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USING BIOCHEMICAL METHODS IN MODERN TREATMENT TECHNOLOGIES OF UNDERGROUND WATER »« ANALYSIS OF THE WORK OF MULTI-STAGE PROCESS PLANT AFTER-TREATMENT OF TAP WATER IN THE EXISTING PRODUCTION AND WAYS OF ITS IMPROVEMENT

NEW IMPROVED STRUCTURAL SOLUTION DEVICES BIOLOGICAL WASTEWATER TREATMENT

UDC 628.356.39

I.V. Klymenko, A.V. Ivanchenko, M.D. Voloshyn

Dneprodzerzhinsk State Technical University, Dneprodzerzhinsk

e-mail: iren.klimencko@yandex.ru

Indicated urgency of modernizing existing municipal wastewater treatment plants in connection with reduction of volumes wastewater discharged by the population of Ukraine. It is shown that the biological method is preferred for most treatment plants. The aim of this work is to improve existing devices for biological treatment of municipal wastewater for use in reducing the volume of wastewater supplied to the population. Analyzed the classical scheme of biological wastewater treatment according to which the residence time of wastewater in the primary and secondary sedimentation tanks exceeds the design value by more than 3 times, and in aeration tanks in 2,7. Developed and presented new design of the combined aerotank-settler the special feature which is compactness and possibility of use for small volumes of wastewater. Offered an improved technology of biological wastewater treatment using aerotank-settler which is recommended for most municipal treatment plants of Ukraine.

Keywords: wastewater, biological treatment, activated sludge, aerotank-settler.

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06.05.2016 at 4:21 pm