Practical Method to Extract and Dechlorinate PCBs in Soils
Publication: Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management
Volume 14, Issue 2
Abstract
In this paper some of the practical issues involved in the development and application of an extraction-photodegradation remediation technology for polychlorinated biphenyl (PCB) impacted weathered soils are addressed. The extraction of PCBs from weathered soils was investigated using the conventional Soxhlet extraction and by shake extraction using different solvents. The shake extraction has the potential for up-scaling to a field technology. The photodegradation of the extracted PCBs was investigated under direct ultraviolet light at 254 nm wavelength as well as under photosensitized light at 350 nm. The production of biphenyl, a by-product of the dechlorination of PCBs was investigated and it was found to degrade in the same ultraviolet system.
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Acknowledgments
The writers thank TransCanada Pipelines and NSERC for their financial support and additionally TransCanada for supplying the soil samples.NSERC
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Information & Authors
Information
Published In
Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management
Volume 14 • Issue 2 • April 2010
Pages: 98 - 103
Copyright
© 2010 ASCE.
History
Received: Jul 27, 2007
Accepted: Oct 2, 2009
Published online: Mar 15, 2010
Published in print: Apr 2010
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