Device for treating sewage by using dielectric barrier discharge plasma

Abstract

The invention discloses a device for treating sewage by using dielectric barrier discharge plasma. The device comprises a reaction table, a plasma reaction vessel and a liquid storage device, wherein the reaction table comprises an insulating board, a conductive base, support rods, a grounding electrode and two high voltage electrodes which are respectively connected with a positive pole and a negative pole of a high-voltage and high-frequency power supply; the insulating board and the conductive base are arranged up and down in a corresponding way by means of the support rods; the two high voltage electrodes which are respectively connected with the positive pole and the negative pole of the high-voltage and high-frequency power supply are respectively and fixedly arranged on the insulating board and the conductive base in an opposite way; the grounding electrode is arranged on the conductive base; the plasma reaction vessel is arranged between the two high voltage electrodes. The whole device is high in practicality, simple in equipment, safe in operation and convenient to operate, and has the advantages of being wide in treatment scope, good in effects, free from secondary pollution, and the like. The automatic control of the device is easy to realize, so that the device can be used for industrial production in future.

Description

technical field [0001] The invention belongs to the technical field of purifying polluted water, and in particular relates to a device for treating sewage with dielectric barrier discharge plasma. Background technique [0002] With the development of our country's economy and society, the shortage of water resources and the pollution of water environment have become increasingly prominent and become the focus of people's attention. In recent years, water pollution caused by various industrial productions has become more and more serious, the composition of sewage has become increasingly complex, and the requirements of environmental protection departments for water treatment have also been continuously strengthened. Traditional biological treatment technology has been difficult to meet the current water quality treatment requirements. [0003] Low-temperature plasma is the fourth state of matter after solid, liquid, and gaseous states. When the applied voltage reaches the ig...

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Problems solved by technology

[0005] Most of the existing plasma technology discharges in the air on the water surface, and then introduces the generated active particles into the water to react, which will cause the active substances to not be fully utilized, and the air will be released after the reaction, making it impossible to study the influence of the gas on the reaction. Therefore, it is necessary to design a new plasma sewage treatment device

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