Municipal sewage treatment device

Abstract

The present invention relates to the technical field of sewage treatment attachments, in particular to a municipal sewage treatment device, which can automatically clean the filter screen to improve the reliability of use; and can decompose nitrogen-containing value-added nutrients in sewage, Prevent eutrophication of water body and protect ecological balance; at the same time, it can disinfect sewage more thoroughly and improve practicability; it includes filter box, oxidation box, nitrification box, denitrification box and disinfection box connected sequentially from top to bottom, and the top of the filter box There is a water inlet pipe on the right side, a drainage pipe at the bottom of the left end of the disinfection box, a first filter net and a second filter net inside the filter box, a sewage pipe at the left end of the filter box, an oxidation box, a nitrification box and a denitrification box. The box is equipped with oxidation filler, nitrification filler and denitrification filler respectively, and also includes aerator, first aeration pipe, second aeration pipe, first solenoid valve, second solenoid valve, dispensing box, second communication pipe , the third connecting pipe and the controller.

Description

Technical field [0001] The present invention relates to the technical field of sewage treatment auxiliary devices, in particular to a municipal sewage treatment device. Background technique [0002] As we all know, the municipal sewage treatment device is an auxiliary device used to treat domestic sewage, runoff sewage, etc., to make it meet the discharge standard, and it has been widely used in the field of community sewage treatment, school sewage treatment and other fields; The existing municipal sewage treatment device includes a filter box, a disinfection box, and a connecting pipe. The filter box and the disinfection box are connected through the connecting pipe. The top of the filter box is provided with a water inlet pipe, and the inside of the filter box is provided with a filter net. The bottom end is provided with a feed pipe and a drain pipe, and a valve is set at the drain pipe; when the existing sewage treatment device is used, the sewage is introduced from the inle...

AI Technical Summary

Problems solved by technology

[0002] As we all know, the municipal sewage treatment device is an auxiliary device used to treat domestic sewage, runoff sewage, etc. to make it meet the discharge standard, and it has been widely used in the fields of community sewage treatment, school sewage treatment, etc.; The existing municipal sewage treatment device includes a filter box, a disinfection box and a connecting pipe. The filter box and the disinfection box are connected through the connecting pipe. The bottom end is respectively provided with a feed pipe and a drain pipe, and a valve is provided at the drain pipe; when the existing sewage treatment device is used, the sewage is introduced into the filter box from the water supply pipe, and the filter screen filters the impurities in the sewage , then the sewage enters the disinfection box through the connecting pipe, and the disinfectant is introduced from the feed pipe into the disinfection box to disinfect the sewage, and then the valve is opened to export the treated water from the drain pipe; the existing municipal sewage treatment device During use, it is found that the impurities in the sewage can easily block the filter screen, affecting the process of sewage treatment, and the cleaning of the filter screen is inconvenient, resulting in low reliability in use; and it is impossible to decompose nitrogen-containing value-added nutrients and discharge them directly If it is easy to cause eutrophication of the water body and destroy the ecological balance; at the same time, the water is always in a flowing state during the sewage treatment process, and the use of disinfectants cannot guarantee the thoroughness of disinfection, resulting in low practicability

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