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Applicability of Batch Test Data for Industrial Wastewater Continuous Flow Process Design

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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.

Keywords: ACTIVATED SLUDGE; BATCH TESTS; CONTINUOUS FLOW REACTOR; KINETICS; MULTIPLE ZERO ORDER

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/106143000X137572

Publication date: May 1, 2000

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  • Water Environment Research® (WER®) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
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