promising technique for in situ remediation of Cu and Pb contaminated soil. Copper and lead mobility and bioavailability in soil can be effectively reduced by using a combination of coal fly ash and peat as soil amendments.

  • 181.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Lidelöw, Sofia
    Maurice, Christian
    Impact of water saturation level on arsenic leaching in iron-stabilized soil2007Konferensbidrag (Övrigt vetenskapligt)
  • 182.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Liljedahl, Thomas
    Umeå university.
    Maurice, Christian
    Tysklind, Mats
    Umeå university.
    Kessler, Elisabeth
    Editorial2007Ingår i: Ambio, ISSN 0044-7447, E-ISSN 1654-7209, Vol. 36, nr 6, s. 429-Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    During the last decades, contaminated soil has become of both public and scientific concern. National inventories have shown very large numbers of potentially contaminated sites originating from various industrial activities. Industrial technologies in the old days were often based on open systems designed without the insight of their being potential environmental threats. Legal actions taken against organizations responsible for water and air pollution have led to the development of new water and flue gas cleaning technologies. Today, contaminated land plays a major role in sustainable future land use, not only with regard to pollution resulting from old industrial activities but also with regard to the management of present industrial technologies and waste products.Issues related to contaminated soil are by definition interdisciplinary. In the Northern Sweden Soil Remediation Center (MCN), scientists from three universities (Umeå University, Luleå University of Technology, and Swedish University of Agricultural Sciences) and the Swedish Defense Research Agency (FOI) have focused on developing a detailed understanding of the mechanisms and processes in the soil system. Fundamental and applied research in collaboration with enterprises has been performed concerning critical knowledge gaps.The MCN was initiated in 2001 and consists of scientists, representatives from authorities, consultants, and entrepreneurs. The major goals of the MCN have been to increase the scientific basis for the risk assessment of contaminated soil and, by improved knowledge of the interactions between different contaminants and the soil system, to guide the development of remediation methods. New scientific results have been implemented by collaboration enterprises and authorities that have added strategic value for the whole sector in general.This issue of AMBIO summarizes the MCN's research activities, which have focused on inorganic and organic pollutant behavior, analytical methods, and risk assessments of brownfields. In addition, invited contributions from research groups outside the MCN have added other valuable aspects to the multidisciplinary research field.

  • 183.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Maurice, Christian
    Remediation of soil contaminated with inorganic pollutants2003Ingår i: Proceedings / Sixth International Symposium & Exhibition on Environmental Contamination in Central & Eastern Europe and the Commonwealth of Independent States: 1 - 4 September 2003, Prague Mariott Hotel, Prague, Czech Republic, Tallahassee, Fla: Institute for International Cooperative Environmental Research, Florida State University , 2003Konferensbidrag (Refereegranskat)
  • 184.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Maurice, Christian
    Stabilization of Pb and CU contaminated soil2004Ingår i: The 3rd Intercontinental Landfill Research Symposium November 29th - December 2nd, 2004 in Toya, Hokkaido Japan, Hokkaido, 2004, s. 167-169Konferensbidrag (Övrigt vetenskapligt)
  • 185.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Mench, Michel
    UMR BIOGECO INRA 1202, Ecology of Communities, Bordeaux 1 University.
    Bes, Clémence M.
    UMR BIOGECO INRA 1202, Ecology of Communities, Bordeaux 1 University.
    Fitts, Jeffrey P.
    Energy, Environment & National Security, Environmental Sciences Department, Brookhaven National Laboratory, Upton, NY.
    Assessment of aided phytostabilization of copper-contaminated soil by X-ray absorption spectroscopy and chemical extractions2011Ingår i: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 159, nr 6, s. 1536-1542Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Field plots were established at a timber treatment site to evaluate remediation of Cu contaminated topsoils with aided phytostabilization. Soil containing 2600 mg kg-1 Cu was amended with a combination of 5 wt% compost and 2 wt% iron grit, and vegetated. Sequential extraction was combined with extended X-ray absorption fine structure (EXAFS) spectroscopy to correlate changes in Cu distribution across five fractions with changes in the predominant Cu compounds two years after treatment in parallel treated and untreated field plots. Exchangeable Cu dominated untreated soil, most likely as Cu(II) species non-specifically bound to natural organic matter. The EXAFS spectroscopic results are consistent with the sequential extraction results, which show a major shift in Cu distribution as a result of soil treatment to the fraction bound to poorly crystalline Fe oxyhydroxides forming binuclear inner-sphere complexes.

