2005 CPEO Military List Archive

From: Lenny Siegel <lsiegel@cpeo.org>
Date: 27 Jul 2005 00:32:41 -0000
Reply: cpeo-military
Subject: [CPEO-MEF] Perchlorate biotreatment
[This important article on perchlorate treatment will probably only be available on line for a very short time. - LS]

Perchlorate Biodegradation for Water Treatment

Biological reactors currently treat nearly 30 million liters of perchlorate-contaminated groundwater per day, and in situ treatment techniques are now showing success at the field scale.

Paul B. Hatzinger, Shaw Environmental, Inc.
Environmental Science & Technology
June 1, 2005

Biological approaches for treating per-chlo-rate are proving to be highly effective and economically attractive. During the past several years, numerous laboratory and field pilot studies have evaluated different bioreactor designs and in situ techniques for cleaning perchlorate-contaminated groundwater and wastewater. On the basis of these evaluations, several full-scale biological treatment systems now operate in the United States. These systems remove perchlorate from waters with concentrations ranging from ~2 to >4000 mg/L to effluent levels <4 µg/L. This article summarizes the recent progress in perchlorate bioremediation.

For the entire article, go to

Lenny Siegel
Director, Center for Public Environmental Oversight
c/o PSC, 278-A Hope St., Mountain View, CA 94041
Voice: 650/961-8918 or 650/969-1545
Fax: 650/961-8918

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