Municipal sewage treatment device

Abstract

The invention relates to the technical field of an auxiliary device for sewage treatment, and in particular relates to a municipal sewage treatment device. The municipal sewage treatment device can automatically clean a filter screen to improve the reliability of use, and can decompose nitrogen-containing value-added nutrients in sewage to prevent eutrophication of water bodies and protect the ecological balance, at the same time, disinfection of the sewage is more thorough, and practicability is improved. The municipal sewage treatment device includes a filter tank, an oxidation tank, a nitrification tank, a denitrification tank and a sterilization tank which are connected in order from top to bottom. The right side of the top of the filter tank is provided with a water inlet pipe, and the bottom of the left end of the sterilization tank is provided with a water drain pipe. A first filter net and a second filter net are arranged inside the filter tank. The left end of the filter tankis provided with a sewage discharge pipe, and an oxidation filler, a nitrification filler and a denitrification filler are respectively arranged in the oxidation tank, the nitrification tank and the denitrification tank. The municipal sewage treatment device also includes an aerator, a first aeration tube, a second aeration tube, a first solenoid valve, a second solenoid valve, a medicine distribution box, a second communication tube, a third communication tube and a 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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