Open AccessDomestic wastewater treatment facilities of small towns
Author(s) -
Tatyana Kedrova,
Liliya Khisameeva,
Runar Abitov
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/890/1/012152
Subject(s) - wastewater , environmental science , sewage treatment , turbidity , eutrophication , phosphorus , environmental chemistry , pulp and paper industry , environmental engineering , waste management , chemistry , nutrient , ecology , biology , engineering , organic chemistry
The urgency of biogenic elements removal is caused by ever-increasing degree of eutrophication of surface water, which increases the mass of phytoplankton, water turbidity, oxygen concentration in the upper water layers and reduces in thickness. To remove biogenic elements from wastewater, a method based on the use of bioreagents – chemical compounds of trace elements based on biologically active copolymers – is successfully implemented. This article presents the results of a survey of existing facilities of a biological wastewater treatment plant in a small locality. The survey revealed low efficiency of processes at the stage of biological purification, primarily with regard to the speed of biochemical processes, namely, the time-limited ability of dephosphotation, and as a result, a small withdrawal of total phosphorus at the stage of biological purification directly by active sludge microorganisms. In order to intensify the work of biological wastewater treatment facilities, an experiment was conducted on the use of bioreactor in real operation at these treatment facilities.