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Mine waste stabilisation with biosludge and Ca carbonate residues: column experiments
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Environmental Geochemistry and Ecotechnology. Ramböll Sverige AB, Sweden .
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2007 (English)In: Biohydrometallury: From the Single Cell to the Environment, Trans Tech Publications Inc., 2007, Vol. 20-21, 291-294 p.Conference paper, Published paper (Refereed)
Abstract [en]

Column experiments investigated the stabilization of waste rock from Ljusnarsberg mine in Kopparberg, Sweden. In order to inhibit the generation of acidic leachate from the waste rock, biosludge and a Ca carbonate - rich residue from the paper industry were mixed with the sulfidic mine waste. The results of the column experiments indicate that the stabilization of the waste rock with the reactive amendments succeeded in maintaining a near - neutral pH in the waste rock leachate, compared to a pH 3 leachate from untreated waste rock. Copper and Zn concentrations in leachate from the untreated waste exceeded 100 mg/L, while these metals were detected at concentrations less than 0.1 and 1 mg/L, respectively, in the leachate from the treated wastes. This study indicates that the stabilization of acid - generating waste rock with biosludge and Ca carbonate residues is effective in preventing the generation of acid mine drainage; the treatment is expected to continue until the reactive amendments are exhausted.

Place, publisher, year, edition, pages
Trans Tech Publications Inc., 2007. Vol. 20-21, 291-294 p.
Series
Advanced materials research, ISSN 1022-6680 ; 20-21
Keyword [en]
waste rock, iron oxide, sulfide oxidation, stabilization, biosludge
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-81481ISI: 000250578900065Scopus ID: 2-s2.0-77951665062ISBN: 978-087849452-1 ISBN: 0878494529 (print)OAI: oai:DiVA.org:kth-81481DiVA: diva2:497522
Conference
17th International Biohydrometallurgy Symposium, IBS 2007; Frankfurt am Main; Germany; 2 September 2007 through 5 September 2007
Note

QC 20120305

Available from: 2012-02-10 Created: 2012-02-10 Last updated: 2014-10-29Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
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  • asciidoc
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