INDIGO Home University of Illinois at Urbana-Champaign logo uic building uic pavilion uic student center

Electrokinetic Remediation of Chlorinated Aromatic and Nitroaromatic Organic Contaminants in Clay Soil

Show simple item record

Bookmark or cite this item: http://hdl.handle.net/10027/8245

Files in this item

File Description Format
PDF electrokinetic.pdf (792KB) (no description provided) PDF
Title: Electrokinetic Remediation of Chlorinated Aromatic and Nitroaromatic Organic Contaminants in Clay Soil
Author(s): Reddy, Krishna R.; Darko-Kagya, Kenneth; Al-Hamdan, Ashraf Z.
Subject(s): electrokinetics clay remediation chlorinated organic contaminant nitroaromatic contaminant reductive process
Abstract: This article presents a bench-scale experimental study performed to investigate the remediation of low permeability clay soil contaminated with pentachlorophenol (PCP), Lindane, and dinitrotoluene (DNT) using electrokinetic technique. Three bench-scale electrokinetic experiments were conducted on kaolin soil. In each test, the soil was spiked with one of the following contaminants: PCP, Lindane, and DNT at target concentrations of 100, 500, and 1,000mg/kg, respectively. The applied voltage gradient across the soil in each test was 1 volt direct current (VDC)/cm for about 500 h. Extent of PCP, DNT, and Lindane destruction in the soil as a result of electrokinetics was ascertained. The study demonstrated that degradation of PCP, DNT, and Lindane occurred during electrokinetics without using any solubilizing or reducing agents in the flushing solution. Results showed that PCP, DNT, and Lindane were degraded by a direct electrochemical reductive process at the electrodes. Contaminant degradation across the soil ranged from 40% to 95%, 28% to 80%, and 26% to 60% for PCP, Lindane, and DNT, respectively. The effectiveness of the electrochemical reduction of the contaminant during electrokinetics depended on the contaminant solubility and soil pH. Overall, this study demonstrated that electrokinetic technology has the potential to remediate chlorinated aromatic and nitroaromatic contaminants in low permeability soils by the direct reductive process.
Issue Date: 2011-06
Publisher: Mary Ann Liebert
Citation Info: Reddy, K. R., Darko-Kagya, K., & Al-Hamdan, A. Z. 2011. Electrokinetic Remediation of Chlorinated Aromatic and Nitroaromatic Organic Contaminants in Clay Soil. Environmental Engineering Science, 28(6): 405-413. DOI: 10.1089/ees.2010.0235
Type: Article
Description: This is a copy of an article published in Environment Engineering Science © 2011 copyright Mary Ann Liebert, Inc.; Environmental Engineering Science is available online at: http://www.liebertonline.com.
URI: http://hdl.handle.net/10027/8245
ISSN: 1092-8758
Date Available in INDIGO: 2012-03-21
 

This item appears in the following Collection(s)

Show simple item record

Statistics

Country Code Views
United States of America 119
China 23
United Kingdom 10
Netherlands 3
Hong Kong 1

Browse

My Account

Information

Access Key