  • 186.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Montesinos, Isaac Castillo
    Luleå University of Technology.
    Lagerkvist, Anders
    Maurice, Christian
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Evaluation of the critical factors controlling stability of chromium, copper, arsenic and zinc in iron-treated soil2007Ingår i: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 67, nr 2, s. 410-417Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Various environmental factors are expected to affect the mobility of elements in chemically stabilized soils. The aim of this study was to evaluate the effects of pH, oxidizing–reducing potential (Eh), liquid-to-solid ratio (L/S), presence of organic matter (OM) and microbial activity (MA) on the mobility of chromium, copper, arsenic and zinc in zerovalent iron (Fe0)-stabilized soil. A 25 full factorial design was applied to assess the leaching of the elements from the treated soil. The factor having the most impact on the mobility of Cr, Cu and Zn was pH; low pH (3) led to the release of these elements. Arsenic remobilization was controlled by L/S and MA, whilst Eh, though also significant, had less influence. In the identified worst-case scenarios, more than half of the total Zn and Cu and 14% of As can be expected to remobilize from the treated soil. The leaching procedure concerning sample agitation and type of filtration showed to substantially affect the results of As leaching, especially in OM rich soil.

  • 187.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Niero, L.
    Universita Degli Studi di Padova.
    Chemically stabilized arsenic-contaminated soil for landfill covers2014Ingår i: One century of the discovery of arsenicosis in Latin America (1914-2014): As 2014 - proceedings of the 5th international congress on arsenic in the environment / [ed] Marta I. Litter, Boca Raton,Ffla.: CRC Press, 2014, s. 842-843Konferensbidrag (Refereegranskat)
    Abstract [en]

    Arsenic (As) stabilization using zerovalent iron (Fe0) and its combination with peat was investigated in soil used as a pilot scale landfill cover in Northern Sweden. Leachate percolating through a 2 m thick layer of treated and untreated soil was collected in field. Chemical fractionation using sequential extraction, phytotoxicity test with dwarf beans and bioaccessibility tests simulating gastric solution were performed to assess the residual risks to the environment and human health. The results show that the exchangeable As-fraction in stabilized soils decreased when compared to the untreated soil, while other fractions remained unaffected. All the morphological parameters of plants improved and the bioaccessible As-fraction significantly decreased in the Fe-peat treated soil. The analysis of the leachates collected in field showed a substantially decreased As concentration in the Fe-peat amended soil. Further sampling is on-going in order to determine whether or not the treatment is successful in a long-term.

  • 188.
    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

  • 189.
    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.

  • 190.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser.
    Nordmark, Desiree
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Robinson, Ryan
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser.
    Minskad mängd organiskt avfall på deponi: Effekt på redox-förhållanden, nedbrytning av organiskt material och utlakning av redox-känsliga ämnen2008Rapport (Övrigt vetenskapligt)
    Abstract [sv]

    I den nya EU-lagstiftningen angående deponering av avfall (2003/33/EC) finns krav på att den totala organiska halten kol (TOC) i avfall inte bör överstiga 3% för inert avfall, 5% för icke farligt avfall, 6% för farligt avfall och 18% för restprodukter från avfallsförbränning, vilket innebär en sänkning av tidigare gränsvärden. Förändringen kan få konsekvenser för bland annat mobiliteten hos redox-känsliga ämnen. Vid analys av TOC enligt europeisk och svensk standard (EN 13 137) går det inte att särskilja mellan organiskt kol och elementärt kol vilket är ett problem eftersom elementärt kol är inert i deponeringssammanhang. Genom biologiska, kemiska och termogravimetriska analyser har det här projektet försökt ge svar på hur stor andel av TOC som motsvaras av organiskt, lätt nedbrytbart kol och hur stor effekt halten organiskt material har på utlakningen av redox-känsliga ämnen från avfall. Tre olika avfall har ingått i undersökningen och som representerar aktuella avfallsströmmar till svenska upplag: en CCAförorenad jord, en bottenaska från biobränsleförbränning och ett restavfall. Nedbrytningen av organiskt material i avfallen och dess inverkan på utlakningen av redoxkänsliga ämnen har studerats i laboratorieförsök med metoder som BMP-försök (metanbildningspotential vid nedbrytning av organiskt material) och olika laktest i oxiderad och reducerad miljö, med och utan tillsats av organiskt material. Kolspeciering har gjorts dels med standardiserade analysmetoder för TOC men också med termogravimetrisk (TG) analys kopplad till differentiell termisk analys (DTA) och quadrupole masspektrometri (QMS). Resultaten från kolspecieringen med TG-analys visar på att den dominerade andelen kol i samtliga avfall var elementärt kol (ca 60%) medan standardiserad TOC-analys visar på att allt kol i askan och jorden var organiskt. Kolinnehållet i restfraktionen varierade stort och gav inga signifikanta skillnader mellan totalt och organiskt kol. Bestämningen av TOC, med standardiserad metod, i jorden och askan gav signifikant högre värden än analys med TG. Restfaktionen uppvisade ingen signifikant skillnad mellan de båda metoderna. Restfraktionen uppvisade den högsta gasbildningspotentialen medan nedbrytningen av organiskt material i askor kan vara svår att bedöma med biologiska metoder på grund av karbonatiseringsreaktioner i materialet. Utlakningen av redox-känsliga ämnen påverkades av mängden reaktivt organiskt material. En hög halt organiskt material sänkte redoxpotentialen i avfallen och krom och koppa visade på en minskad utlakning i reducerade miljö i samtliga avfall, zink även i jorden och restfaktionen. Utlakningen av arsenik och bly ökade i reducerande miljö från samtliga avfall. Från askan ökade också utlakningen av zink. Generellt ökar utlakningen av ämnen som till största delen är bundna till reducerbart material (t.ex. Fe-Mn-oxider) vid en högre halt organiskt material, medan det omvända gäller för ämnen som till största delen är bundna till oxiderbart material (organiskt material och sulfider). Andra faktorer som inverkar på mobiliteten hos kritiska ämnen är faktorer som pH och närvaron av ligander. Även materialens fysiska egenskaper som porositet och permeabilitet måste vägas in vid en bedömning av ändrad avfallssammansättnings effekt på utlakningen från deponier.

