Biodegradation of dichloromethane in a granular activated carbon fluidized-bed reactor
Abstract:A biological fluidized-bed reactor (FBR) containing biomass attached to granular activated carbon (GAC) was investigated for the treatment of aqueous-phase dichloromethane (DCM). The system was directly inoculated with fresh biomass solids collected from a General Electric Plastics wastewater treatment facility, located in Mount Vernon, Indiana. The biomass consumed DCM as its sole carbon and energy source following an acclimation period of approximately 8 days. Dichloromethane biodegradation rates in excess of 40 kg/m3 · d were achieved during continuous operation, with no detectable DCM (<1 mg/L) in the process effluent. Steady-state data were collected to enable process scale-up. This study confirmed that the biological GAC FBR is an environmentally acceptable waste treatment configuration for the destruction of aqueous-phase DCM.
Document Type: Research Article
Publication date: January 1, 1998
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