Efficient integrated sewage treatment equipment

Abstract

The invention provides efficient integrated sewage treatment equipment. The efficient integrated sewage treatment equipment comprises an anaerobic zone, an anoxic zone, an aerobic zone and a sedimentation zone which are communicated in sequence, and further comprises a nitrification liquid return mechanism, a sludge return mechanism and a gas stripping device, wherein the nitrification liquid return mechanism is used for returning a mixed liquid in the aerobic zone to the anoxic zone; the sludge return mechanism is used for mixing sludge returned to the sedimentation zone with sewage in a water inlet pipe, and then guiding the mixture to flow into the anaerobic zone; the nitrification liquid return mechanism comprises a mixed liquid return gas stripping zone communicated with a return opening in the aerobic zone; the sludge return mechanism comprises a sludge return gas stripping zone communicated with a sludge discharge opening in the sedimentation zone; the gas stripping device is used for lifting a mixed liquid in the mixed liquid return gas stripping zone to climb over a corresponding partition to return to the anoxic zone, and lifting sludge in the sludge return gas stripping zone to climb over a corresponding partition to be mixed with incoming water by aeration. Therefore, the transportation through pipelines or ditches is not needed, the problem of blockage caused by sediments in the pipelines is solved, and then the efficient integrated sewage treatment equipment is more convenient and rapid in operation management.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an efficient and integrated integrated sewage treatment device. Background technique [0002] With the development of my country's economy and society, the crisis of water resources and the pollution of the water environment are intensifying, and the discharge of various sewage / wastewater has increased significantly, which seriously threatens the water environment. The treatment of water pollution has become one of the hot spots in the field of environmental protection at home and abroad. The sewage treatment mode is divided into centralized treatment mode and decentralized treatment mode. Among them, the urban sewage treatment basically adopts the centralized treatment mode. However, combined with the characteristics of scattered pollution sources of rural domestic sewage, complex terrain, imperfect pipe network coverage, and unstable water volume, etc., Therefore, it i...

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the technical defect that the sludge sedimentation of the integrated sewage treatment device in the prior art causes poor backflow effect, and provide an efficient and integrated integrated sewage treatment device with good backflow effect

Images