  • 191.
    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.

  • 192.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Ore, Solvita
    Lagerkvist, Anders
    Maurice, Christian
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Erratum to "Stabilization of Pb- and Cu-contaminated soil using coal fly ash and peat" (vol 145, pg 365, 2007)2007Ingår i: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 148, nr 1, s. 384-384Artikel i tidskrift (Övrigt vetenskapligt)
  • 193. Kumpiene, Jurate
    et al.
    Ore, Solvita
    Renella, Giancarlo
    University of Florence.
    Mench, Michel
    Bordeaux University.
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Maurice, Christian
    Assessment of zerovalent iron for stabilization of chromium, copper, and arsenic in soil2006Ingår i: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 144, nr 1, s. 62-69Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Stabilization of soil contaminated with trace elements is a remediation practice that does not reduce the total content of contaminants, but lowers the amounts of mobile and bioavailable fractions. This study evaluated the efficiency of Fe(0) to reduce the mobility and bioavailability of Cr, Cu, As and Zn in a chromated copper arsenate (CCA)-contaminated soil using chemical, biochemical and biotoxicity tests. Contaminated soil was stabilized with 1% iron grit. This treatment decreased As and Cr concentrations in leachates (by 98% and 45%, respectively), in soil pore water (by 99% and 94%, respectively) and in plant shoots (by 84% and 95%, respectively). The stabilization technique also restored most of analyzed soil enzyme activities and reduced microbial toxicity, as evaluated by the BioTox test. After stabilization, exchangeable and bioaccessible fractions of Cu remained high, causing some residual toxicity in the treated soil.

  • 194.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Ragnvaldsson, Daniel
    Swedish Defence Research Agency, Umeå.
    Lövgren, Lars
    Umeå university.
    Tesfalidet, Solomon
    Umeå university.
    Gustavsson, Björn
    Lättström, Anders
    Umeå university.
    Leffler, Per
    Swedish Defence Research Agency, Umeå.
    Maurice, Christian
    Impact of water saturation level on arsenic and metal mobility in the Fe-amended soil2009Ingår i: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 74, nr 2, s. 206-215Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The impact of water saturation level (oxidizing-reducing environment) on As and metal solubility in chromium, copper, arsenic (CCA)-contaminated soil amended with Fe-containing materials was studied. The soil was mixed with 0.1 and 1 wt% of iron grit (Fe(0)) and 1, 7 and 15 wt% of oxygen scarfing granulate (OSG, a by-product of steel processing). Solubility of As and metals was evaluated by a batch leaching test and analysis of soil pore water. Soil saturation with water greatly increased As solubility in the untreated as well as in the Fe-amended soil. This was related to the reductive dissolution of Fe oxides and increased concentration of As(III) species. Fe amendments showed As reducing capacity under both oxic and anoxic conditions. The cytotoxicity of the soil pore water correlated with the concentration of As(III). The Fe-treatments as well as water saturation of soil were less significant for the solubility of Cu, Cr and Zn than for As. The batch leaching test used for waste characterization substantially underestimated As solubility that could occur under water-saturated (anaerobic) conditions. In the case of soil landfilling, other techniques than Fe-stabilization of As containing soil should be considered.

