Format

Send to

Choose Destination
See comment in PubMed Commons below
J Hazard Mater. 2005 May 20;121(1-3):187-94.

The use of non-uniform electrokinetics to enhance in situ bioremediation of phenol-contaminated soil.

Author information

1
Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, PR China. lqs01@mails.tsinghua.edu.cn

Abstract

In situ bioremediation is an attractive and often cost-effective technology for the cleanup of organics-contaminated sites, but it often requires extended treatment time under field conditions. This study explored the feasibility of using non-uniform electrokinetic transport processes to enhance in situ bioremediation. A bench-scale non-uniform electrokinetic system with periodic polarity-reversal was developed for this purpose, and tested by using a sandy loam spiked with phenol as a model organic pollutant. The results demonstrated that non-uniform electrokinetic processes could accelerate the movement and in situ biodegradation of phenol in the soil. Bidirectional operation enhanced the phenol biodegradation more effectively than unidirectional operation. At the same time, a smaller polarity-reversing interval induced a higher and more uniform removal of phenol from the soil. The results also showed that reversing the polarity of electric field applied could maintain the soil pH and moisture, but it increased the consumption of electricity.

PMID:
15885421
DOI:
10.1016/j.jhazmat.2005.02.007
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Support Center