Choice of the efficient flow diagram of biological wastewater treatment at municipal wastewater treatment plants

Date

2021-06-01

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Видавництво Львівської політехніки
Lviv Politechnic Publishing House

Abstract

The possibility of increasing the efficiency of municipal wastewater treatment plant (WWTP) operation by changing the flow diagram of biological wastewater treatment in aeration tanks at minimum expenses for their reconstruction is shown in the paper on the example of one of the regional centres of Ukraine. The technology of nitri-denitrification of wastewater according to the flow diagram of the two-stage modified Ludzak-Ettinger process is offered for the considered conditions. The distribution of wastewater flows and internal nitrate recycling between the individual stages of this flow diagram has been optimized in order to minimize the residual content of total nitrogen in the treated effluents. Computer dynamic modelling of biochemical processes has proved the high efficiency and reliability of the flow diagram proposed by the authors.

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Keywords

wastewater, biological treatment, aeration tanks, nitri-denitrification, flow diagram, Ludzak-Ettinger process

Citation

Protsenko S. Choice of the efficient flow diagram of biological wastewater treatment at municipal wastewater treatment plants / Serhii Protsenko, Mykola Kizyeyev, Olha Novytska // Environmental Problems. — Lviv : Lviv Politechnic Publishing House, 2021. — Vol 6. — No 4. — P. 244–250.

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