Water Science and Technology Vol 36 No 2-3 pp 35–43 © IWA Publishing 1997
Impact of industrial discharge on the performance of a biological POTW - model development
Y. Argaman*, W. W. Eckenfelder** and A. J. O'Reilly***
*Millstone/St. Louis Chair in Environmental Engineering, Technion, Israel Institute of Technology Haifa 32000 Israel
**ECKENFELDER, Inc., 227 French Landing Drive Nashville, TN 37228 USA
***University of Teesside UK
ABSTRACT
This paper describes the development of a mathematical model and its application for predicting the dimensions of an industrial wastewater pretreatment system, and its comparison with alternative solutions. The model is based on pseudo first order kinetics for both the municipal and the industrial wastewater, and also on the Monod kinetics for the industrial wastewater. In the combined treatment process the biomass is taken as a mixture of specialist microorganisms capable of degrading target compounds. The kinetic rate of the combined stream is taken as the weighted average of the reciprocal K values. The model was used to compare the alternative treatment schemes and the main conclusions were: (1) pretreatment of industrial wastewater is always the most efficient alternative, and (2) an optimal VSS concentration exists in the pretreated effluent, leading to the most efficient treatment system. Experimental studies aimed at validation of this model are strongly recommended.
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