A sewage treatment device

Abstract

The invention discloses a sewage treatment device. The sewage treatment device comprises a grating pool, a hydrolysis acidification pool, a catalytic oxidation pool, an inclined tube settling pool anda membrane separation pool which are sequentially arranged from left to right, wherein a sewage inlet is formed in the left side of the grating pool, and two round steel gratings are arranged in thegrating pool. The sewage treatment device has the beneficial effects that a T-branch pipe I is communicated with four water through holes,respectively, and sewage can be separately treated, so that the blockage probability that an aeration pipe is blocked by the sewage is reduced; meanwhile, aeration balls are uniformly arranged in the aeration pipe, so that the aeration probability is increased;the aeration pipe is inflated by virtue of the aeration balls under the action of an air compressor, and pistons on the aeration pipes are pushed to realize expansion aeration, so that sufficient dissolved oxygen exists in the sewage, the working efficiency is high, and the usability is strong; and the sewage is further treated by virtue of the inclined tube settling pool and the membrane separation pool, so that nitrogen and phosphorus can be efficiently treated.

Description

technical field [0001] The invention relates to the field of environment, in particular to a sewage treatment device. Background technique [0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements of a certain water body for drainage or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering, etc., and it is also increasingly entering the daily life of ordinary people; the topic of water pollution is constantly being brought up , in order to arouse everyone's attention to the severity of water pollution, the awakening of the public's awareness of environmental protection, and the degree of concern about water pollution has reached an unprecedented level; especially the water pollution from chemical plants, which contains a large amount of nitrogen and phosphorus. The methods include nitrif...

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Problems solved by technology

Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering, etc., and it is also increasingly entering the daily life of ordinary people; the topic of water pollution is constantly being brought up , in order to arouse everyone's attention to the severity of water pollution, the awareness of environmental protection among the public has been awakened, and the degree of concern about water pollution has reached an unprecedented level; especially the water pollution problem from chemical plants, which contains a large amount of nitrogen and phosphorus. The methods include nitrification liquid circulation method, endogenous denitrification method and aeration method, most of which deal with pollution in a single way and have low working efficiency.

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