A sewage treatment device

Abstract

The invention discloses a sewage treatment device. A sewage inlet pipe and an oil suction sewage pipe are arranged on the upper end cover of a pressure tank, a separation layer is arranged in the middle of the pressure tank, a stirring shaft is arranged in the pressure tank, and a separation layer The stirring shaft under the plate is equipped with a water collection pan, and a communication hole is provided on the separation layer, and a solenoid valve is arranged in the communication hole, and a plurality of centrifugal filters are uniformly connected under the water collection pan. The lower part of the shaft is covered with a connecting collar, and the lower part of the centrifugal filter is connected with the connecting collar through a connecting rod. There is a rotating disk in the lower end cover of the pressure tank, and between the guide cylinder and the rotating disk at the lower end of the centrifugal filter. A support spring is provided, a joint mechanism is provided between the linkage seat and the water collecting plate, an electrostatic field generator is provided in the pressure tank above the separation layer, and a stirring shaft in the pressure tank above the separation layer is provided. Aeration mechanism. The invention has simple structure, can quickly separate oily sewage, has high operation efficiency, and has low oil content in effluent.

Description

technical field [0001] The invention relates to the field of sewage treatment equipment, in particular to a sewage treatment device. Background technique [0002] The daily production and living activities of human beings produce various oily compounds, which gradually invade water bodies and form different types of oily sewage. Arbitrary discharge of oily sewage not only wastes natural resources, but also affects environmental media such as soil, groundwater, atmosphere, and the entire ecosystem, directly or indirectly endangering human health. Therefore, the separation and treatment of oily sewage has become one of the key issues of environmental governance, which has attracted great attention from all over the world. [0003] There are many methods in the oil-water separation process, such as: gravity method, centrifugation method, flotation method, electro-desorption method and chemical treatment method, among which gravity separation method is the earliest and widely u...

AI Technical Summary

Problems solved by technology

However, sodium hypochlorite solution is easy to decompose when exposed to light, making it easy to lose the sterilization effect

The valves currently used in sewage treatment plants generally cannot directly add solid sodium hypochlorite in the process of sewage transportation

[0005] Therefore, the existing valves for sewage treatment plants and sewage treatment plants need to be further improved.

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