Sewage pretreatment device with slag-removal, coupling and air-driving biological rotating disc integrated structure

Abstract

The invention relates to a sewage pretreatment device with a slag-removal, coupling and air-driving biological rotating disc integrated structure. The sewage pretreatment device comprises a sewage draining pipeline and a sewage treatment pool. The sewage pretreatment device is characterized in that a partition wall I is arranged in the sewage treatment pool to divide the sewage treatment pool into a slag removal treatment pool and a biological treatment pool from front to back; a water passage I is arranged in the partition wall I, a grid is arranged at the water passage I, and the slag removal treatment pool is communicated with the biological treatment pool through the water passage I; an air-supplanting and oxygen-supplying pipeline and a biological rotating disc are arranged in the biological treatment pool, an air outlet of the air-supplanting and oxygen-supplying pipeline faces to the biological rotating disc, an air inlet of the air-supplanting and oxygen-supplying pipeline is communicated with atmosphere to generate atmospheric pressure difference to drive the biological rotating disc to rotate, and therefore, the biological rotating disc integrated structure with the slag removal, coupling and air driving functions is configured. The sewage pretreatment device is small in occupied area and can be used for effectively separating impurities in sewage and carrying out bio-enzyme catalysis.

Description

technical field [0001] The invention relates to a sewage pretreatment device with an integrated structure of slag cleaning coupling air-driven biological turntable, which is suitable for pretreatment of small and medium-sized domestic sewage. It belongs to the technical field of sewage treatment equipment. Background technique [0002] At present, primary sewage treatment is the most basic sewage treatment method. It is generally used to treat sewage with a low degree of pollution, and can also be used as pretreatment before entering the biochemical treatment system. The principle of this method is simple, and it also has a certain removal effect on suspended solids and COD in water, and is widely used in water treatment. In view of the fact that domestic sewage generally does not contain toxic substances and is suitable for the growth and reproduction of various microorganisms, how to supplement the primary treatment with biological treatment methods as the pretreatment of...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, some people try to use a sewage pretreatment device with a biological turntable to carry out biological pretreatment of sewage. Although it can achieve certain effects, it adopts an open distribution setting, consisting of a grid tank, a sedimentation tank, and a biological turntable. They are distributed in different positions and connected by pipelines, which have defects such as large floor area, complex overall structure, unreasonable structure of the biological turntable, poor slag separation performance, easy blockage, troublesome slag removal, and poor sewage treatment effect.

Images