• AWWA JAW30422
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AWWA JAW30422

  • Journal AWWA - Formation and Removal of Assimilable Organic Carbon During Biological Treatment
  • Journal Article by American Water Works Association, 12/01/1991
  • Publisher: AWWA

$15.00$30.00


Within the last few years techniques have been developed to measure the easily biodegradable organic material (BOM) in drinking water. One way of expressing these measurements is as concentration of assimilable organic carbon (AOC). This article presents data obtained in a pilotplant study of biological treatment in Edmonton, Alta., using the van der Kooij AOC method. The pilot scale investigation focused on the formation and removal of BOM in a biological treatment process. The important operating variables evaluated were ozone dosage, filter and GAC hydraulic loading, and GAC contact time. Expected increases in AOC concentrations were seen following ozonation, but some inhibition was also observed. In the dual-media filters, lower hydraulic loading led to better AOC removals. AOC levels were generally quite low following granular activated carbon treatment. In the absence of broadly accepted criteria for AOC in finished water, several criteria were proposed and used to evaluate plant performance. Includes 20 references, tables, figures.

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