Breeding pollution discharge treatment system and treatment method thereof

Abstract

The invention discloses a breeding pollution discharge treatment system and a treatment method thereof. The breeding pollution discharge treatment system comprises a primary solid-liquid separation apparatus, a liquid waste treatment system, a highly concentrated slurry treatment system, and an organic fertilizer processing system. In the invention, concentration-type separation is carried out on breeding waste according to commercial value. Anaerobic biogas treatment is carried out on low-concentration slagless liquid waste which can be then returned to farmland for utilization. Solid-liquid separation is carried out on the waste material of high-concentration slurries after anaerobic biogas treatment for producing high-concentration liquid and solid commercial fertilizers. The breeding pollution discharge treatment system can be constructed together with a farm and can be nearby used, and is suitable for the treatment of the breeding waste of large and medium-sized livestock such as cattle, sheep, pigs, and the like and organic garbage. Compared with the method of on-site discharge and transport treatment, the system and the method of the invention can realize more thorough waste utilization, can provide irrigation water and commercial fertilizer raw materials while proving biogas, can reduce breeding cost, and can eliminate adverse influence on surrounding environment caused by breeding pollution discharge.

Description

technical field [0001] The invention relates to an auxiliary system for animal husbandry and breeding, in particular to a breeding sewage treatment system and a treatment method. Background technique [0002] The aquaculture industry not only provides more industrial raw materials, but also provides rich food such as meat, milk, eggs, etc. for people's daily life, and will eventually provide draft animals and manure for agriculture; therefore, the aquaculture industry is an indispensable pillar industry of the country. Due to the gradual scarcity of land resources, captive breeding is more commonly used in breeding, and sewage discharge has gradually become a difficult problem in the breeding industry. Especially for large and medium-sized livestock breeding such as cattle and sheep, the cost of discharging waste liquid such as feces and urine accounts for a large part of the breeding cost. larger proportions. For the treatment of excrement, etc., most of them use the treat...

AI Technical Summary

Problems solved by technology

For the treatment of excrement, etc., most of them use the treatment method of fermenting excrement and using it as farmyard manure. During the whole process, it needs to be transported to a designated place for fermentation treatment, and after fermentation, it is transported to a designated farmland for use as farmyard manure; including The transportation and fermentation cycle is longer, the cost is higher, and it occupies a larger land area; in addition, the excrement is directly transported to some places for random stacking, which will also increase the transportation cost and occupy an area, and will affect the surrounding environment. create pollution

Especially for waste liquids such as urine and flushing fluid, the discharge and transportation of feces and urine are extremely inconvenient. If they are discharged on site, they will cause a wide range of environmental pollution, and due to their evaporative properties, direct discharge is often used. , causing extremely bad impact on the surrounding environment, and the impact range is relatively large

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