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| Deodorization Technology of Livestock and Poultry Scale Farms |
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| DOI：10.16768/j.issn.1004-874X.2020.04.015 |
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| Abstract: |
| The sources of odors in livestock and poultry farms are diverse and the components are complex. With the large-scale and intensive development of livestock and poultry breeding, the pollution of livestock and poultry manure is becoming increasingly serious. However, with the development of animal husbandry and the improvement of people’s environmental protection awareness, the environmental requirements for large-scale livestock and poultry farms are getting higher, and the livestock and poultry breeding industry should shift to green production modes. In order to reduce the pollution of manure to the environment and the harm to humans and animals, it is particularly important to treat the manure of livestock and poultry appropriately. Therefore, it is of great significance to study the odor and emission reduction regulation technology of large-scale livestock farms. This article introduces the research progress in the sources, main components, hazards and reduction control technologies of malodorous gases in large-scale livestock farms. It focuses on the malodorous ectopic control technology and in situ control technology. It is believed that the microbial deodorization technology has evident advantages in livestock and poultry production, with strong ability to adapt to the environment, wide application range, and long-lasting deodorization effect. Microbes can greatly degrade the ammonia nitrogen, hydrogen sulfide and other harmful substances produced by the manure, and eliminate the odors in the breeding farm. Although the biological deodorization method has many advantages, it has certain limitations to the treatment of some high-concentration malodorous substances. In order to promote the sustainable development of China’s largescale livestock and poultry breeding farms, the solving of odor problems cannot rely on a single deodorization technology, while the comprehensive use of multiple deodorization technologies can achieve better results only. |
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