Continuous water supply and intermittent drainage device for sewage treatment biological bed

Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to a continuous water supply and intermittent drainage device for a sewage treatment biological bed. The continuous water supply and intermittent drainage device comprises the specific structure: a water tank with the open top is defined by the edges of a tank body, a drainage opening is formed in the bottomof the water tank and used for draining sewage; an upper water tank is fixed to the upper part of the middle inside the water tank, and an upper water outlet is formed in the bottom of an upper watertank body; a lever seal capable of swinging up and down along the side wall of the upper water tank is arranged on the position, close to the side wall of the middle of the water tank, of the upper water tank; a lower sealing valve is arranged at one end of a lever and directly faces the drainage opening of the water tank; an upper sealing valve is arranged at the other end of the lever and usedfor sealing the upper water outlet in the bottom of the upper water tank; and in the operating process, the drainage opening of the water tank is opened or closed through up-down swinging of the leverseal. The continuous water supply and intermittent drainage device is ingenious in structural design, and opening and closing of the whole device are realized through mechanical automation without more human intervention.

Description

technical field [0001] This application belongs to the technical field of sewage treatment, and specifically relates to a patent application for a continuous water supply and intermittent drainage device for sewage treatment biological beds. Background technique [0002] With the improvement of urbanization level and the rapid expansion of population size, the requirements for urban sewage treatment are getting higher and higher. One of the important indicators of urban sewage treatment is whether the COD value meets the standard. In the prior art, the main technological process of sewage treatment is: first, through solid-liquid separation of sewage (sedimentation tank), and then through certain biochemical treatment (aeration treatment for aerobic fermentation) to reduce the COD value to achieve discharge standards. One of the main disadvantages of this method is that the sewage treatment plant needs to occupy a large area of ​​land, and the sewage treatment speed is slow,...

AI Technical Summary

Problems solved by technology

But generally speaking, these existing treatment processes or equipment still have certain disadvantages such as slow treatment speed and high treatment cost, and due to the huge amount of sewage production, it is still necessary to further develop and design sewage treatment equipment to better Meet the needs of actual sewage treatment

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