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AWWA JAW23580
- Journal AWWA - Using GAC to Remove VOCs From Air Stripper Off-Gas
- Journal Article by American Water Works Association, 05/01/1988
- Publisher: AWWA
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This article focuses on the technical and economic feasibility of treating air stripper off-gas with granular activated carbon (GAC). For dichloroethene and trichloroethene, air stripping followed by offgas GAC treatment was shown to be very effective and economical compared with aqueous-phase GAC treatment, with GAC usage rates for gasphase adsorption being less than one-half those for aqueous-phase adsorption. Also, because gas-adsorption kinetics are much faster than liquid-phase kinetics, the required bed depth and diameter are much smaller for gas-phase beds. Steam regeneration was found to be ineffective for regeneration of gas-phase GAC at low concentrations. Includes 32 references, tables, figures.
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