Rural sewage treatment system and application thereof

Abstract

The invention discloses a rural sewage treatment system and application thereof, and belongs to the technical field of sewage treatment.The rural sewage treatment system comprises an aerobic unit, a precipitation unit and a sludge concentration unit, a main air pipe is fixedly installed on the inner wall of the aerobic unit, and one end of the main air pipe extends out of the side wall of the aerobic unit; a liquid outlet pipe is fixedly mounted on the outer wall of the aerobic unit, and a limiting assembly and an adjusting assembly are arranged on the inner wall of the aeration pipe; according to the invention, by arranging a limiting assembly and an adjusting assembly, a turntable is rotated, other threaded rods are also driven to rotate when the turntable drives a chain wheel to rotate through the threaded rods, and after a piston ascends, contact points of the piston and a fixed head are different, so that the sizes of vent holes are different, gas can flow into an aeration pipe respectively, and a plurality of nozzles can be controlled; therefore, adjustment is simple and convenient, the structure is simple, later maintenance is facilitated, meanwhile, gas sprayed out of the aeration pipe can be uniform, the aeration treatment effect in sewage is improved, and the sewage purification effect is further improved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a rural sewage treatment system and its application. Background technique [0002] Rural sewage treatment is mainly to remove or degrade the toxic substances and substances that pollute the environment in domestic sewage, thereby reducing the harm to the environment. The current sewage treatment technology is relatively mature and there are many methods used, among which the main points are: For natural treatment systems and biological treatment systems. [0003] During the aeration process of the current sewage treatment system, due to the long laying length of the aeration pipes, the gas aerated by each aeration pipe is not uniform, resulting in an unsatisfactory sewage treatment effect. Simply increasing the power of the air pump only The end of the pipe extension direction can be improved and effective aeration can be carried out, but it still cannot eff...

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Problems solved by technology

[0003] In the aeration process of the current sewage treatment system, due to the long laying length of the aeration pipes, the aeration gas from each aeration pipe is not uniform enough, resulting in an unsatisfactory treatment effect of the sewage. Simply increasing the power of the air pump can only It can improve the effective aeration at the end of the pipeline extension direction, but it still cannot effectively solve the uniformity of aeration, and the sludge in the sewage treatment tank needs to be manually cleaned at the bottom of the tank, which increases the labor intensity of the workers. Therefore, a rural sewage treatment system and its application are provided

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