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EVALUATION OF OZONATION BY-PRODUCTS FROM TWO CALIFORNIA SURFACE WATERS
Citation:
Glase, W., M. Koga, D. Cancila, M. McGuire, S. Liang, M. Davis, C. Tate, AND E. Aieta. EVALUATION OF OZONATION BY-PRODUCTS FROM TWO CALIFORNIA SURFACE WATERS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-89/518.
Description:
Ozonation by-products were analyzed for two surface water sources in Southern California--Los Angeles Aqueduct Water (LAAW) and State Project Water (SPW). ncluded are data obtained when LAAW was being treated at the Los Angeles Aqueduct Filtration Plant and similar data obtained during a two-day experiment in which the plant was treating SPW. ome batch-scale ozonation studies are also reported. zonation by-products were monitored using three methods: losed-loop stripping analysis, nonionic resin accumulation, and a direct aqueous derivatization method for low-molecular-weight aldehydes, each followed by gas chromatography-mass spectrometry analysis of the extracts. he major neutral by-products appear to be aliphatic aldehydes, but the levels are unexpectedly low in SPW compared with LAAW treated under similar conditions. ow levels of several other compounds were found in ozonated water, including bromoform and some compounds tentatively identified as ketones.