Simulation of municipal-industrial full scale WWTP in an arid climate by application of ASM3

Author:

Elawwad Abdelsalam1,Zaghloul Mohamed1,Abdel-Halim Hisham1

Affiliation:

1. Department of Environmental Engineering, Cairo University, Giza, Egypt

Abstract

In developing countries, and due to the high cost of treatment of industrial wastewater, municipal wastewater treatment facilities usually receive a mixture of municipal wastewater and partially treated industrial wastewater. As a result, an increased potential for shock loads with high pollutant concentrations is expected. The use of mathematical modelling of wastewater treatment is highly efficient in such cases. A dynamic model based on activated sludge model no. 3 (ASM3) describing the performance of the activated sludge process at a full scale wastewater treatment plant (WWTP) receiving mixed domestic–industrial wastewater located in an arid area is presented. ASM3 was extended by adding the Arrhenius equation to respond to changes in temperature. BioWin software V.4 was used as the model platform. The model was calibrated under steady-state conditions, adjusting only three kinetic and stoichiometric parameters: maximum heterotrophic growth rate (μH = 8 d−1), heterotrophic aerobic decay rate (bH, O2 = 0.18 d−1), and aerobic heterotrophic yield (YH,O2 = 0.4 (gCOD/gCOD)). ASM3 was successful in predicting the WWTP performance, as the model was validated with 10 months of routine daily measurements. ASM3 extended with the Arrhenius equation could be helpful in the design and operation of WWTPs with mixed municipal–industrial influent in arid areas.

Publisher

IWA Publishing

Subject

Filtration and Separation,Water Science and Technology

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4. Henze M. Grady C. P. L. Gujer W. Marais G. V. R. Matsuo T. 1987 Activated Sludge Model No. 1, IAWPRC Scientific and Technical Report No.1. International Association on Water Pollution Research and Control, London, UK.

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