Article | REF: W6500 V1

Dynamic modeling of biological water treatment processes

Authors: Mathieu SPÉRANDIO, Marc HERAN, Sylvie GILLOT

Publication date: August 10, 2007

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1. The situation

Dynamic simulation tools have grown considerably since the 90s. Simultaneous advances in scientific knowledge and IT tools have enabled the development of commercial products (platforms and numerical resolution software) for design offices, technical departments, researchers and operators.

Dynamic models have been created to predict changes in oxygen demand (aeration management), suspended solids and sludge production (extraction management), and treated water characteristics (COD, BOD, SS, VSS, nitrogen, phosphorus).

The use of these tools requires specific characterization of the wastewater, as well as a good understanding of the biological processes involved in purification. This information, together with the plant's physical, hydrodynamic and operating variables, is essential for parameterizing the models and obtaining an accurate prediction...

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