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: Aeration | Water treatment plants | Volatile organic compounds | Stripping (chemical) | Industrial wastes | Wastewater treatment | Water reclamation | Water resources

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