A biological pool structure of a sewage treatment plant

Abstract

The invention discloses a biological pool structure of a sewage treatment plant, which mainly includes a biological pool body, in which a first anoxic section, an anaerobic section, a first aerobic section, a second anoxic section and a second aerobic section are sequentially arranged Section, the third anoxic section, the third aerobic section, one side of the biological pool is provided with a water inlet and distribution channel, and the other side is provided with a digestion liquid return channel, the first anoxic section, the anaerobic section, the second anoxic section, and the second There is a submersible flow propeller on each side of each baffle in the oxygen section and the third anoxic section, and a fixed aeration device is installed at the bottom of the first aerobic section, the second aerobic section and the third aerobic section. Wherein, the third anoxic section is also provided with a lift-type aeration device for converting it into an aerobic section. In the present invention, the third anoxic section can be switched between anoxic and aerobic by arranging aeration components in the third anoxic section, so as to meet the requirements of the A / O process and the AA / O process of the biological pool of the present invention. conversion between.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a biological pool structure of a sewage treatment plant. Background technique [0002] Water is the resource we rely on for our survival. Some areas of our country are poor in water resources, but the output of sewage in our country is increasing year by year; To improve the water environment in my country, the construction of sewage treatment plants is very important. Among them, the structural design of biological pools has attracted more and more researchers' attention. [0003] Biological pools usually include pools, fillers, water distribution devices, aeration devices, etc., usually including ordinary biological pools, high-load biological pools, tower biological pools and aerated biological pools. In the sewage treatment process, the biological reaction unit makes it The core, the quality of this part of the operation control is directly related to the operation o...

AI Technical Summary

Problems solved by technology

[0004] However, the structure of the traditional biological pool is often relatively single, and it is impossible to switch between different processes, and the aeration components installed in it are prone to clogging after long-term use, resulting in a decrease in aeration efficiency and quality. The conversion between A / O process and AA / O process and the biological pool structure that can enhance the anti-clogging of aeration components to solve the above problems

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