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

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...

AI Technical Summary

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

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