New citation:
National Technical University of Ukraine «Kyiv Polytechnic Institute» cited Lomonosov Moscow State University;
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Previously published research**
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Volodymyr
Rossinskyi
Department of Ecobiotechnology
and Bioenergy,
National Technical University of Ukraine «Kyiv Polytechnic Institute» cited Lomonosov Moscow State University;
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Research citing: Biological Effects of Surfactants: https://www.researchgate.net/publication/200637626; (environmental hazards of detergents, non-animal methods, to...);
https://5bio5.blogspot.com/2018/06/new-c.html
Украина, цитирование, Россия,Previously published research
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Volodymyr
Rossinskyi
Department of Ecobiotechnology
and Bioenergy,
National Technical University of Ukraine «Kyiv Polytechnic Institute» , 37, Prospect Peremohy, 03056, Kyiv-56, Ukraine ;
Abstract.
The biological wastewater treatment technologies in anoxic and aerobic bioreactors with recycle of sludge mixt ure are used for the effective removal of organic compounds from wastewater . The change rate of sludge mixture recirculation between bioreactors leads to a change and redistribution of concentrations of organic compounds in sludge mixture in bioreactors an d change hydrodynamic regimes in bioreactors. Determination of the coefficient of internal recirculation of sludge mixture between bioreactors is important for the choice of technological parameters of biological treatment (wastewater treatment duration in anoxic and aerobic bioreactors, flow capacity of recirculation pumps). Determination of the coefficient of internal recirculation of sludge mixture requires integrated consideration of hydrodynamic parameter (flow rate), kinetic parameter (rate of oxidati on of organic compounds) and physical -chemical parameter of wastewater (concentration of organic compounds). The conducted numerical experiment from the proposed mathematical equations allowed to obtain analytical dependences of the coefficient of internal recirculation sludge mixture between bioreactors on the concentration of organic compounds in wastewater, the duration of wastewater treatment in bioreactors. 1 Introduction The biological oxygen demands (BOD 5 ) in municipal wastewater usually are 100 - 300 mgО 2 /l. The municipal wastewater usually contains suspended solids 147.3 -468.2 mg/l, phosphor compounds 0.2 -15.8 mg/l, nitrogen compounds 13.2 -63.7 mg/l, synthetic detergents 8 -25 mg/l [ 1, 2]. Synthetic detergents as amphiphilic xenobiotics, have a negative impact on the process of oxidation of organic compounds in units for biological wastewater treatment through localization substrate, dispersing the sludge, breach of oxygen regime and inhibition of ;
* Corresponding author: wrossin@live.com © The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/). E3S Web of Conferences 30 , 02002 (2018) https://doi.org/10.1051/e3sconf/20183002002 ;
Water, Wastewater and Energy in Smart Cities ;
Define of internal recirculation coefficient for biological wastewater treatment in anoxic and aerobic bioreactors. Available from: https://www.researchgate.net/publication/322954508_Define_of_internal_recirculation_coefficient_for_biological_wastewater_treatment_in_anoxic_and_aerobic_bioreactors [accessed Jun 27 2018]. **