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Leaching of U, V, Ni and Mo from Alum Shale Waste as a Function of Redox and pH - Suggestion for a Leaching method
Örebro University, School of Science and Technology. (Man-Technology-Environment Research Centre)ORCID iD: 0000-0002-7680-1117
Örebro University, School of Science and Technology.ORCID iD: 0000-0001-7845-6495
Örebro University, School of Science and Technology.ORCID iD: 0000-0002-2674-4994
2018 (English)In: Mine Water: Risk to Opportunity / [ed] Wolkersdorfer, Ch., Sartz, L., Weber, A., Burgess, J. and Tremblay, G., Pretoria, South Africa: Tshwane University of Technology , 2018, Vol. II, p. 782-787Conference paper, Published paper (Refereed)
Abstract [en]

Alum shale residues in the form of nes and ash were leached at di erent pH and redox conditions. Total concentrations and mineral analysis indicate loss of some elements in burned shale, and redistribution of others. Uranium and nickel were shown to be more leachable from nes than from ashes. Decreased pH favoured leaching of Ni, U and V, whereas increased pH resulted in increased leaching of molybdenum. Redox conditions a ected leaching of Mo and V, but not U and Ni. us the method can be used as an estimate for leaching at di erent redox and pH conditions.

Place, publisher, year, edition, pages
Pretoria, South Africa: Tshwane University of Technology , 2018. Vol. II, p. 782-787
Keywords [en]
Kvarntorp, alum shale, leaching, uranium, vanadium
National Category
Geochemistry
Research subject
Chemistry
Identifiers
URN: urn:nbn:se:oru:diva-71961ISBN: 978-0-620-80650-3 (electronic)OAI: oai:DiVA.org:oru-71961DiVA, id: diva2:1284118
Conference
11th ICARD, IMWA, WISA MWD 2018 Conference – Risk to Opportunity, Pretoria, South Africa, 10-14 September, 2018
Available from: 2019-01-30 Created: 2019-01-30 Last updated: 2019-03-26Bibliographically approved

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Leaching of U, V, Ni and Mo from Alum Shale Waste as a Function of Redox and pH – Suggestion for a Leaching method(1138 kB)34 downloads
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Åhlgren, KristinaSjöberg, ViktorBäckström, Mattias

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