System and method for treating sewage

Through the first and second-stage ozone reactors connected in series, combined with ozone catalytic oxidation and membrane catalytic technology, the catalysts supported by Fe2O3 and CuO, and the catalysts supported by ceramic membrane MnO2 and Fe2O3 are solved, and the problems of poor sewage treatment and residual ozone in the prior art are achieved, achieving more efficient sewage treatment and lower ozone residues.

CN119912054APending Publication Date: 2025-05-02CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Application Number
CN202311420964.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-10-30
Publication Date
2025-05-02

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Abstract

The invention relates to the field of advanced wastewater treatment, and discloses a system and a method for treating sewage. Along the flowing direction of material flow, the system comprises at least one group of primary ozone reactor and secondary ozone reactor which are sequentially connected in series, in the flowing direction of material flow, the primary ozone reactor comprises an ozone catalytic oxidation reaction zone and a membrane filtration catalytic reaction zone which are arranged in sequence, the ozone catalytic oxidation reaction zone contains an ozone catalyst A, and the membrane filtration catalytic reaction zone is provided with an ozone ceramic membrane I; the secondary ozone reactor comprises an ozone catalytic oxidation reaction zone and a membrane filtration catalytic reaction zone which are arranged in sequence, the ozone catalytic oxidation reaction zone contains an ozone catalyst B, and the membrane filtration catalytic reaction zone is provided with an ozone ceramic membrane II. According to the system, specific catalysts of the first-stage ozone reactor and the second-stage ozone reactor are arranged, so that the effects of catalytic ozonation and membrane catalytic ozonation are synergistically exerted, the sewage treatment effect can be improved, the effluent quality is good, and the residual amount of ozone is low.
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Citation Information

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