ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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12
Issue
vol 64 / December, 2021
Article

DOI 10.17586/0021-3454-2015-58-9-732-737

UDC 681.54

DYNAMIC MODELS OF THE CONTROLLED BIOCHEMICAL PROCESSES OF WASTEWATER TREATMENT

E. K. Grudyaeva
ETU "LETI", Department of Automation and Control Processes; Post-Graduate Student


S. E. Dushin
ETU "LETI", Department of Automation and Control Processes; Professor


N. N. Kuzmin
ETU "LETI", Department of Automation and Control Processes; Professor


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Abstract. Nonlinear dynamic models of nitrification and denitrification processes in the bioreactor with the corresponding zones and the controlled recirculation contour are presented. The models are based on ASM1 model proposed by Henze to describe the microbiological processes in active sludge that involve removal of nitrogen compounds from wastewater, change of alkalinity, concentration of soluble substratum and inert compounds, as well as bacteria populations. Graphs of transient processes obtained with computer modeling are demonstrated.
Keywords: wastewater treatment, three-zone bioreactor, active sludge, nitrification, denitrification, control