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Cu, Pb, As 복합 중금속오염 토양의 전기동력학적 정화에서 전해질의 영향 평가Evaluation of Processing Fluids on Electrokinetic remediation of Cu, Pb, As-contaminated soil
- Other Titles
- Evaluation of Processing Fluids on Electrokinetic remediation of Cu, Pb, As-contaminated soil
- Issue Date
- May-2010
- Publisher
- 한국지하수토양환경학회
- Keywords
- Electrokinetic remediation; Multi-metal contaminated soil; Processing fluids; pH control
- Citation
- 지하수토양환경, v.15, no.5, pp 1 - 7
- Pages
- 7
- Journal Title
- 지하수토양환경
- Volume
- 15
- Number
- 5
- Start Page
- 1
- End Page
- 7
- ISSN
- 1598-6438
- Abstract
- Electrokinetic technology was applied to remediate Cu, Pb and As-contaminated paddy soil. Removal of metal is highly dependent on the processing fluid during electrokinetic treatment. Tap water, NaOH, HNO3, Na2EDTA, and citric acid were evaluated as the processing fluids to enhance metal removal. Cu and Pb were transported toward cathode, however, it did not removed from soil section, while 56.6% of As was removed at a acidic condition. The strong acidic condition with nitric acid as a processing fluid enhanced the desoprtion of As from soil surface. However, longer operation time is needed to get the higher removal of Cu and Pb, and the acidification of soil after electrokinetic treatment should be solved.
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