Distributed sewage coupling treatment method

Abstract

The invention discloses a distributed sewage coupling treatment method. In the distributed sewage coupling treatment method, an efficient biological purification tank, an MBR (Membrane Bio-reactor) pool, a carbon source sustained release area, a control room, an artificial wetland system, a disinfection tank and a water outlet area are adopted. The distributed sewage coupling treatment method is characterized in that sewage enters the efficient biological purification tank; the efficient biological purification tank comprises an anoxic zone, an anaerobic zone and an aerobic zone; the sewage issubjected to organic matter degeneration and removal of nitrogen and phosphorus nutrients through the anoxic zone-anaerobic zone-aerobic zone; suspended matters and organic matters in the sewage andthe chromaticity of the sewage are treated by an MBR area; one part of the sewage which is treated by the MBR area and is used as reflux liquid enters the anoxic zone in the efficient biological purification tank, and the other part of the sewage flows into the artificial wetland system with the carbon source sustained release area and performs deep nitrogen and phosphorus removal treatment; the sewage treated by the artificial wetland system flows into the disinfection tank, is subjected to sterilization treatment, then enters the water outlet area and flows out of the water outlet area. Thedistributed sewage coupling treatment method disclosed by the invention has the advantages of compact structure, small occupied area, high treatment efficiency and good effect; energy is saved; the distributed sewage coupling treatment method is suitable for distributed centralized treatment of the sewage.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a decentralized sewage coupling treatment method. Background technique [0002] Drinking water safety and domestic sewage treatment in rural areas are "difficult problems" that need to be overcome urgently to improve the living environment in rural areas. It is necessary to promote rural sewage treatment, solve the problem of farmers' drinking water safety, insist on equal emphasis on urban and rural environmental governance, coordinate rural drinking water safety, and improve water and toilets. According to data from the Ministry of Housing and Urban-Rural Development, the rural sewage treatment rate in my country was only 22% in 2016. Among them, more than 96% of the cities with municipalities in the country have built sewage treatment plants. Compared with cities, villages and towns, especially rural areas, mostly have scattered domestic sewage, lack of management and wanton d...

AI Technical Summary

Problems solved by technology

Among them, more than 96% of the cities with municipalities in the country have built sewage treatment plants. Compared with cities, towns, especially rural areas, mostly have scattered domestic sewage, which is difficult to collect due to lack of management and wanton discharge.

Images