A kind of urban sewage regeneration treatment device and its treatment method

Abstract

The invention relates to an urban sewage regeneration treatment device and a treatment method thereof, comprising a blast aeration system and a sewage treatment system; the blast aeration system includes a membrane air separator, an oxygen compression tank and a nitrogen compression tank; the sewage treatment system includes Oxygen refiner, ozone generator, aeration tank, sedimentation tank, aerobic denitrification tank, secondary settling tank, ozone contact tank; urban sewage passes through the aeration tank, sedimentation tank, aerobic denitrification tank connected in sequence through the water inlet pipe Nitrogen pool, secondary sedimentation tank, and ozone contact tank are treated to obtain regenerated water through the outlet pipe; the ozone generator is connected to the oxygen refiner and the ozone aeration plate at the bottom of the ozone contact tank through valves. The treatment device and treatment method have the advantages of simple structure, reasonable design, flexible and convenient operation, high treatment efficiency, high effluent quality, stable operation of the device, safety and reliability, and the like.

Description

technical field [0001] The invention relates to the technical field of urban sewage treatment, in particular to an urban sewage regeneration treatment device and a treatment method thereof. The device includes a high-load removal organic matter reactor, a short-path nitrification-anammox denitrification reactor and an ozone oxidation reactor. Oxygenation and mixing requirements of different reactors can be realized through air separation, which can be applied to urban sewage treatment, with simple process flow, flexible control operation and high effluent water quality. Background technique [0002] The most common process for urban sewage treatment is the activated sludge process. The traditional activated sludge process can remove multiple pollutants at the same time through the alternate operation of activated sludge in an anoxic-aerobic environment. In an aerobic environment, microorganisms carry out nitrification reaction and remove some organic matter, and use organic...

AI Technical Summary

Problems solved by technology

It is difficult to meet the denitrification requirements with traditional aeration methods

At higher aeration rates, although a good oxygenation effect can be achieved, a reasonable dissolved oxygen concentration cannot be controlled

When the aeration rate is reduced, the mixing effect of the system is weakened under low dissolved oxygen conditions, resulting in a decrease in the removal load of the system

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