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Title: Potential production of biosurfactants under electric field supplied to clayey soil

Abstract

The possibility of the introduction of nutrients and bacteria into clayey soil using electrokinetic methodology makes bioremediation more popular. However, biodegradation of polynuclear aromatic hydrocarbons (PAHs) is limited by their low solubility. The potential production of biosurfactants in clayey soil under the electric field was presented in this study. The electrokinetic cell tests were carried out to investigate the production of biosurfactants in the contaminated soil and soil without contaminants. The results showed that there was 1.5 times higher production in the soil contaminated by phenanthrene than that without it. In the middle of the electrokinetic cell, there are more biosurfactants produced than at the anode and the cathode areas. It was observed that there was migration of micelles with the electromigration and electroosmosis. In spite of the anionic properties of biosurfactant, the movement of the micelle was only partially directed to the anode. It was also observed that the electroosmosic flow transported micelles to the cathode. The results suggested the possibility of production of biosurfactants under the electric field and uniform distribution in the subsoil. The results could find a direct applicability in the enhanced remediation of PAH-contaminated sites.

Authors:
;
Publication Date:
Research Org.:
Concordia Univ., Montreal, Quebec (CA)
OSTI Identifier:
20014803
Resource Type:
Conference
Resource Relation:
Conference: ASCE-CSCE 1999 National Conference on Environmental Engineering, Norfolk, VA (US), 07/25/1999--07/28/1999; Other Information: PBD: 1999; Related Information: In: Environmental engineering 1999, by Schafran, G.C. [ed.], 936 pages.
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; SOILS; REMEDIAL ACTION; POLYCYCLIC AROMATIC HYDROCARBONS; BIODEGRADATION; ELECTROLYSIS; SURFACTANTS; IN-SITU PROCESSING

Citation Formats

Ju, L, and Elektorowicz, M. Potential production of biosurfactants under electric field supplied to clayey soil. United States: N. p., 1999. Web.
Ju, L, & Elektorowicz, M. Potential production of biosurfactants under electric field supplied to clayey soil. United States.
Ju, L, and Elektorowicz, M. 1999. "Potential production of biosurfactants under electric field supplied to clayey soil". United States.
@article{osti_20014803,
title = {Potential production of biosurfactants under electric field supplied to clayey soil},
author = {Ju, L and Elektorowicz, M},
abstractNote = {The possibility of the introduction of nutrients and bacteria into clayey soil using electrokinetic methodology makes bioremediation more popular. However, biodegradation of polynuclear aromatic hydrocarbons (PAHs) is limited by their low solubility. The potential production of biosurfactants in clayey soil under the electric field was presented in this study. The electrokinetic cell tests were carried out to investigate the production of biosurfactants in the contaminated soil and soil without contaminants. The results showed that there was 1.5 times higher production in the soil contaminated by phenanthrene than that without it. In the middle of the electrokinetic cell, there are more biosurfactants produced than at the anode and the cathode areas. It was observed that there was migration of micelles with the electromigration and electroosmosis. In spite of the anionic properties of biosurfactant, the movement of the micelle was only partially directed to the anode. It was also observed that the electroosmosic flow transported micelles to the cathode. The results suggested the possibility of production of biosurfactants under the electric field and uniform distribution in the subsoil. The results could find a direct applicability in the enhanced remediation of PAH-contaminated sites.},
doi = {},
url = {https://www.osti.gov/biblio/20014803}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jul 01 00:00:00 EDT 1999},
month = {Thu Jul 01 00:00:00 EDT 1999}
}

Conference:
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