AWWA ACE59899

AWWA ACE59899 Fixed- and Fluidized-Bed Biological Treatment of Perchlorate-Laden Groundwater from the Saugus Aquifer
Conference Proceeding by American Water Works Association, 06/17/2004

Brown, Jess C.; Anderson, Ryan D.; McLean, Stephen J.; Min, Joon H.; Prasifka, David; Juby, Graham J.G.

More info

Full Description

The treatment and disposal of perchlorate-laden concentrates can often be complicated andcostly. Therefore, due to their ability to convert perchlorate to innocuous chloride and oxygen,biologically based processes may play an increasingly important role in the treatment of drinkingwater contaminated with perchlorate. A six-month pilot study at the Castaic Lake Water Agencyhas demonstrated that perchlorate-reducing biological reactors can be acclimated usingorganisms indigenous to the Saugus aquifer, that perchlorate can be removed to below detectionusing reasonable contact times, and that effluent water from these processes is of fairly highquality. Ultimately, the results of this project will be used to evaluate the feasibility and costsassociated with treating perchlorate-laden Saugus aquifer water using both fixed- and fluidized-bedbiological reactors.