Equipment and method for harmlessly producing bio-fertilizer from livestock and poultry manure

Abstract

The invention relates to equipment and a method for harmlessly producing a bio-fertilizer from livestock and poultry manure. The equipment comprises a first treatment bin, a second treatment bin, a first aeration device, a second aeration device, a third aeration device, a conveying device and a solid-liquid separator; an inlet of the solid-liquid separator is communicated into the second treatment bin, and a liquid outlet of the solid-liquid separator is communicated into the third treatment bin. According to the invention, the liquid excrement is subjected to stirring treatment and aerationtreatment for multiple times, so that fermentation conditions such as nutrient substances, dissolved oxygen, temperature and PH of the liquid excrement can be optimized, aerobic microorganisms in theliquid excrement can be rapidly propagated, and nitrogen and phosphorus compounds and other malodorous substances in the liquid excrement are effectively decomposed. Moreover, heat generated by aerobic microorganisms enables the temperature of the liquid fertilizer to rise and kills low-temperature germs, so that the produced biological fertilizer is more environment-friendly, the cost is reduced,and the environment is not polluted.

Description

technical field [0001] The present application relates to the technical field of livestock and poultry excrement treatment, and more specifically, relates to an equipment and method for harmless production of biological fertilizers from livestock and poultry excrement. Background technique [0002] my country is a large livestock and poultry breeding country. The aquaculture industry has contributed to the improvement of people's living standards, but also produces a large amount of livestock and poultry manure. A large amount of livestock and poultry manure is directly discharged into the environment without treatment, directly endangering the ecological environment and human health, and affecting the sustainable development of the livestock and poultry industry. Therefore, it is urgent to prevent and control livestock and poultry manure pollution. [0003] The existing technology basically separates the dry and wet feces and treats them separately. The dry feces are compos...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems existing in the related technologies at least to a certain extent, the purpose of this application is to provide a kind of equipment and method for the harmless production of bio-fertilizers from livestock and poultry manure, which can solve the problem of the high cost of existing livestock and poultry manure treatment. , and will cause pollution to the environment

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