Tail end deodorization device for poultry and livestock excrement fermentation odor and deodorization method thereof

Abstract

The invention provides a tail end deodorization device for poultry and livestock excrement fermentation odor and a deodorization method thereof. The deodorization device comprises a negative pressurefan, a box body and a waste liquid collecting pool which are sequentially communicated, wherein the box body comprises an air inlet, a first deodorization unit, a second deodorization unit, a third deodorization unit, a fourth deodorization unit, a fifth deodorization unit and an air outlet which are positioned in the box body and are sequentially communicated in the horizontal direction; the first deodorization unit and the second deodorization unit are chemical deodorization sections; the third deodorization unit and the fourth deodorization unit are biological deodorization units; the fifthdeodorization unit is a physical deodorization section. Various deodorization methods are combined for removing the odor; various odor ingredients with different properties can be removed; the deodorization rate is high.

Description

technical field [0001] The invention relates to the field of harmless treatment of livestock and poultry waste, in particular to a terminal removal device and a deodorization method for the fermentation odor of livestock and poultry manure. Background technique [0002] Composting is one of the most effective harmless treatment methods for livestock and poultry manure and is widely used. The odor problem in the composting process has become a limiting factor for its application because it deteriorates the surrounding environment and affects the lives of the surrounding residents. Therefore, the treatment of composting odor is an essential link in the whole process of harmless treatment of livestock and poultry waste. Composting odor treatment can be decomposed into three links: source emission reduction, process emission reduction and terminal removal. Among them, the end-of-odor removal technology can be applied to a closed composting workshop, where the odor is collected...

AI Technical Summary

Problems solved by technology

The three deodorization methods have their own advantages in terms of odor removal. At the same time, they also have certain disadvantages, such as: chemical reaction method: that is, use sterilizing or disinfecting chemicals to kill bacteria or carry out detoxification with pen excrement and urine. Chemical reactions are used to deodorize, such as trichloroisocyanate, strong acid, strong alkali, etc. Although the deodorizing effect is good, it is harmful to humans and animals, and strict procedures must be followed when deodorizing; although biological deodorization methods can be very good Deodorization, but when a variety of bacteria are used together, some bacteria will be difficult to grow due to unsuitable fermentation conditions and insufficient competitiveness during mixed culture. Applied to deodorization work

Due to the various compositions and properties of compost odor, the effect of single odor removal methods such as biological deodorization, chemical deodorization or physical adsorption has certain limitations.

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