Combined type biological rotating disc sewage treatment device

Abstract

The invention relates to a combined type biological rotating disc sewage treatment device, and belongs to the field of biological sewage treatment devices. The combined type biological rotating disc sewage treatment device comprises a sewage pool, a settling pond, a water inlet tube, a biological rotating disc and a sterilizer, wherein the water inlet tube is arranged on one side of the sewage pool; biological zones are arranged inside the sewage pool; the biological rotating disc is mounted above the biological zones; the settling pond is arranged on the other side of the sewage pool; a dosing tank is arranged between the settling pond and the sewage pool. As the biological zones are combined with the biological rotating disc and are longitudinally distributed inside one pool body, relatively high microorganism concentration inside the sewage pool is maintained, the volumetric load is greatly increased, the combined type biological rotating disc sewage treatment device is relatively efficient and stable, the problems that a conventional biological rotating disc reactor is low in organic load, poor in treatment effect, poor in denitrification effect, low in oxygen utilization rate and poor in dephosphorization effect. Compared with a conventional biological zone biological contact oxidation method, the combined type biological rotating disc sewage treatment device disclosed by the invention needs aeration oxygen supply, and the operation cost is greatly reduced due to a rotation oxygen supply mode of rotating disc pieces of the treatment device.

Description

technical field [0001] The invention relates to a combined biological turntable sewage treatment device, which belongs to the field of biological sewage treatment devices. Background technique [0002] The biological turntable is a sewage biological treatment equipment that appeared in the 1960s. It is a biofilm wastewater treatment technology. Microorganisms with a long growth cycle can be attached to the biological disc, which has strong impact load resistance and good treatment effect. . In terms of process operation and maintenance, the biological turntable has the advantages of no need for sludge reflux, no expansion of filamentous bacteria, low power consumption, and low operating costs. However, the traditional biological turntable has problems such as low organic load, poor sanitary conditions, and poor nitrogen removal effect in the sewage treatment process. [0003] The current biological turntables generally solve the problem of unsatisfactory denitrification by...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a combination of low energy consumption and high efficiency to solve the problems of low organic load, low treatment effect, poor denitrification effect, low oxygen utilization rate and poor phosphorus removal effect of existing biological turntable reactors. Type biological turntable sewage treatment device

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