Microbial reduction of perchlorate in pure and mixed culture packed-bed bioreactors

摘要

Perchlorate (CLO_4) has been detected in a large number of surface and ground waters in the US. Due to health concerns of perchlorate in drinking water, the California Department of Health Services has Established a provisional action level of 18 μg/L. Several microbial isolates have been obtained capable of Microbiological perchlorate reduction through cell respiration, but few of these have been tested for Perchlorate removals to these low levels. The feasibility of using one isolate (IK) for water treatment was Tested in a packed-bed bioreactor by comparing minimum detention times necessary to achieve complete Removal of perchlorate.