Electrolyte conditioning-enhanced electrokinetic remediation of arsenic-contaminated mine tailing

Title
Electrolyte conditioning-enhanced electrokinetic remediation of arsenic-contaminated mine tailing
Authors
백기태김도형박성우류병곤Tserennyam Bajargal양중석
Keywords
electrokinetic; anolyte conditioning; catholyte conditioning; enhanced electrokinetics; arsenic remediation; mine tailing
Issue Date
2009-01
Publisher
Journal of hazardous materials
Citation
VOL 161, NO 1, 457-462
Abstract
Feasibility of electrolyte conditioning with strong acidic or alkaline solution on electrokinetic remediation of arsenic-contaminated mine tailing was investigated in the laboratory. The mine tailing contained calcium oxide of more than 50%. At alkaline condition, arsenicwas precipitated with calcium, and formed calcium arsenate which is very stable solid. Catholyte conditioning with strong acidic solution and anolyte conditioning with strong alkaline solution showed similar efficiency to remove arsenic. At 4mAcm−2 of current density, the removal efficiency of arsenic was 62% after 28 days operation with catholyte conditioning with 0.1M nitric acid.
URI
http://pubs.kist.re.kr/handle/201004/34796
ISSN
0304-3894
Appears in Collections:
KIST Publication > Article
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