  • 195.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Robinson, Ryan
    Brännvall, Evelina
    Nordmark, Desiree
    Bjurstöm, Henrik
    ÅF-Engineering AB.
    Andreas, Lale
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Lagerkvist, Anders
    Ecke, Holger
    Carbon speciation in ash, residual waste and contaminated soil by thermal and chemical analyses2011Ingår i: Waste Management, ISSN 0956-053X, E-ISSN 1879-2456, Vol. 31, nr 1, s. 18-25Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Carbon in waste can occur as inorganic (IC), organic (OC) and elemental carbon (EC) each having distinct chemical properties and possible environmental effects. In this study, carbon speciation was performed using thermogravimetric analysis (TGA), chemical degradation tests and the standard total organic carbon (TOC) measurement procedures in three types of waste materials (bottom ash, residual waste and contaminated soil). Over 50% of the total carbon (TC) in all studied materials (72% in ash and residual waste, and 59% in soil) was biologically non-reactive or EC as determined by thermogravimetric analyses. The speciation of TOC by chemical degradation also showed a presence of a non-degradable C fraction in all materials (60% of TOC in ash, 30% in residual waste and 13% in soil), though in smaller amounts than those determined by TGA. In principle, chemical degradation method can give an indication of the presence of potentially inert C in various waste materials, while TGA is a more precise technique for C speciation, given that waste-specific method adjustments are made. The standard TOC measurement yields exaggerated estimates of organic carbon and may therefore overestimate the potential environmental impacts (e.g. landfill gas generation) of waste materials in a landfill environment.

  • 196.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Sližytė, Danutė
    Vilnius Gediminas Technical University.
    Andreas, Lale
    Lagerkvist, Anders
    Suitability assessment of chemically stabilized soil for utilization in constructions2007Ingår i: Selected papers / The 9th International Conference Modern Building Materials, Structures and Techniques: International Association for Bridges and Structural Engineering, European Council of Civil Engineers, The Association of European Civil Engineering Faculties, Lithuanian Academy of Science, Vilnius Gediminas Technical University, Vilnius: Politechnika Gdanska, 2007, Vol. 3, s. 1126-1129Konferensbidrag (Refereegranskat)
  • 197.
    Kumpiene, Jurate
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Xu, Jingying
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Bäckström, Anna
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Arsenic leaching in landfilled soil2012Ingår i: Abstract proceedings of 7th Intercontinental Landfill Research Symposium: Södra Sunderbyn, June 25th to 27th, 2012 / [ed] Anders Lagerkvist, Luleå: Luleå tekniska universitet, 2012, s. 87-Konferensbidrag (Refereegranskat)
  • 198.
    Kylefors, K.
    et al.
    Luleå University of Technology.
    Ecke, Holger
    Lagerkvist, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
    Relevancy of a discharge limit of COD for landfill leachates1999Ingår i: Sardinia 99: proceedings / Seventh International Waste Management and Landfill Symposium, [4 - 8 October 1999, S. Margherita di Pula, Cagliari, Sardinia, Italy]. / [ed] Thomas H. Christensen, Cagliari: CISA, Environmental Sanitary Engineering Centre , 1999, Vol. 1, s. 201-205Konferensbidrag (Refereegranskat)
  • 199.
    Kylefors, Katarina
    Luleå tekniska universitet.
    Evaluation of leachate composition by multivariate data analysis (MVDA)2003Ingår i: Journal of Environmental Management, ISSN 0301-4797, E-ISSN 1095-8630, Vol. 68, nr 4, s. 367-76Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Landfills generate emissions in the form of gas and leachate. The emissions are often measured within monitoring programmes. It is likely that the requirements of such monitoring programmes can be extended in the future, particularly in light of the increased interest in specific organic substances. Multivariate data analyses (MVDA) have been used to evaluate the possibility of predicting the content of specific organic substances from more common analyses. The results indicate that this is possible for a specific leachate. MVDA can also be used to reduce the number of analyses performed within existing monitoring programmes while retaining information about all the variables formerly included in the programmes.

  • 200.
    Kylefors, Katarina
    Luleå tekniska universitet.
    Landfill leachate management: short and long term perspectives1997Licentiatavhandling, sammanläggning (Övrigt vetenskapligt)
1234567 151 - 200 av 449
RefereraExporteraLänk till träfflistan
Permanent länk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf