Sewage purification treatment system

Abstract

The invention discloses a sewage purification treatment system which comprises an integrated biological purifier and an enhanced phosphorus removal constructed wetland;the integrated biological purifier comprises an anaerobic tank, an anoxic tank, an aerobic tank and a sedimentation tank which are sequentially arranged along the water flow direction;biological fillers for growth and propagation ofmicroorganisms are arranged in the anaerobic tank, the anoxic tank and the aerobic tank; the enhanced phosphorus removal constructed wetlandcomprises a filter layer; a filter material is arranged inthe filter layer, the filter material comprises one or more of ceramsite, coal ash, steel slag and gravel;plants are planted on the filter layer; the sedimentation tank is connected with a water distribution pipe capable of conveying sewage on the upper layer of the sedimentation tank to the upper surface of the filter layer, a water collection pipe is arranged at the lower part of the filter layer, and water collection holes are formed in the water collection pipe. The sewage purification treatment system is high in sewage purification degree and beneficial to sewage recycling and reusing.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage purification treatment system. Background technique [0002] Due to the late start of ecological and environmental protection toilets, they are basically only used in urban public toilets and tourism, and are rarely used, while the penetration rate of sanitary toilets in rural areas is only 7.5%. Scattered dry toilet excrement tanks in the open air are likely to cause the surrounding environment to smell bad. Flies scurry around, seriously affecting the surrounding environment and the appearance of the countryside. [0003] Under the "toilet revolution" launched by the National Tourism Administration, cities in our country have greatly improved the construction and management of toilets. At present, the large-scale pattern of urban domestic sewage treatment in my country has gradually formed, and the policies and markets are relatively standardized. However, ab...

AI Technical Summary

Problems solved by technology

However, due to the lack of large-scale equipment like large-scale sewage treatment plants, the sewage treatment devices currently used in remote areas can only perform relatively simple treatment on the sewage discharged from septic tanks, purify the sewage to a certain extent, and remove some COD, BOD, nitrogen, phosphorus and other substances are then discharged, relying on the self-regulation ability of the natural environment to purify the sewage, and it is impossible to realize the recycling and reuse of sewage

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