FIELD: biological purification of household sewage and similar by composition industrial sewage.
SUBSTANCE: the invention is pertaining to the field of biological purification of household sewage and similar by composition industrial sewage from organic and nitrogen compounds. The installation consists of: a body; located in it a chamber of aeration with aerators placed at the bottom of the body; chambers of anaerobic treatment - denitrification equipped with a tool for microorganisms immobilization; a chamber of clarification; devices for feeding of the water subjected to purification. Each of the lateral mirror-located chambers of anaerobic treatment - denitrification is formed by a lateral wall of the installation body and the external wall of the aeration chamber furnished with a guiding inclined partition mounted with a gap in relation to the bottom of the body. The installation is additionally equipped with chambers of degassing and a vertical chamber of aerobic oxidation built in the chamber of aeration. At that each chambers of degassing is located above a chamber of denitrification is fused with it and furnished with a distributing chute of being purified sewage and overflow windows. The vertical chamber of oxidation is equipped at a foundation with the counter inclined partitions mounted with a gap in relation to the bottom of the body and overflow windows in each of the walls and located opposite to the overflow windows of the degassing cameras. At that the ratio of the areas of the overflow windows of the degassing chamber and the chamber of anaerobic oxidation makes no less than 1:4 accordingly. The axial chamber of clarification is made in the form of a cone coupled with a pipeline and a collecting chute for separation of the purified water, and a device for withdrawal of a redundant active sludge is placed in the upper part of the chamber of aerobic oxidation. The installation may be equipped with several axial chambers of clarification. The technical result is an increased degree of purification from nitrogen compounds simplification and reduction in price of the installation.
EFFECT: the invention ensures an increased degree of purification from nitrogen compounds, simplification and reduction in price of the installation.
2 cl, 1 dwg
