Sterilizing and air dissolving device for sewage treatment

Abstract

The invention discloses a sterilizing and air dissolving device for sewage treatment. The sterilizing and air dissolving device comprises a device body. The device body mainly comprises a sewage inlet, a sewage outlet, an air compressor and an aeration plate. The sewage inlet extends into the device body and is connected with a universal connector. A spray nozzle is connected with the bottom of the universal connector rotationally. A plurality of spiral flow guide grooves are formed in the spray nozzle. A first overflow tank is arranged in the bottom of the device body fixedly. A second overflow tank is arranged in the first overflow tank. A third overflow tank is arranged in the second overflow tank. A rotating shaft is arranged in the device body vertically. Sliding plates are arranged in the first overflow tank, the second overflow tank and the third overflow tank. First pores are formed in the sliding plates. The sterilizing and air dissolving device has the advantages that the spray nozzle rotates without exogenetic force, so that air dissolving quantity is increased, and energy sources are saved; sewage in the device can contact with air in the device in forms of water curtains and fountains, so that air dissolving efficiency of the sewage is improved greatly, and later sewage treatment is facilitated.

Description

technical field [0001] The invention belongs to the field of environmental protection sewage treatment, and in particular relates to a sterilizing and gas-dissolving device for sewage treatment. Background technique [0002] With the rapid development of my country's economy and the acceleration of the industrialization process, my country's GDP growth is relatively rapid, but the ensuing environmental pollution problems are also relatively serious, especially the situation of water pollution in my country is particularly serious. [0003] Water is a natural resource that human beings rely on for survival. People produce a large amount of sewage every day. If the sewage is not treated effectively, it will easily cause water environment pollution. [0004] In sewage treatment, the dissolved air treatment of sewage is a particularly important procedure in sewage treatment. At present, the dissolved air treatment of sewage in my country mainly adopts the form of aeration, and t...

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Problems solved by technology

[0003] Water is a natural resource that human beings rely on for survival. Every day, people produce a large amount of sewage. If the sewage is not treated effectively, it will easily cause water pollution.

[0004] In sewage treatment, the dissolved air treatment of sewage is a particularly important procedure in sewage treatment. At present, the dissolved air treatment of sewage in my country mainly adopts the form of aeration, and the air is passed into the sewage, and the air is dissolved in the sewage, but the air is in The residence time in the sewage is short, the amount of dissolved air is not high, the efficiency of dissolved air is low, and it is difficult to maintain the subsequent sewage treatment to achieve the ideal treatment effect

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