Low concentration domestic sewage treatment system combined with landscape

Abstract

The present invention provides a domestic sewage treating system having lower concentration combined with landscape, mainly including a primary filtering device, an inclined clarifier and a primary aerobic aeration tank, the back of the primary aerobic aeration tank is connected to a community wetland biological landscape facility, the community wetland biological landscape has an aeration plant. Since the invention has a reasonable wholly treatment scheme, most particulate matter is removed by primary filtering and inclined sedimentation, the most important part for pollution is eliminated, then not only eliminates residual BOD and COD in the polluted water via primary aerobic aeration tank, but also effectively enhances oxvgen content of the sewage in wetland biological landscape, beneficial to further aerobic treat in the wetland biological landscape, thus the purification efficiency is enhanced, and treatment efficiency s also enhanced, draining water is used as water for maintenance landscape via treatment, realizes water recycling, and also ensures water retention capacity of the wetland biological landscape, reduces maintenance cost, in addition, investment and floor space are saved because the increased equipment has a lower purifying degree.

Description

technical field [0001] The invention relates to a low-concentration domestic sewage treatment system combined with landscape, belonging to the technical field of environmental protection. Background technique [0002] With the application of separate collection and discharge of domestic sewage sources, domestic sewage will be divided into two categories. One is high-concentration domestic sewage from toilets. The main source of pollutants is toilets. This kind of sewage has a high concentration. It requires a special treatment system for treatment. The other type is general biochemical sewage, which is characterized by low pollution concentration and can reach the standard of reclaimed water reuse after simple treatment. The current miniaturized domestic sewage treatment system is aimed at the current There is mixed collection and discharge of domestic sewage. The concentration of this mixed domestic sewage is between the source-separated high-concentration domestic sewage a...

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Problems solved by technology

[0002] With the application of separate collection and discharge of domestic sewage sources, domestic sewage will be divided into two categories. One is high-concentration domestic sewage from toilets. The main source of pollutants is toilets. This kind of sewage has a high concentration. It requires a special treatment system for treatment. The other type is general biochemical sewage, which is characterized by low pollution concentration and can reach the standard of reclaimed water reuse after simple treatment. The current miniaturized domestic sewage treatment system is aimed at the current There is mixed collection and discharge of domestic sewage. The concentration of this mixed domestic sewage is between the source-separated high-concentration domestic sewage and low-concentration domestic sewage. It is not suitable for the treatment of low-concentration domestic sewage from an economic point of view, and because of its Most of them are based on civil structure, with large amount of civil works, large area and large investment

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