Catalytic oxidation-based ozone deodorizing system

Abstract

The invention discloses a catalytic oxidation-based ozone deodorizing system. The catalytic oxidation-based ozone deodorizing system comprises a negative-pressure ozone reaction tower, a positive-pressure composite catalyst reaction tower, a pH aqueous solution adjustment circulation tank, a PLC microcomputer controller, an air oxygen-extraction system and an ozone generator. A composite catalyst is arranged in the positive-pressure composite catalyst reaction tower. The air oxygen-extraction system, the ozone generator, an induced draft fan and a booster pump are controlled by the PLC microcomputer controller. An alkaline aqueous solution having a pH value of 8-9 is arranged in the pH aqueous solution adjustment circulation tank. The catalytic oxidation-based ozone deodorizing system can realize complete oxidation removal of bad smell produced by production workshops and sewage treatment facilities of a chemical plant and a printing and dyeing mill, does not produce secondary pollution, solves atmosphere environmental protection problems and also solves occupational health and body and mind health problems of workers in the production field.

Description

technical field [0001] The invention relates to polluted air treatment technology, in particular to a catalytic oxidation ozone deodorization system. Background technique [0002] Generally, the odor produced by the production workshops of chemical plants, printing and dyeing plants and other enterprises and their sewage treatment facilities contains amine R 3 N, hydrogen sulfide H 2 S, methyl mercaptan CH 3 SH, dimethyl sulfide CH 3 SCH 3 , dimethyl disulfide CH 3 -S-S-CH 3 The harm of these organic compounds to the environment is mainly reflected in: long-term residue: once discharged into the environment, they are difficult to be decomposed; bioaccumulation: the concentration in the organism after being enriched by the biological food chain is much higher than that in the surrounding environment Concentration; semi-volatile: strong volatilization in the air, and can migrate long distances in the atmosphere; high toxicity: generally toxic to humans and animals, some ...

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Problems solved by technology

[0002] Usually, the odor produced by the production workshops of chemical plants, printing and dyeing plants and other enterprises and their sewage treatment facilities contains amine R 3 N, hydrogen sulfide H 2 S, methyl mercaptan CH 3 SH, dimethyl sulfide CH 3 SCH 3 , dimethyl disulfide CH 3 -S-S-CH 3 The harm of these organic compounds to the environment is mainly reflected in: long-term residue: once discharged into the environment, they are difficult to be decomposed; bioaccumulation: the concentration in the organism after being enriched by the biological food chain is much higher than that in the surrounding environment Concentration; semi-volatile: strong volatilization in the air, and can migrate long distances in the atmosphere; high toxicity: generally toxic to humans and animals, some can cause biological endocrine disorders, reproductive and immune dysfunction, and some Even cause serious diseases such as cancer, although most of these odorous substances can chemically react with ozone, thereby changing their molecular structure and chemical properties, making them lose their toxicity and odor, but there are also organic odorous substances that cannot react with ozone

[0003] Therefore, the current deodorization system through ozone deodorization cannot oxidize all organic odorous substances, and the cost is high, the energy consumption is high, the volume is large, the weight is heavy, and the operating cost is high, and the deodorization effect and efficiency are affected by seasons and ambient temperature. , especially the high energy consumption is no longer in line with the development model of energy saving and consumption reduction advocated by the state

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