Negative pressure sewage ecological treatment tank

Abstract

The invention discloses a negative pressure sewage ecological treatment tank. The treatment tank comprises a main water tank. The main water tank is divided into a water feeding section, a negative pressure section and a water outlet section. The bottom of the water feeding section is provided with diatomite mud. A water feeding pipe is arranged at the bottom of the water feeding section. The water feeding section is provided with the water feeding pipe, a high pressure gas pipe and a silt discharge pipe. The high pressure gas pipe is connected to a high pressure gas source system. The upper part of the negative pressure section is provided with a negative pressure chamber. A lower port of the negative pressure chamber is below the water level. The top of the negative pressure chamber is connected with an exhaust pipe. A water flow channel is arranged in the negative pressure chamber. An aquatic plant planting rack and aquatic plants are arranged in the water flow channel. Two ends ofthe water flow channel are respectively communicated with the water feeding section and the water outlet section. An adsorption medium, an overflow wall and a water outlet pipe are arranged in the water outlet section. The overflow wall is located between the adsorption medium and an opening of the water outlet pipe. The negative pressure sewage ecological treatment tank has the advantages of small occupied area, large sewage capacity and shallow bottom of the pool, can fully mix the diatomite mud and the sewage, and has a lot of ecological decontamination processes so that the treated sewagecan meet the national emission standards.

Description

technical field [0001] The application belongs to the technical field of sewage treatment facilities, and in particular relates to a negative-pressure sewage ecological treatment pool. Background technique [0002] Existing sewage treatment tanks generally use electricity to supply air to the sewage to increase oxygen. Due to the large volume of the sewage treatment tank, there will be a problem of insufficient dissolved oxygen. During the sewage treatment process, diatomite mud and silt generally accumulate at the bottom of the pond, and the diatomite mud and sewage are not mixed enough. Moreover, sewage treatment tanks generally occupy a large area. At present, every inch of land is very expensive, and the cost of occupying land for large-scale sewage treatment tanks is high. In order to reduce the floor area of ​​the sewage treatment tank without reducing the volume of the sewage treatment tank, the sewage treatment tank can only be built deeper, so that the bottom of t...

AI Technical Summary

Problems solved by technology

During sewage treatment, diatomite mud and silt generally accumulate at the bottom of the pond, and diatomite mud and sewage are not mixed sufficiently

Moreover, the sewage treatment tank generally occupies a large area

At present, the cost of land is very high, and the cost of occupying land for large-scale sewage treatment tanks is high

In order to reduce the floor area of ​​the sewage treatment tank without reducing the volume of the sewage treatment tank, the sewage treatment tank can only be built deeper, so that the bottom of the sewage treatment tank is difficult to transmit light and has insufficient dissolved oxygen

Moreover, the diatomite mud at the bottom of the pool is not mixed enough with the sewage, and the sediment is not easy to clean up. The end of the ecological decontamination process leads to a decline in the sewage treatment capacity of the sewage treatment pool.

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