Biological deodorizing device

Abstract

The biological deodorizing device in waste gas purifying system features that waste gas is made to pass through two serially connected filters with water spraying device for contacting with water and microbe and being spray treated with the sprayed water in ether quantitative and continuous mode or timing and intermittent mode. The present invention has high purifying effect.

Description

technical field [0001] The invention relates to a biological deodorization device, in particular to a biological deodorization device using an aerobic microbial deodorization method in a high-concentration malodorous component organic waste gas purification system. Background technique [0002] In the process of sewage treatment, sludge treatment, and excrement treatment, the organic waste gas with high concentration of malodorous components discharged from it; hydrogen sulfide, ammonia, trimethylamine, methyl mercaptan, carbon disulfide, A considerable part of styrene, methyl sulfide, dimethyl disulfide, etc. are substances that belong to the components of nitrifying bacteria and sulfur bacteria; use the dissolution of water and the oxidative decomposition ability of aerobic microorganisms to oxidize the organic waste gas of malodorous components The biological filtration and deodorization device that decomposes and achieves the purpose of deodorization. The two sets of fil...

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Problems solved by technology

[0002] In the process of sewage treatment, sludge treatment, and excrement treatment, the organic waste gas with high concentration of malodorous components discharged from it; hydrogen sulfide, ammonia, trimethylamine, methyl mercaptan, carbon disulfide, A considerable part of styrene, methyl sulfide, dimethyl disulfide, etc. are substances that belong to the components of nitrifying bacteria and sulfur bacteria; use the dissolution of water and the oxidative decomposition ability of aerobic microorganisms to oxidize the organic waste gas of malodorous components The biological filtration and deodorization device that decomposes and achieves the purpose of deodorization. The two sets of filled carriers in the device are carriers made of a combination of microporous ceramics made by sintering methods, coke and synthetic resins. Most In the form of parallel combination; the upper part of the two sets of filling boxes is equipped with a spray sprinkler device, and the lower part is equipped with a circulating treatment water tank for storing circulating treatment water. The dissolution of the spray water and the oxidation and decomposition by aerobic microorganisms into less odorous or odorless gases for discharge; because the carrier has a large water adsorption capacity, the carrier needs a large amount of water to maintain its certain humidity, which makes the carrier The increase in the weight of the air flow caused the increase in the ventilation load and the increase in the wind resistance, which resulted in the increase in the operating cost of the biological filtration and deodorization device; in the treated waste gas, the moisture contained in it is in a saturated state, and at the same time Contains gases such as methyl mercaptan, styrene, methyl sulfide, and dimethyl disulfide, which are difficult to handle in organic waste gas. These saturated gases without dehumidification treatment are discharged into the atmosphere together with gases containing traces of malodorous components. In the past, a small amount of malodorous component gas can be smelled in the close range of the sewage treatment plant, and the discharge standard for complete deodorization has not been fully met

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