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On the neutralisation of ARD and acid generating waste rock by different alkalinity sources: carbonate and/or hydroxide
Örebro University, School of Science and Technology. Bergskraft Bergslagen AB, Kumla, Sverige.
Örebro University, School of Science and Technology. (Forskningscentrum Människa-Teknik-Miljö)ORCID iD: 0000-0002-2674-4994
Örebro University, School of Science and Technology. (Forskningscentrum Människa-Teknik-Miljö)ORCID iD: 0000-0002-2104-4593
2010 (English)In: Mine water & innovative thinking: proceedings 2010 / [ed] Wolkersdorfer, C. and Freund, A., Nova Scotia, Canada: Cape Breton University Press , 2010, p. 263-266Conference paper, Published paper (Refereed)
Abstract [en]

Six alkaline waste materials were tested for their neutralising capacity and metal immobilisation ability as amendments to a weathered waste rock. Two of the materials were of carbonate-type: lime mud (LM) and green liquor dreg (GLD) and four were of hydroxide-type: lime kiln dust (LKD), LD-slag (LD), carbonated fly ash (CFA) and a fresh fly ash (FFA). pH achieved by carbonate and ARD reactions (approximately 6) is too low to ensure quantitative sorption of e.g. Zn and Cd. Hydroxide neutralisation reactions however result in higher pH, but lower alkalinity.

Place, publisher, year, edition, pages
Nova Scotia, Canada: Cape Breton University Press , 2010. p. 263-266
Keywords [sv]
Alkaline by-products, fly ash, LKD, immobilisation
National Category
Earth and Related Environmental Sciences
Research subject
Enviromental Science
Identifiers
URN: urn:nbn:se:oru:diva-30867ISI: 000323234800059ISBN: 978-1-897009-47-5 (print)OAI: oai:DiVA.org:oru-30867DiVA, id: diva2:649563
Conference
International Mine Water Association symposium: Mine Water and Innovative Thinking (IMWA), Sydney, Nova Scotia, Canada, Sep. 05-09, 2010
Available from: 2013-09-18 Created: 2013-09-18 Last updated: 2018-04-24Bibliographically approved

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Sartz, LottaBäckström, MattiasAllard, Bert

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