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Treatment of trace organic compounds by ozone--biological activated carbon for wastewater reuse: The Lake Arrowhead pilot plant

ABSTRACT: Organic and trace organic performance data for preozonation and biological activated carbon (BAC) filtration of the Lake Arrowhead, California, water reclamation pilot plant secondary effluent were analyzed to determine treatment efficiency of these processes in a potable water reuse project. Five types of organic analysis were performed: dissolved organic carbon (DOC), UV at 254 nm (UV-- 254), ultimate soluble biochemical oxygen demand (SBOD^sub u^), baseneutral analysis (BNA), and specific aldehyde analyses.

Preozonation favored the breakdown of high-molecular-weight organic matter (>1000 daltons [Da), measured as DOC, to biodegradable organic compounds, measured as an ...

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