Energy saving and environmental protection sewage treatment system

Abstract

The invention relates to the technical field of sewage treatment, in particular to an energy-saving and environment-friendly sewage treatment system. The sewage treatment system is composed of a sewage circulation system and a sewage circulation system. The sewage circulation system also includes a preliminary filtering device. The preliminary filtering device is rotatably connected with a Filter ball, the filter ball has an inlet corresponding to the spherical surface of the sewage inlet pipe and an outlet corresponding to the spherical surface of the sewage outlet pipe, and a regulating pipe is arranged on the pipeline of the sewage outlet pipe, and the regulating pipe controls the flow direction of the sewage to discharge or flush the inner wall of the filter ball. The invention solves the problem of shortening the service life of the filter membrane body by directly performing membrane filtration in an environment with high turbidity of sewage. The proposed sewage treatment system can remove the larger particulate matter after primary filtration of sewage. The impurity is removed, the burden of subsequent membrane filtration is reduced, the dirt and the dirty liquid are clearly distinguished, and the dirty liquid can also be used for the second time to wash the filter plate, which is energy-saving and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an energy-saving and environment-friendly sewage treatment system. Background technique [0002] Common sewage treatment methods, such as the use of biological bacteria technology or membrane filtration technology, can achieve better treatment results. In order to improve the cleanliness of sewage treatment, sewage often needs to undergo several times of filtration treatment. [0003] The Chinese patent (CN108622971A) proposes an MVR sewage treatment system utilizing solar energy, which belongs to the technical field of energy saving and environmental protection. The separation subsystem and the waste heat recovery subsystem are used to realize the two-stage preheating / cooling method. Combined with the solar energy subsystem preheating, and the vapor compression recycling in the concentration and drying subsystems, the waste heat is maximized and the cost is effectively...

AI Technical Summary

Problems solved by technology

[0004] The technical solution has the following problems: the filtration of sewage adopts MVR membrane filtration technology, although the solid-liquid separation in sewage can be achieved, but the traditional membrane filtration is distinguished according to the size of the separated substances, and the mixed components in sewage It is relatively miscellaneous, which contains a large amount of large particles, and direct membrane filtration in an environment with high sewage turbidity will affect the service life of the membrane

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