Biological membrane multistage reaction equipment

Abstract

The invention relates to biological membrane multistage reaction equipment which comprises a comprehensive integrated device and a vertical multistage biochemical device. The vertical multistage biochemical device comprises a precipitation tank and one or multiple biochemical tanks. Sewage sequentially enters the comprehensive integrated device, one or multiple biochemical tanks and the precipitation tank, and one or multiple biochemical tanks are serially or parallelly connected between the comprehensive integrated device and the precipitation tank. When multiple biochemical tanks are serially connected between the comprehensive integrated device and the precipitation tank, identical or different fillers are sequentially put into different biochemical tanks according to sewage treatment requirements, aerobic and anaerobic treatment can be performed on the sewage repeatedly, and alternate cycling of multistage nitration and denitrification is realized, so that nitrogen removal efficiency of a system is improved greatly, and finally discharged sewage can reach national standards of Class I B and Class I A; when the biochemical tanks are parallelly connected, a lot of sewage can be treated at the same time, so that sewage treatment scale and efficiency are improved greatly.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a biofilm multistage reaction equipment. Background technique [0002] With the rapid growth of my country's rural economy and the gradual improvement of the living standards of rural residents, the amount of domestic sewage in rural areas has increased significantly. According to estimates, the annual discharge of rural domestic sewage in the country is about 8 billion to 9 billion tons. The drainage of the village accounts for about 50% of the total drainage of the country. Compared with the increasing amount of sewage, the sewage treatment rate in rural areas is seriously lagging behind. According to statistics, the sewage treatment rate in rural areas is only 8%, and 96% of villages have no drainage channels and sewage treatment systems, and most of the sewage is directly discharged on the ground. Into the surrounding water and soil, causing pollution of rivers, pond...

AI Technical Summary

Problems solved by technology

Compared with the increasing amount of sewage, the sewage treatment rate in rural areas is seriously lagging behind. According to statistics, the sewage treatment rate in rural areas is only 8%, and 96% of villages have no drainage channels and sewage treatment systems, and most of the sewage is directly discharged on the ground. Into the surrounding water and soil, causing pollution of rivers, ponds and other water environment and soil environment, causing serious damage to the rural ecological environment, directly threatening the health of farmers and hindering the development of rural economy

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