Process and method for treating high-concentration sewage by low-temperature plasma

A low-temperature plasma, high-concentration technology, used in chemical instruments and methods, special compound water treatment, light water/sewage treatment, etc. High utilization efficiency, low energy consumption and simple process structure

Inactive Publication Date: 2017-11-14
魏星
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  • Application Information

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Problems solved by technology

Existing advanced oxidation technologies include ultraviolet ( UV ), ozone ( O 3 ), hydrogen peroxide ( H 2 o 2 ) and their mixed use and other methods, these oxidation technologies have disadvantages such as high operating costs and large consumption of oxidants, which limit their popularization and application

Method used

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  • Process and method for treating high-concentration sewage by low-temperature plasma

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Embodiment Construction

[0019] see figure 1 , a process and method for low-temperature plasma treatment of high-concentration sewage, specifically comprising the following steps:

[0020] Step 1: High-concentration sewage enters the filter 10 through the water inlet pipe 11, and the high-concentration sewage is filtered by the filter 10 and sent to the sewage storage tank 9, and the high-concentration sewage stored in the sewage storage tank 9 is sent to the atomizing nozzle after being pressurized 12. After being pressurized by the air compressor 1, the mixed gas enters the atomizing nozzle 12 to atomize the high-concentration sewage and spray it into the discharge area of ​​the electrode 13.

[0021] Step 2: The high-voltage pulse generator 8 generates a high-voltage pulse voltage with a steep leading edge and a narrow pulse. The high-voltage pulse voltage discharges at the electrode 13 to accelerate the electrons and form high-energy free electrons that do not need shielding. The high-energy free...

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Abstract

The invention discloses a process and method for treating high-concentration sewage with low-temperature plasma. The high-concentration sewage is filtered and then sent to a sewage storage pool. After being pressurized, the high-concentration sewage is sent to an atomizing nozzle, atomized by a mixed gas, and then sprayed into an electrode. In the discharge area, the high-voltage pulse voltage generated by the high-voltage pulse generator is discharged at the electrode, which accelerates the electrons and forms high-energy free electrons that do not need to be shielded. The high-energy free electrons cause the water molecules in the high-concentration sewage to undergo excitation, cracking and ionization, and generate free carboxyl groups. Radical OH, O3, H2O2, carboxyl free radicals OH, O3, H2O2 bombard the C-C bond and unsaturated bond of organic matter in high-concentration sewage, making the organic matter in high-concentration sewage break bonds and open rings, and make high-concentration sewage The large molecules of organic matter in the medium become small molecules, and the purification of high-concentration sewage is realized. The invention has advanced process method, has the advantages of high processing efficiency, simple structure and low energy consumption, and can improve the economic benefits of enterprises.

Description

technical field [0001] The invention belongs to the technical field of high-concentration sewage treatment, and in particular relates to a process and method for treating high-concentration sewage with low-temperature plasma. Background technique [0002] Clean water plays a vital role in people's daily life and industrial economy. With the development of industrialization, environmental and water pollution has become a global concern. Developed countries attach great importance to environmental issues while developing their economies. For my country, a country with rapid economic development, this problem is particularly prominent. If the pollution problem cannot be solved well, it will seriously affect the sustainable development of our national economy. At present, there are many types of industrial wastewater from various industries such as chemical industry, printing and dyeing, pesticides, etc., and the discharge volume is increasing day by day. Some of these organi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/30
CPCC02F1/30C02F2305/023
Inventor 魏星方廷勇苗春光胡浙平魏翰林韦迪
Owner 魏星
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