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

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

Inactive Publication Date: 2011-01-05
BEIJING JIAOTONG UNIV
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  • Claims
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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
  • Water treatment device for combining low-temperature plasma and air oxidation

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Embodiment Construction

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

[0020] For wastewater treatment, both oxidation and microbial action require the participation of oxygen. 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, and ultraviolet light generated by the low-temperature plasma of pulsed discharge in water accelerate and synergize the oxidation reaction, greatly improve the rate of single air bubbling oxidation, and reduce the energy consumption of wastewater treatment.

[0021] In order to achieve the above-mentioned goal, the technical scheme principle adopted in the present invention is as follows: figure 1 shown. Its structure includes a reactor 1 , a gas disperser 3 ...

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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 thewater and achieves the aim of purification.

Description

technical field [0001] The invention relates to the field of waste water treatment and water quality 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. 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 three functions of high-energy electron radiation, ozone oxidation, and ultraviolet light decomposition. Studies have...

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Application Information

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