| abstract |
The invention belongs to the technical field of tail gas treatment, and particularly relates to a method for purifying tail gas generated in fermented feed production. The invention adopts a four-step continuous treatment method, namely, dust, volatile organic acid, hydrogen sulfide gas, alcohol, ester and other odor gases are respectively purified by cloth bag dust removal, alkali liquor absorption, high-pressure spray adsorption and biological liquid spray. The process has the advantages of high removal rate of the peculiar smell of the tail gas, low cost, high efficiency, environmental protection and no secondary pollution, and is suitable for large-scale popularization and application in the fermented feed industry. |