Large-scale livestock and poultry breeding excrement and urine separation ecological treatment system and construction method

Abstract

The invention discloses a scaled livestock and poultry cultivation manure and urine separated type ecological treating system and a constructing method. The ecological treating system comprises a manure and urine separating device, a primary settling tank, an anaerobic pretreating device, a paddy field or wetland and a pond. According to the ecological treating system, manure and urine separation and manure drying and cleaning are firstly performed on manure exhausted by livestock and poultry, manure is applied to composting and returned to field, urine is temporarily stored by the primary settling tank and pretreated by the anaerobic device, and then drained into the paddy field or the wetland to be purified, and finally deep purification is performed by the pond. As manure and urine separation and manure drying and cleaning are utilized, the problems of long period, high pollution concentration, large water volume and treating difficulty caused by jointly treating manure and urine in the past are solved; organisms and nitrogen and phosphorus elements in the manure are applied to crop fertilizer and aquatic plant growth; the whole livestock and poultry manure treating process is basically and completely finished in a sealed mode, and no pollution is generated to external environment; the ecological treating system and the constructing method which have the advantages of low cost, ecology, environmental friendliness and easiness in construction are provided for solving existing livestock and poultry cultivation pollution.

Description

technical field [0001] The present invention relates to a large-scale livestock and poultry breeding excrement and urine separation ecological treatment system, more specifically, to a large-scale livestock and poultry breeding excrement and urine separation ecological treatment system and a construction method that does not pollute the external environment . Background technique [0002] The rapid development of large-scale breeding industry has led to a sharp increase in the total amount of livestock and poultry manure pollution, and the degree of pollution has become increasingly serious in my country. The main hazards of environmental pollution caused by livestock and poultry farming are water pollution, odor emission, disease transmission and soil ecology damage. The non-point source pollution caused by livestock and poultry breeding contributes as much as 30% to the nitrogen and phosphorus in my country's water bodies, and has become the main source of pollution for t...

AI Technical Summary

Problems solved by technology

[0005] 2. Water pollution

Breeding sewage has had a great impact on the production and life of surrounding farmers, and some have posed a serious threat to centralized drinking water sources

[0006] 3. Air pollution

However, since the feces are not separated from the solid and liquid and directly enter the anaerobic reaction system, the concentration of feces, COD, SS and other pollutants in the sewage is much higher than that of the influent water quality of the environmentally friendly biogas project sewage, although the anaerobic fermentation can not achieve the standard The energy-friendly type is to treat the sewage through anaerobic and other methods, and discharge it after reaching the standard. It has the advantages of high efficiency of process treatment unit, standardized engineering, high level of management and operation automation, and wide application range. Low, high investment, the annual operating cost is higher than the income generated, no profit

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