Composting method for biologically dehydrating livestock manure

Abstract

The invention provides a composting method for biologically dehydrating livestock manure, which comprises the following steps: under the condition of adding biological fermentation strains, horizontally laying the livestock manure, adding fly maggots for fermenting, and then, adding the livestock manure and biological fermentation strains in batches, wherein the fermentation period is 3-7 days, and the fermentation condition is 22-42 DEG C. The invention also provides a composting method for biologically dehydrating the livestock manure, which comprises the following steps: under the condition of adding the biological fermentation strains, horizontally laying the livestock manure, and then, adding the fly maggots for fermenting, wherein the fermentation period is 7-12 days, and the fermentation condition is 10-22 DEG C. The invention reduces the initial water content of livestock manure composting by microbiological synergistic action, fully performs the action of composting fermentation strains, does not need to add auxiliary materials for regulating the water content of the livestock manure, reduces the treatment cost of the livestock manure, and improves the composting quality. Meanwhile, the culture of fly maggots provides a large amount of high-quality feed protein and raw materials for further processing to better recycle organic wastes, thereby realizing the purposes of protecting environment and increasing efficiency and yield agriculturally.

Description

technical field [0001] The invention relates to the field of livestock and poultry breeding solid waste treatment, in particular to a composting method for biologically dehydrating livestock and poultry manure by utilizing fly maggots. Background technique [0002] With the rapid development of my country's animal husbandry, the number of dairy cows, pigs and poultry breeding in the country has increased year by year, and the amount of intensive scale farming has grown faster. At present, the annual livestock and poultry manure produced in the country is as high as 2.7 billion tons, and there is still a trend of increasing year by year. Therefore, solving the pollution problem of livestock and poultry breeding is still a very difficult task in the field of agricultural non-point source pollution control and ecological environment protection. Composting, as one of the important technical means for resourceful and harmless treatment of livestock and poultry manure, has always...

AI Technical Summary

Problems solved by technology

At present, people try to replace fish meal with soybean products, cottonseed meal, corn distillers dried grains and solubles (DDGS), meat and bone meal and livestock and poultry waste, but these substitutes have many shortcomings, such as lysine and methionine in DDGS Deficiency of trypsin inhibitors and phytic acid and other anti-nutritional factors in bean products, defects of amino acid types in processed by-products (livestock and poultry waste and hydrolyzed feather meal lack lysine, meat and bone meal, blood meal and hydrolyzed feather meal lack methionine , lack of isoleucine in blood meal)

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