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Strategy for instant neutralisation and metal immobilisation in ARD
Örebro University, School of Science and Technology.ORCID iD: 0000-0001-9348-6481
Örebro University, School of Science and Technology.ORCID iD: 0000-0002-2674-4994
Örebro University, School of Science and Technology.
Örebro University, School of Science and Technology.ORCID iD: 0000-0002-2104-4593
2010 (English)In: Mine water and innovative thinking: proceedings 2010 / [ed] Christian Wolkersdorfer, Antje Freund, Nova Scotia, Canada: Cape Breton University Press , 2010, p. 267-270Conference paper, Published paper (Refereed)
Abstract [en]

For ARD filters, reactive barriers are often the methods of choice. Some problems are recognised though; iron precipitation cause hydraulic changes and inhibition of neutralising phases. Instead of filter/barrier installation alkalinity is suggested to be added in an aqueous phase (leach beds). Addition of a highly alkaline solution to different ARD results in a rapid, almost instant neutralisation, precipitation of metals (Fe, Al) as well as almost quantitative coprecipitation and sorption of trace metals at near neutral pH. Generation of alkalinity on-site, added to ARD as an aqueous phase, would be a fast and simple ARD treatment method.

Place, publisher, year, edition, pages
Nova Scotia, Canada: Cape Breton University Press , 2010. p. 267-270
Keywords [en]
Precipitation, co-precipitation, sorption, HFO, HAO, leach beds
National Category
Natural Sciences Chemical Sciences
Research subject
Chemistry
Identifiers
URN: urn:nbn:se:oru:diva-24259ISI: 000323234800060ISBN: 978-1-897009-47-5 (print)OAI: oai:DiVA.org:oru-24259DiVA, id: diva2:543015
Conference
International Mine Water Association symposium: Mine Water and Innovative Thinking (IMWA), Sydney, Nova Scotia, Canada, sep. 05-09, 2010
Available from: 2012-08-06 Created: 2012-08-06 Last updated: 2019-03-26Bibliographically approved

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Sartz, LottaBäckström, MattiasKarlsson, StefanAllard, Bert

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CiteExportLink to record
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Citation style
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  • harvard1
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Output format
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