Solid-liquid separation sewage treatment device

Abstract

The invention provides a solid-liquid separation sewage treatment device which is characterized in that the sewage treatment device comprises a deposition tank positioned on the front end and connected in series with three solid-liquid separation treatment units. Each Solid-liquid separation sewage treatment device is divided into a sewage treatment space and a sludge treatment space by using a sludge-sewage separation bottom plate 8 and a sludge-sewage separation side wall plate 3. An interception device 6 is arranged in the sewage treatment space. At least one deposited sludge side discharge port 9 is arranged at the lower part of the sludge-sewage separation side wall plate 3. The upper surface of the sludge-sewage separation bottom plate 8 is inclined to the deposited sludge side discharge port 9. Rinsing ports 4 are respectively provided on side walls on the two sides corresponding to the sewage treatment space, and are positioned on the side walls above or below the interception material or device 6. Inspection ports 5 are provided on the top plate of the tank bodies of the sewage treatment space and the sludge treatment space. A ventilation hole (pipe) 11 is provided on the upper part of the side wall. With the device and the method, sewage treatment and sludge treatment can be separated, such that the influence on sewage treatment caused by digestion gas and sludge degradation products is reduced, and sewage treatment and sludge reduction treatment can be realized simultaneously.

Description

technical field [0001] The invention relates to a sewage treatment device. Background technique [0002] The essence of sewage treatment is solid-liquid separation in water. Sludge is a by-product of sewage treatment. Anaerobic degradation of sludge will produce digested gas. The flotation of digested gas disturbs the precipitation of organic matter in water. In conventional anaerobic During the treatment process, the digestive juice is mixed with the sludge bacteria, and the decomposition products of the accumulated sludge will release organic matter into the water body, which affects the effect of sewage treatment. Multi-stage sewage treatment can intercept pollutants and impurities step by step, and improve the sewage step by step. If sludge accumulates and decomposes to release organic matter, the accumulated sludge will weaken the technical advantages of multi-stage sewage treatment. The core of sewage treatment is to separate impurities from the water body, while the ...

AI Technical Summary

Problems solved by technology

[0002] The essence of sewage treatment is solid-liquid separation in water. Sludge is a by-product of sewage treatment. Anaerobic degradation of sludge will produce digested gas. The flotation of digested gas disturbs the precipitation of organic matter in water. In conventional anaerobic In the treatment process, the digestive juice is mixed with the sludge bacteria, and the decomposition products of the accumulated sludge will release organic matter into the water body, which affects the effect of sewage treatment

Multi-stage sewage treatment can intercept pollutants and impurities step by step, and improve the sewage step by step. If sludge accumulates and decomposes to release organic matter, the accumulated sludge will weaken the technical advantages of multi-stage sewage treatment

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