Abstract

A steady-state model for carbon oxidation and nitrogen removal suitable for the design of wastewater and sludge suspended growth and wastewater attached growth biological processes is proposed. The model is based on the WEF-ASCE model for combined BOD5 and nitrogen oxidation activated sludge processes. Kinetic and stoichiometric coefficients have been calibrated from data of municipal wastewater treatment plants. Results of model evaluation are presented through four case studies involving full-scale wastewater treatment plants. The case studies have been selected to show the model applicability to different scenarios: from simple small plant to complex large plant or from domestic influent wastewater to major industrial contributions.

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