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Waste gas treatment system and method used for livestock farm

A technology for waste gas treatment and breeding farms, applied in the field of breeding, can solve problems such as endangering the health of animals and breeders, air pollution, and affecting the living environment of animals, and achieve the effect of preventing odor from polluting the air

Pending Publication Date: 2018-03-06
河北益微生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These exhaust gases seriously affect the living environment of animals, endanger the health of animals and breeders, and are directly discharged into the atmosphere, causing air pollution

Method used

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  • Waste gas treatment system and method used for livestock farm
  • Waste gas treatment system and method used for livestock farm
  • Waste gas treatment system and method used for livestock farm

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Experimental program
Comparison scheme
Effect test

Embodiment approach

[0055] According to one embodiment of the exhaust gas treatment system of the present invention, the biological oxidation device includes: a circulation pool, in which a circulating biological suspension is provided for absorbing waste gas; an absorption chamber, which is placed in the circulation pool, absorbs The chamber is equipped with porous fillers loaded with microorganisms. The porous fillers are composed of volcanic stone, zeolite, ceramsite and sawdust particles in a weight ratio of 3:2:1:1. The moisture content of the porous fillers is 30-60%. The microorganism is Bacillus, which is used to absorb and oxidize ammonia, hydrogen sulfide, methyl mercaptan, methyl sulfide, dimethyl disulfide and trimethylamine in the exhaust gas entering the absorption chamber from the biological water curtain device.

[0056] According to the exhaust gas treatment system for farms of the present invention, a biological water curtain device is firstly provided. Although there are wave-li...

Embodiment 1

[0076] For a pig farm with a breeding scale of 30,000 heads, the waste gas treatment process includes the following steps:

[0077] Feed fermentation steps: mix feed with feed starter for fermentation, add feed starter 300g for every 100 kg of feed, then add appropriate amount of nutritional regulator calcium carbonate, calcium carbonate is used as acid-base regulator, control water content at 65-75% In between, press the above-mentioned materials firmly, and seal them with a plastic film, put them in a container for fermentation, and carry out normal fermentation at an ambient temperature of 5-35°C. Generally, the fermentation treatment is 1-3 days in summer and the fermentation treatment in winter 5-15 days, ferment until a sour aroma is produced;

[0078] Animal intestinal microecological regulation steps: mix feed with mixed microbial feed additives, and / or mix water with mixed microbial feed additives, and then feed animals to regulate microbial content in animal intestin...

Embodiment 2

[0085] The exhaust gas treatment method in this embodiment is applicable to a pig farm with a breeding scale of 20,000 heads, and other steps are the same as in Embodiment 1.

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Abstract

The invention discloses a waste gas treatment system and method used for a livestock farm. The waste gas treatment system used for a livestock farm, disclosed by the invention, comprises a biologicalwater curtain device, a biological oxidization device, a UV waste gas photolysis device and an adsorption device, wherein the biological water curtain device is arranged at a waste gas outlet and is used for absorbing and degrading hydrotropic substances in waste gas; the biological oxidization device is connected with the biological water curtain device and used for absorbing and oxidizing ammonia gas, hydrogen sulfide and organic matters discharged from the biological water curtain device; the UV waste gas photolysis device is connected with the biological oxidization device and used for further degrading and transforming waste gas into micromolecules; and the adsorption device is connected with the UV waste gas photolysis device and used for adsorbing residual waste gas. The waste gas treatment method used for a livestock farm, disclosed by the invention, comprises the following steps: a step of adsorbing and degrading the hydrotropic substances; a step of biological oxidization; astep of UV waste gas photolysis; and an adsorbing step. The waste gas treatment system and treatment method disclosed by the invention can effectively remove more than 95% of the stink content in thewaste gas.

Description

technical field [0001] The invention relates to the field of breeding technology, in particular to a waste gas treatment system and treatment method for a breeding farm. Background technique [0002] With the rapid development of animal husbandry, the scale of breeding enterprises is also rapidly moving towards intensification and scale. [0003] At the same time, the intensive and large-scale breeding industry has exposed various problems, among which the most serious is the problem of environmental pollution. For example, some large-scale dairy farming enterprises, due to the large scale of breeding, have a breeding scale of more than 10,000 cows, and the manure produced by 10,000 cows can reach more than 70,000 tons per year. [0004] However, there are various problems with the commonly used treatment technologies for waste such as manure, animal carcasses, urine, water for washing and disinfection. For example: the method of fermenting feces to generate biogas, the fe...

Claims

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Application Information

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IPC IPC(8): B01D53/75B01D53/84B01D53/74B01D53/86
CPCB01D53/74B01D53/75B01D53/84B01D53/86B01D2251/95B01D2255/802B01D2258/0266B01D2259/804Y02A50/20
Inventor 张青云
Owner 河北益微生物技术有限公司