Glow discharge plasma water treatment method and device

A water treatment device, plasma technology, applied in the direction of sterilization/microdynamic water/sewage treatment, etc., can solve the problems of large power loss, high discharge voltage, low discharge voltage, etc., to reduce the structure and increase the contact area , the effect of strengthening the processing effect

Active Publication Date: 2014-04-30
BEIJING RUIYUDA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a plasma water treatment method with low discharge voltage and high treatment efficiency for the problems of high discharge voltage and large power loss in the existing plasma water treatment method; another purpose of the present invention is A plasma water treatment device with simple structure, high efficiency and low discharge voltage is provided to solve the problems of complex structure and low efficiency of existing plasma water treatment devices

Method used

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  • Glow discharge plasma water treatment method and device
  • Glow discharge plasma water treatment method and device
  • Glow discharge plasma water treatment method and device

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Embodiment 1

[0044] figure 1 It is a schematic diagram of the basic structure of the present invention, figure 2 for figure 1 The schematic diagram of the cross-sectional structure, image 3 A schematic diagram of the enlarged structure of a single water surface electrode, combined with figure 1 , figure 2 as well as image 3 The glow discharge plasma water treatment method of the present invention is described as follows, comprising the following steps:

[0045] After the sewage to be treated is mechanically treated, a water surface electrode b1 of the same potential is placed on the surface of the sewage. The water surface electrode is cylindrical and covered with an insulating medium. The water surface electrode b1 is connected to the positive or negative pole of the power supply; the water surface electrode b1 The electrodes b2 in the water and the water are connected with the insulating fixing device b6, and the electrode b2 in the water is connected with the wire b3 and the wa...

Embodiment 2

[0050] On the basis of embodiment 1, the present invention provides a kind of plasma water treatment device adopting the method of embodiment 1, such as Figure 4 As shown, the plasma water treatment device of this embodiment includes a container 3, a water inlet 1 and a water outlet 2 are arranged on the container 3, and an underwater electrode 12 is arranged in the sewage in the container 3, and the underwater electrode 12 is a bare plate-shaped Conductor material; the water surface electrode 7 of the same potential is placed on the surface of the sewage in the container 3. The water surface electrode 7 is cylindrical and is wrapped with an insulating medium. The water surface electrode 7 is in direct contact with the sewage, and the outer surface of the water surface electrode 7 is in contact with the water surface. A gap is formed, and after electrification, a glow discharge is generated in the gap to generate plasma and active particles, and the plasma and active particles...

Embodiment 3

[0056] Figure 7 A schematic diagram of another plasma water treatment method provided by the present invention; Figure 7 , another kind of glow discharge plasma water treatment method provided by the present invention comprises the following steps:

[0057] After the sewage to be treated is mechanically treated, the water surface electrodes a7 arranged in parallel are placed on the surface of the sewage. The water surface electrodes a7 are cylindrical and covered with an insulating medium. On the positive or negative pole of the power supply; the water surface electrode a7 is in direct contact with the sewage, and there is a gap between the outer surface of the water surface electrode a7 and the water surface, turn on the power supply, adjust the voltage to between 3kV-5kV, and after reaching the initial discharge voltage, Glow discharge will be generated in the aforementioned gap, plasma and active particles will be generated, and the sewage will be treated in depth by usi...

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Abstract

The invention discloses a glow discharge plasma water treatment method comprising the following steps: after to-be-treated wastewater is subjected to mechanical treatment, water surface electrodes having the same potential are placed on the wastewater surface, the water surface electrodes are each cylindrical in shape, an insulating medium externally wraps the water surface electrodes, and the water surface electrodes are connected to a positive electrode or a negative electrode of a power source; an underwater electrode connected to the positive electrode or the negative electrode of the power source is placed in the wastewater, and is an exposed conductive material; the water surface electrodes are directly contacted with the wastewater, and a gap is formed between the outer surface of each water surface electrode and the water surface; after the power supply is switched on and an initial discharge voltage is reached, glow discharge is generated in the gaps, plasma and active particles are generated, and the wastewater is deep treated by utilizing the plasma and the active particles. The invention also provides a corresponding plasma water treatment device aiming at the plasma water treatment method. The method and the device are suitable for various water treatment, besides, can remove microbes and bacteria in the wastewater, and can remove peculiar smell radiated by the wastewater.

Description

technical field [0001] The invention belongs to the field of waste water treatment technology and purified water purification, and in particular relates to a glow discharge plasma water treatment method, and also relates to a reaction device for glow discharge plasma water surface treatment. Background technique [0002] With the rapid advancement of my country's industrialization and urbanization, the types and quantities of wastewater have increased rapidly, increasing the pressure on water environmental pollution and threatening ecological security and residents' health. At present, the types of industrial wastewater are complex, mainly composed of metallurgical wastewater, power plant wastewater, papermaking wastewater, coking gas wastewater, chemical fertilizer wastewater, textile printing and dyeing wastewater, etc. The wastewater mainly contains nitrite, acidic substances, benzene, benzene derivatives, Cyanide etc. In fact, the process of industrial production can di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/467
Inventor 刘文正李传辉
Owner BEIJING RUIYUDA TECH
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