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Publications (10 of 43) Show all publications
Vicenzi, E. P., Pearce, C. I., Weaver, J. L., McCloy, J. S., Wight, S., Lam, T., . . . Kruger, A. A. (2018). Compositional Imaging and Analysis of Late Iron Age Glass from the Broborg Vitrified Hillfort, Sweden. Microscopy and Microanalysis, 24(S1), 2134-2135
Open this publication in new window or tab >>Compositional Imaging and Analysis of Late Iron Age Glass from the Broborg Vitrified Hillfort, Sweden
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2018 (English)In: Microscopy and Microanalysis, ISSN 1431-9276, E-ISSN 1435-8115, Vol. 24, no S1, p. 2134-2135Article in journal, Meeting abstract (Refereed) Published
Place, publisher, year, edition, pages
Cambridge University Press, 2018
National Category
Other Environmental Engineering
Research subject
Waste Science and Technology
Identifiers
urn:nbn:se:ltu:diva-71172 (URN)10.1017/S1431927618011157 (DOI)
Note

Konferensartikel i tidskrift

Available from: 2018-10-11 Created: 2018-10-11 Last updated: 2018-12-20Bibliographically approved
Weaver, J. L., Pearce, C. I., Arey, B., Conroy, M., Vicenzi, E. P., Sjöblom, R., . . . Kruger, A. A. (2018). Microscopic Identification of Micro-Organisms on Pre-Viking Swedish Hillfort Glass. Microscopy and Microanalysis, 24(S1), 2136-2137
Open this publication in new window or tab >>Microscopic Identification of Micro-Organisms on Pre-Viking Swedish Hillfort Glass
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2018 (English)In: Microscopy and Microanalysis, ISSN 1431-9276, E-ISSN 1435-8115, Vol. 24, no S1, p. 2136-2137Article in journal, Meeting abstract (Refereed) Published
Place, publisher, year, edition, pages
Cambridge University Press, 2018
National Category
Other Environmental Engineering
Research subject
Waste Science and Technology
Identifiers
urn:nbn:se:ltu:diva-71171 (URN)10.1017/S1431927618011169 (DOI)
Note

Konferensartikel i tidskrift

Available from: 2018-10-11 Created: 2018-10-11 Last updated: 2018-12-20Bibliographically approved
Sjöblom, R. (2018). Reducing risk and uncertainty associated with nuclear waste processing and disposal: a Hanfort tank waste study. In: Materials Research Society, 2018 Fall Meeting & Exhibit, ET15: Scientific basis for nuclear waste management: Perspectives on strategy, risk and uncertainty in radioactive waste management. Paper presented at Materials Research Society, 2018 Fall Meeting & Exhibit, November 25-30, Boston, Massachusetts, USA. ET15: Scientific basis for nuclear waste management. Materials Research Society, ET15.01, Article ID ET15.01.04.
Open this publication in new window or tab >>Reducing risk and uncertainty associated with nuclear waste processing and disposal: a Hanfort tank waste study
2018 (English)In: 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, article id ET15.01.04Conference paper, Oral presentation with published abstract (Refereed)
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.

