Municipal sewage reclamation treatment device and treatment method adopting same

Abstract

The invention relates to a municipal sewage reclamation treatment device and a treatment method adopting the same. The device comprises a blast aeration system and a sewage treatment system, wherein the blast aeration system comprises a membrane air separator, an oxygen compression tank and a nitrogen compression tank; the sewage treatment system comprises an oxygen refiner, an ozone generator, an aeration tank, a sedimentation tank, a self-oxidation denitrification tank, a secondary sedimentation tank and an ozone contact tank; the municipal sewage passes through a water inlet pipe, is sequentially treated by the aeration tank, the sedimentation tank, the self-oxidation denitrification tank, the secondary sedimentation tank and the ozone contact tank, which are connected in order, and then passes through a water outlet pipe to obtain reclaimed water; the ozone generator is connected with the oxygen refiner and an ozone aeration tray at the bottom of the ozone contact tank respectively by valves. The treatment device and the treatment method have the advantages of simple structure, reasonable design, flexibility and convenience in operation and use, high treatment efficiency, high effluent quality, stability in operation of the device, safety, 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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