Rural sewage treatment device and method

Abstract

The invention relates to a rural sewage treatment device and method. Two partition plates in a tank body divide the tank body into a first grid groove, a second grid groove and a third grid groove, wherein the first grid groove is divided into a sedimentation tank, a first filtration tank and an anaerobic area; the second grid groove is divided into a first aerobic area; the third grid groove is divided into a second aerobic area, a phosphorus-removing tank and a second filtration tank; sewage settles firstly in the sedimentation tank and is filtered in the first filtration tank, and then theremoval of COD, ammonia nitrogen and organic phosphorus in sewage is realized by the first aerobic area; then, the sewage is subjected to deamination treatment in the anaerobic area, afterwards, the COD and a redundant carbon source are removed in the second aerobic area, phosphorus in the sewage is removed by the phosphorus-removing tank, finally, the sewage is filtered by the second filtration tank and then discharged, the successive settling, filtering, aerobic, anaerobic, aerobic, phosphorus-moving and filtering treatments of the sewage are realized, which guarantees that rural domestic sewage is connverted into a qualified water source and discharged, and the pollution and damage to surrounding soil environment and air environment are avoided.

Description

technical field [0001] The present invention relates to a rural sewage treatment device and method, more specifically, to a rural sewage treatment device which can successively carry out sedimentation, filtration, aerobic, anaerobic, aerobic, phosphorus removal and filtration treatment on sewage and method. Background technique [0002] my country has a vast rural area, and rural sewage treatment is an urgent problem that needs to be solved at present. Most of the domestic sewage is untreated and discharged randomly, resulting in dark and smelly water in ditches and ponds, and mosquito breeding, which seriously affects the living environment and health of residents. At the same time, it will cause pollution of drinking water sources and eutrophication of lakes and rivers. The decentralized treatment mode of rural domestic sewage is an important part of rural water environment governance. The treatment of scattered sewage in rural areas or with small amounts of water must fo...

AI Technical Summary

Problems solved by technology

[0003] Considering that the distribution of rural sewage is obviously dispersed, it is not easy to transport it to the same place and collect it, so it is not easy to adopt centralized sewage treatment

Images