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ELECTROKINETIC REMEDIATION STUDY FOR CADMIUM CONTAMINATED SOIL

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Author(s): R. K. Srivastava | R. P. Tiwari | P. Bala Ramudu

Journal: Iranian Journal of Environmental Health Science & Engineering
ISSN 1735-1979

Volume: 4;
Issue: 4;
Start page: 207;
Date: 2007;
Original page

Keywords: Ammonium citrate | electrokinetic remediation

ABSTRACT
This paper presents the results of an experimental research undertaken to evaluate different purging solutions to enhance the removal of cadmium from spiked contaminated field soil by electrokinetic remediation. Three experiments were conducted when soil was saturated with deionised water and subsequently deionised water, ammonium citrate and sodium citrate were used as purging solutions at anode end. One experiment was conducted when the soil was saturated with ammonium citrate and itself was used as the purging solution. Results showed that 49% reduction of cadmium concentration was achieved in the case of soil saturated (washed) with ammonium citrate as well as purging solution also was ammonium citrate. The soil pH and washing solutions were the most important factors in controlling the removal of cadmium in electrokinetic remediation process.

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