| Simultaneous removal of organic contaminants and heavy metals from kaolin using an upward electrokinetic soil remediation process. | |
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MedLine Citation:
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PMID: 17110023 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Kaolins contaminated with heavy metals, Cu and Pb, and organic compounds, p-xylene and phenanthrene, were treated with an upward electrokinetic soil remediation (UESR) process. The effects of current density, cathode chamber flushing fluid, treatment duration, reactor size, and the type of contaminants under the vertical non-uniform electric field of UESR on the simultaneous removal of the heavy metals and organic contaminants were studied. The removal efficiencies of p-xylene and phenanthrene were higher in the experiments with cells of smaller diameter or larger height, and with distilled water flow in the cathode chamber. The removal efficiency of Cu and Pb were higher in the experiments with smaller diameter or shorter height cells and 0.01M HNO(3) solution as cathode chamber flow. In spite of different conditions for removal of heavy metals and organics, it is possible to use the upward electrokinetic soil remediation process for their simultaneous removal. Thus, in the experiments with duration of 6 days removal efficiencies of phenanthrene, p-xylene, Cu and Pb were 67%, 93%, 62% and 35%, respectively. The experiment demonstrated the feasibility of simultaneous removal of organic contaminants and heavy metals from kaolin using the upward electrokinetic soil remediation process. |
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Authors:
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Jing-Yuan Wang; Xiang-Jun Huang; Jimmy C M Kao; Olena Stabnikova |
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Publication Detail:
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Type: Journal Article Date: 2006-10-13 |
Journal Detail:
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Title: Journal of hazardous materials Volume: 144 ISSN: 0304-3894 ISO Abbreviation: J. Hazard. Mater. Publication Date: 2007 Jun |
Date Detail:
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Created Date: 2007-05-15 Completed Date: 2007-08-30 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9422688 Medline TA: J Hazard Mater Country: Netherlands |
Other Details:
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Languages: eng Pagination: 292-9 Citation Subset: IM |
Affiliation:
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School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore. jywang@ntu.edu.sg |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Copper
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chemistry* Electrochemistry Environmental Remediation / methods* Kaolin / chemistry Lead / chemistry* Phenanthrenes / chemistry* Soil Pollutants / chemistry* Xylenes / chemistry* |
| Chemical | |
Reg. No./Substance:
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0/Phenanthrenes; 0/Soil Pollutants; 0/Xylenes; 1332-58-7/Kaolin; 7439-92-1/Lead; 7440-50-8/Copper; 85-01-8/phenanthrene |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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