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Plasma water treatment device

A water treatment device and plasma technology, which are applied in illumination water/sewage treatment, electrochemical water/sewage treatment, sterilization/microdynamic water/sewage treatment, etc., can solve the problem that oxidation cannot be fully utilized and water treatment efficiency Low, complex structure and other problems, to achieve the effect of good water treatment, convenient operation, simple equipment

Active Publication Date: 2014-12-17
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the short life of most active particles in the discharge gas, its oxidation cannot be fully utilized
In addition, in these methods, the discharge voltage is not applied to the water, and the high voltage does not have a great impact on the activation, polarization and neutralization of impurities in the water, which leads to the low efficiency of water treatment in these methods
There are also some water treatment devices with high water purification efficiency, but the structure is complex and the cost is high

Method used

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Examples

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Embodiment 1

[0022] see figure 2 , the air purification device in this embodiment includes an air supply unit 100 and a plasma generator 200 .

[0023] The air supply unit 100 may include an air pump, a plastic conduit 101 and a one-way valve 102 . The air pump can pass outside air into the device to generate an air flow; the air flow flows into the plastic conduit 101 . In order to improve the quality of the incoming air, an air filter pipe can be arranged in the air pump to filter and purify the outside air first. The plastic conduit 101 can be designed to be very long as required, and a one-way valve 102 is arranged near its outlet. The one-way valve 102 ensures that water will not pour into the air pump when it is not working. Air is passed into the plastic conduit, through the one-way valve, and into the plasma generator 200 .

[0024] The air flow rate of the air pump 100 in the embodiment of the present invention is adjustable. By adjusting the air flow rate of the air pump 100,...

Embodiment 2

[0039] In this implementation, a plurality of uniformly spaced high-voltage electrodes are used to generate a dielectric barrier discharge ( image 3 Only three electrodes on the plane are shown in the figure, in fact, more electrodes can be used to make a three-dimensional matrix type large-scale discharge device), a glass cover 203 is still arranged outside each electrode, and a shell 202 is outside the glass cover, and all The shells are all grounded; and each electrode and the tail of each glass cover are airtightly connected to the circuit board 208. There is a conductive plate inside the circuit board 208. The upper part of the conductive plate is connected to all high-voltage electrodes 203, and the lower part is connected to the high-voltage wire 207. The high-voltage wire 207 Hard thick copper wire is selected, and the outside of the circuit board 208 and the high-voltage wire 207 are all made of rubber insulating material to ensure that high-voltage electricity is wel...

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Abstract

The invention discloses a gas-liquid two-phase discharge plasma water treatment device. The device comprises a gas supply unit and a plasma generator. The plasma generator comprises a high-voltage power supply, high-voltage electrodes and a discharge cavity. The front end of the discharge cavity is connected to an air inlet provided with a one-way valve, and the back end is open and contacts with the water to be treated; and the outside of the high-voltage electrodes are provided with a glass cover as the medium. When working, an air supply unit introduces air into the discharge cavity, wherein the cavity end is an aqueous phase and the cavity front is a gas phase; the high-voltage electrodes in a two-phase mixed environment produce plasma through high-voltage discharge. The device adopts gas-liquid two-phase discharge, retains the advantage of easy production in traditional gas phase discharge, and increases the contact surface of discharge products and liquid; and electric field, ultraviolet radiation, hydroxyl radical, oxygen atoms under different excitation conditions and other active particles produced by discharge can rapidly and directly act on the liquid.

Description

technical field [0001] The invention relates to the field of water pollution prevention and control, in particular to a plasma water treatment device. Background technique [0002] In recent years, with the rapid development of my country's economy, a large amount of waste water harmful to the environment has been produced, drinking water sources have been seriously polluted, and it is showing a continuous development trend, which directly affects social production and people's lives. The development and utilization of advanced water treatment technology Therefore, it has received more and more attention. [0003] Commonly used water treatment methods are: sediment filtration, hard water softening, activated carbon adsorption, deionization, reverse osmosis, ultrafiltration, distillation, ultraviolet disinfection, and biochemical methods. However, these methods are either inefficient or costly, or may generate new toxic substances. [0004] In the civilian field, aquaculture...

Claims

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Application Information

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IPC IPC(8): C02F1/46C02F1/50C02F1/32
Inventor 刘定新王遂王小华荣命哲
Owner XI AN JIAOTONG UNIV
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