Place, publisher, year, edition, pages
Materials Research Society, 2018
National Category
Other Environmental Engineering
Research subject
Waste Science and Technology
Identifiers
urn:nbn:se:ltu:diva-71884 (URN)
Conference
Materials Research Society, 2018 Fall Meeting & Exhibit, November 25-30, Boston, Massachusetts, USA. ET15: Scientific basis for nuclear waste management
Available from: 2018-12-04 Created: 2018-12-04 Last updated: 2018-12-05
Pearce,, C., Weaver, J., Vicenzi, E., Lam, T., Depriest, P., Koestler, R., . . . Kruger, A. (2017). Investigating alteration of pre-viking hillfort glasses from the broborg Hillfort Site, Sweden. In: Materials science & technology conference and exhibition 2017 (MS&T'17).: . Paper presented at Materials Science and Technology Conference and Exhibition 2017, MS and T 2017; David L. Lawrence Convention Center Pittsburgh; United States; 8-12 October 2017 (pp. 957-959). Association for Iron and Steel Technology, AISTECH, 2
Open this publication in new window or tab >>Investigating alteration of pre-viking hillfort glasses from the broborg Hillfort Site, Sweden
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2017 (English)In: Materials science & technology conference and exhibition 2017 (MS&T'17)., Association for Iron and Steel Technology, AISTECH , 2017, Vol. 2, p. 957-959Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Association for Iron and Steel Technology, AISTECH, 2017
National Category
Other Environmental Engineering
Research subject
Waste Science and Technology
Identifiers
urn:nbn:se:ltu:diva-69218 (URN)10.7449/2017/MST-2017-957-959 (DOI)2-s2.0-85047602067 (Scopus ID)9781510850583 (ISBN)
Conference
Materials Science and Technology Conference and Exhibition 2017, MS and T 2017; David L. Lawrence Convention Center Pittsburgh; United States; 8-12 October 2017
Available from: 2018-06-08 Created: 2018-06-08 Last updated: 2018-06-08Bibliographically approved
Sjöblom, R., Zietek, A., Gaude, E., Fagerqvist, J. & Karlfeldt Fejde, K. (2016). Stabilization Of Lead In Incineration Fly Ash By Ageing And Carbonatation In Contact With Moisture And Air. Paper presented at 8th International Conference on Waste Managementand the Environment (Waste Management 2016), Valencia, Spain, 7 - 9 June 2016. International Journal of Sustainable Development and Planning, 11(5), 683-693
Open this publication in new window or tab >>Stabilization Of Lead In Incineration Fly Ash By Ageing And Carbonatation In Contact With Moisture And Air
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2016 (English)In: International Journal of Sustainable Development and Planning, ISSN 1743-7601, E-ISSN 1743-761X, Vol. 11, no 5, p. 683-693Article in journal (Refereed) Published
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

National Category
Other Environmental Engineering
Research subject
Waste Science and Technology
Identifiers
urn:nbn:se:ltu:diva-59783 (URN)10.2495/SDP-V11-N5-683-693 (DOI)2-s2.0-84991738583 (Scopus ID)
Conference
8th International Conference on Waste Managementand the Environment (Waste Management 2016), Valencia, Spain, 7 - 9 June 2016
Note

Konferensartikel i tidskrift

Available from: 2016-10-17 Created: 2016-10-17 Last updated: 2018-05-07Bibliographically approved
Sjöblom, R., Weaver, J. L., Peeler, D. K., McCloy, J. S., Kruger, A. A., Ogenhall, E. & Hjärtner-Holdar, E. (2016). Vitrified hillforts as anthropogenic analogues for nuclear waste glasses: project planning and initiation. Paper presented at 3rd International Conference on Environmental andEconomic Impact on Sustainable Development, Valencia, Spain, 8 - 10 June 2016. International Journal of Sustainable Development and Planning, 11(6), 897-906
Open this publication in new window or tab >>Vitrified hillforts as anthropogenic analogues for nuclear waste glasses: project planning and initiation
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2016 (English)In: International Journal of Sustainable Development and Planning, ISSN 1743-7601, E-ISSN 1743-761X, Vol. 11, no 6, p. 897-906Article in journal (Refereed) Published
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.

National Category
Other Environmental Engineering
Research subject
Waste Science and Technology
Identifiers
urn:nbn:se:ltu:diva-59780 (URN)10.2495/SDP-V11-N6-897-906 (DOI)2-s2.0-84991619978 (Scopus ID)
Conference
3rd International Conference on Environmental andEconomic Impact on Sustainable Development, Valencia, Spain, 8 - 10 June 2016
Note

Konferensartikel i tidskrift

Available from: 2016-10-17 Created: 2016-10-17 Last updated: 2018-05-07Bibliographically approved
Sjöblom, R. (2015). Alunframställning och att lära av historien (ed.). Kemivaerlden, Biotech, Kemisk Tidskrift (6), 42
Open this publication in new window or tab >>Alunframställning och att lära av historien
2015 (Swedish)In: Kemivaerlden, Biotech, Kemisk Tidskrift, ISSN 1653-5596, no 6, p. 42-Article in journal (Other academic) Published
National Category
Other Environmental Engineering
Research subject
Waste Science and Technology
Identifiers
urn:nbn:se:ltu:diva-11866 (URN)ae36c00b-8197-4927-81ff-ebf1f1dc9bdc (Local ID)ae36c00b-8197-4927-81ff-ebf1f1dc9bdc (Archive number)ae36c00b-8197-4927-81ff-ebf1f1dc9bdc (OAI)
Note

Godkänd; 2015; 20151022 (rolsjo)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-05-07Bibliographically approved
Brännvall, E., Andreas, L., Sjöblom, R. & Lagerkvist, A. (2015). Changes of fly ash properties during the ageing (ed.). Paper presented at . Journal of environmental engineering, 141(5), Article ID 4014083.
Open this publication in new window or tab >>Changes of fly ash properties during the ageing
2015 (English)In: Journal of environmental engineering, ISSN 0733-9372, E-ISSN 1943-7870, Vol. 141, no 5, article id 4014083Article in journal (Refereed) Published
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.

