Method and device for treating waste water by employing low-temperature plasma technique

A low-temperature plasma and technical treatment technology, which is applied in the wastewater treatment method and its device, in the field of wastewater treatment with ion technology, and achieves the effects of simple operation, mild reaction conditions and strong controllability.

Inactive Publication Date: 2008-07-09
NANJING UNIV
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to use low-temperature plasma technology to provide a wastewater treatment method that can make full use of various

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  • Method and device for treating waste water by employing low-temperature plasma technique

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[0017] As shown in Figure 1, the inlet of the water distributor is connected with the outlet of the water pump. The outlet of the water distributor faces the water distributor plate. The water distributor plate is installed obliquely, which is rectangular and has an aspect ratio of 4; the water distributor plate is installed on the bracket. It is installed between the high-voltage electrode and the grounding electrode. A quartz glass plate is arranged between the water distribution plate and the high-voltage electrode. The quartz glass plate is close to the high-voltage electrode. There is a 0.8cm gap between the quartz glass plate and the water distribution plate. And close to the high voltage pole. The shape of the high-voltage electrode and the grounding electrode is the same as that of the water distribution plate. The grounding electrode is directly grounded, and the high-voltage electrode is connected to a high-frequency and high-voltage power supply. The current frequency i...

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Abstract

The invention discloses a process and device for disposing wastewater adopting low temperature plasma technology, wastewater is pumped into water distributing machine and sent into a water distributing plate by a water pump, wherein the upper portion and the lower portion of the water distributing plate are respectively provided with a high-pressure stage and an earth electrode, a silex glass plate is mounted between the water distributing plate and the high-pressure stage, leading the silex glass plate to form a medium to resist discharge, use O3, H2O2, OH, H, O, high-energy electrons and ultraviolet light which produce in the process that the medium resists discharge, and pollutants in wastewater which flows on the water distributing plate to make reaction, thereby achieving the target of removing pollutants. The method is capable of proceeding in normal temperature and pressure, reaction condition with strong steerability is moderate, device and operation of the reaction are simpler, the active materials like high-energy electrons, O3, H2O2 and OH, H, O which produce in the reaction process react with pollutants in wastewater without choice, and degrades pollutants into carbon dioxide, water and simple organic matter.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and in particular relates to a wastewater treatment method and a device thereof, in particular to a method and a device for treating wastewater using low-temperature plasma technology. Background technique [0002] In recent years, low-temperature plasma technology has made great progress, and the development of low-temperature plasma technology provides new technologies and processes for the further development of environmental pollution control technology. The most widely used method for environmental pollution control in low-temperature plasma technology is the dielectric barrier discharge method. The dielectric barrier discharge is a gas discharge in which an insulating medium is inserted into the discharge space. The medium can be covered on the electrode or suspended in the discharge space. , when a sufficiently high AC voltage is applied to the discharge electrodes, the gas between the ...

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Application Information

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IPC IPC(8): C02F1/48C02F1/32
Inventor 郑正冯景伟赵国华聂耳罗兴章张继彪黄兴发高顺枝
Owner NANJING UNIV
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