Abstract
Kinetic data from batch tests were successfully used to predict the performance of continuously stirred tank reactor (CSTR) systems for treating multicomponent industrial wastewater. Data from both batch and continuous tests validated the multiple zero order (MZO) approach for evaluating CSTR systems and should prove valuable in designing full-scale continuous flow treatment processes.Treatability studies were conducted on three industrial wastewaters and one synthetic wastewater. The MZO approach consistently predicted values for effluent concentrations in appreciably closer agreement with experimental results than those predicted by means of nth-order true chemical reaction.Evaluating the continuous process should include a correction for biomass activity if the solids retention time (SRT) of the biomass in the CSTR is found to be appreciably different from that of the batch reactor. This correction is necessary to account for the effect of the change in biomass activity resulting from different SRT on the magnitude of the biodegradation rate coefficient.
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