Immersion type needle-plate discharge plasma sewage treatment unit

Abstract

The invention discloses an immersion type needle-plate discharge plasma sewage treatment unit which comprises a reaction vessel, a gas circulating pump, a discharge protection cover arranged inside the reaction vessel, a positive pole and a negative pole. A discharge polar plate is arranged inside the discharge protection cover. The discharge polar plate is connected with one end of the positive pole, and the other end of the positive pole passes through a positive protective tube to be connected to a positive electrode of a high frequency high voltage power supply. A negative electrode of the high frequency high voltage power supply is connected with one end of the negative pole. The other end of the negative pole passes through a negative protective tube to be arranged inside the discharge protection cover, corresponding to the discharge polar plate. The unit provided by the invention has advantages of stable and reliable operation, simple structure, strong practicality, high treatment effect, high energy utilization rate and the like, and can be widely applied in the field of sewage treatment.

Description

technical field [0001] The invention belongs to the field of water treatment and purification treatment, and in particular relates to a submerged needle plate discharge plasma sewage treatment device. Background technique [0002] With the continuous development of economy and society, our country is currently facing the environmental problems of water resource shortage and serious water pollution. Traditional biological treatment technology is difficult to meet the increasingly complex water quality treatment requirements, such as the treatment of dye wastewater, pesticide wastewater, wastewater containing persistent organic pollutants, etc. [0003] Plasma technology is a relatively cutting-edge advanced oxidation technology that has emerged in recent years, and was first applied to environmental governance. It has multiple functions such as ozone oxidation, ultraviolet photodegradation, free radical oxidation, pyrolysis and high-energy electron radiation, and can effecti...

AI Technical Summary

Problems solved by technology

[0004] Some of the current plasma sewage treatment devices have more or less problems, such as the inability to efficiently discharge in the water phase, and most of them are discharged in the gas and introduced into the water surface for reaction, which leads to the inability to fully utilize the generated plasma. It cannot be fully mixed and reacted with water in time; in addition, the ozone generated during the plasma discharge process is not fully utilized and discharged into the air to pollute the environment; some other reaction devices require magnetic stirring or mechanical stirring, which consumes a lot of energy

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