MSA for VOC Removal

by Craig W. Lichty, (M.ASCE), Project Mgr.; Kennedy/Jenks Consultants, 3585 Maple St., Suite 226, Ventura, CA,
Joseph A. Drago, (M.ASCE), Process Specialist; Kennedy/Jenks Consultants, 3585 Maple St., Suite 226, Ventura, CA,

Serial Information: Civil Engineering—ASCE, 1993, Vol. 63, Issue 3, Pg. 66-67

Document Type: Feature article


In what may be the first large-scale application of its type, mechanical surface aeration�usually used in wastewater treatment�is removing volatile organic compounds from potable ground water. Discovery of trace amounts of volatile organic compounds (VOCs) in Santa Monica, Calif.'s municial water wells prompted a search for a cost-effective way to restore the lost ground-water resources. Expansion of the Arcadian Water Treatment Plant included treatment for the VOC trichlorethylene, an industrial solvent and suspected carcinogen. A common solution would have been air stripping, using packed tower aeration, but a sensitive urban site led engineers to a different approach. They used mechanical surface aeration (MSA) technology, which allowed the aeration process to be hidden within an existing 5 million gal. reservoir.

Subject Headings: Volatile organic compounds | Water treatment plants | Aeration | Stripping (chemical) | Wells (water) | Water resources | Water reclamation

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