Water treatment device for combining low-temperature plasma and air oxidation

A low-temperature plasma, water treatment device technology, applied in the direction of oxidized water/sewage treatment, magnetic field/electric field water/sewage treatment, etc.

Inactive Publication Date: 2013-03-13
BEIJING JIAOTONG UNIV
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Problems solved by technology

Therefore, there are limitations in the decomposition of organic matter by ultraviolet light

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  • Water treatment device for combining low-temperature plasma and air oxidation

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[0019] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] For wastewater treatment, whether it is oxidation or microbial action, the participation of oxygen is required, and air blowing into the river to disperse provides sufficient oxygen and oxygen mass transfer for the oxidation of pollutants. At the same time, the active groups, ozone, ultraviolet light, etc. generated by the pulse discharge low-temperature plasma in water can accelerate and synergize the oxidation reaction, greatly increase the single air bubbling oxidation rate, and reduce the energy consumption of wastewater treatment.

[0021] In order to achieve the above-mentioned goals, the principle of the technical solution adopted in the present invention is as follows: figure 1 shown. Its structure includes a react...

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Abstract

The invention discloses a water treatment device for combining low-temperature plasma and air oxidation. The device comprises a reaction vessel, an oxidation device and a discharging device, wherein the oxidation device is arranged at the bottom of the reaction vessel and used for forming bubbles in the reaction vessel and improving the mass transfer of oxygen and water; the discharging device comprises an electrode and a power supply which are arranged in the reaction vessel; and the electrode is used for generating free radicals, ozone and UV-light by discharging to initiate oxygen participated chain reaction in water. In the invention, air is blown in wastewater by the oxidation device, and the tiny bubbles are formed in the aqueous solution, and the mass transfer between the oxygen and the water is realized in the movement process of the bubbles. The invention strengthens the oxidation reaction with pollutants in water under the action of the plasma, degrades the pollutants in the water and achieves the aim of purification.

Description

technical field [0001] The invention relates to the field of waste water treatment and water purification of environmental protection technology, in particular to a water treatment device combining low-temperature plasma and air oxidation. Background technique [0002] In most cases, the treatment of wastewater is to remove the organic matter mixed in the water, and the main technical indicators to measure the water quality and organic matter content are pH, CODcr, BOD 5 , SS, animal and vegetable oils, chroma, ammonia nitrogen, phosphate, etc. The traditional economical and effective method is biological treatment, which uses the action of biological bacteria to convert organic matter in water into CO 2 or CH 4 discharge. [0003] Low-temperature plasma wastewater treatment technology is a newly developed advanced oxidation technology, which combines high-energy electron radiation, ozone oxidation, and ultraviolet light decomposition into one wastewater treatment technol...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/48C02F1/74
Inventor 姜学东胡小吐王毅
Owner BEIJING JIAOTONG UNIV
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