Purification tank using three-dimensional electrolysis and AAO process to treat decentralized sewage

Abstract

The invention relates to a purification tank using a three-dimensional electrolysis and AAO process to treat decentralized sewage. The purification tank comprises a tank body, a water inlet pipe, a water outlet pipe and four partitions and is characterized in that the four partitions separates the inner cavity of the tank body into five cells; a filter tank, a settling tank and a stirring cavity are arranged in the first cell, and the sewage is subjected to anaerobic and anoxic treatment in the first cell and the second cell; the sewage is subjected to aerobic treatment in the third cell and the fourth cell; a three-dimensional electrolysis plate for further removing the phosphorus of the sewage is arranged in the fifth cell. The purification tank has the advantages that anaerobic-anoxic-aerobic treatment and electrolysis phosphorus removing of the sewage are achieved, the nitrogen and phosphorus removal of the decentralized sewage in the rural area is benefited, the stirring and reflux in the sewage treatment process do not consume energy, the phosphorus content in the sewage is further lowered by the final three-dimensional electrolytic treatment, and an effective treatment process and equipment is provided for the treatment of the decentralized sewage in the rural area.

Description

technical field [0001] The invention relates to a sewage purification tank, in particular to a purification tank which adopts three-dimensional electrolysis and AAO technology to treat dispersed sewage. Background technique [0002] At present, the urban sewage treatment technology is relatively mature, and urban sewage can be collected by the urban drainage pipe network and transported to the sewage treatment plant for treatment. However, domestic sewage in most rural areas of our country is discharged without any treatment, resulting in the overall water quality of rivers in rural areas deteriorating, nitrogen and phosphorus content exceeding the standard seriously, and some rivers and lakes showing serious eutrophication. And rural dwellings are scattered, the drainage pipes in rural areas are difficult to connect, and the investment cost is also very high. Therefore, the treatment of rural sewage cannot completely imitate the method of urban sewage treatment. [0003] ...

AI Technical Summary

Problems solved by technology

Due to economic reasons, sewage treatment plants cannot be widely used in rural areas of our country at present; artificial wetland systems are low in cost, easy to maintain, and generally do not consume electricity, but they also occupy a lot of land, lack optimal design specifications and parameters, and have potential Disadvantages such as inhabitation of disease vectors (such as mosquitoes, etc.)

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