National Category
Other Environmental Engineering
Research subject
Waste Science and Technology
Identifiers
urn:nbn:se:ltu:diva-8256 (URN)10.1061/(ASCE)EE.1943-7870.0000910 (DOI)000353994400004 ()2-s2.0-84928011872 (Scopus ID)6bc7765e-e807-45da-9caf-9969de602d29 (Local ID)6bc7765e-e807-45da-9caf-9969de602d29 (Archive number)6bc7765e-e807-45da-9caf-9969de602d29 (OAI)
Note
Validerad; 2015; Nivå 2; 20130923 (evebra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Brännvall, E., Wolters, M., Sjöblom, R. & Kumpiene, J. (2015). Elements availability in soil fertilized with pelletized fly ash and biosolids (ed.). Journal of Environmental Management, 159, 27-36
Open this publication in new window or tab >>Elements availability in soil fertilized with pelletized fly ash and biosolids
2015 (English)In: Journal of Environmental Management, ISSN 0301-4797, E-ISSN 1095-8630, Vol. 159, p. 27-36Article in journal (Refereed) Published
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.

National Category
Other Environmental Engineering
Research subject
Waste Science and Technology
Identifiers
urn:nbn:se:ltu:diva-10865 (URN)10.1016/j.jenvman.2015.05.032 (DOI)000357908000004 ()26042629 (PubMedID)2-s2.0-84930205392 (Scopus ID)9bd3e8bf-6ee6-4699-a07d-5e6f8104c789 (Local ID)9bd3e8bf-6ee6-4699-a07d-5e6f8104c789 (Archive number)9bd3e8bf-6ee6-4699-a07d-5e6f8104c789 (OAI)
Note

Validerad; 2015; Nivå 2; 20140213 (evebra)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Sjöblom, R. & Kumpiene, J. (2015). Energy generation by waste incineration: the management of impregnated wood (ed.). In: (Ed.), Whady Florez-Escobar; Farid Chejne; Fanor Mondragon; Carlos Brebbia (Ed.), Energy and Sustainability VI: . Paper presented at International Conference on Energy and Sustainability : Energy and Sustainability 2015 02/09/2015 - 04/09/2015 (pp. 89-100). Southampton, UK: WIT Transactions on Ecology and The Environment
Open this publication in new window or tab >>Energy generation by waste incineration: the management of impregnated wood
2015 (English)In: Energy and Sustainability VI / [ed] Whady Florez-Escobar; Farid Chejne; Fanor Mondragon; Carlos Brebbia, Southampton, UK: WIT Transactions on Ecology and The Environment , 2015, p. 89-100Conference paper, Published paper (Refereed)
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.

Place, publisher, year, edition, pages
Southampton, UK: WIT Transactions on Ecology and The Environment, 2015
Series
WIT Transactions on Ecology and the Environment, ISSN 1743-3541
Keywords
impregnated wood, sorting, arsenic, XRF, incineration, ash, Other technology - Environmental engineering, Övriga teknikvetenskaper - Miljöteknik
National Category
Other Environmental Engineering
Research subject
Waste Science and Technology
Identifiers
urn:nbn:se:ltu:diva-40100 (URN)f1592e2f-fd3c-4386-9a5d-6f813cb937d0 (Local ID)978-1-84564-944-9 (ISBN)978-1-84564-945-6 (ISBN)f1592e2f-fd3c-4386-9a5d-6f813cb937d0 (Archive number)f1592e2f-fd3c-4386-9a5d-6f813cb937d0 (OAI)
Conference
International Conference on Energy and Sustainability : Energy and Sustainability 2015 02/09/2015 - 04/09/2015
Note
Validerad; 2015; Nivå 1; 20150920 (rolsjo)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2018-05-07Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0003-2544-6087

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