Silkworm breeding and silkworm excrement harmless composting treatment method

Abstract

The invention relates to silkworm breeding and silkworm excrement harmless composting treatment method, which comprises the following steps: performing disinfection with a microbial agent A in a silkworm breeding process, and performing harmless treatment with a microbial agent B during silkworm excrement composting treatment, wherein the microbial agent A is prepared from a composite microorganism and a zeolite powder; the composite microorganism is composed of bacillus subtilis, bacillus amyloliquefaciens, bacillus licheniformis, yeast and lactic acid bacteria; the microbial agent B is prepared from a composite microorganism and ferrous sulfate; the composite microorganism is composed of bacillus subtilis, bacillus amyloliquefaciens, bacillus licheniformis, yeast and actinomycetes. The invention can improve the cleanness of silkworm excrement on the basis of ensuring the disease prevention effect of silkworms and the silkworm breeding performance, and harmless and safe organic fertilizer meeting the national standard is obtained through the harmless treatment of the silkworm excrement.

Description

technical field [0001] The invention belongs to the technical field of comprehensive utilization of sericulture waste, and in particular relates to a microbial agent suitable for silkworm rearing and harmless composting of silkworm excrement and a use method thereof. Background technique [0002] Silkworm excrement is a general term for solid feces excreted by silkworm larvae, leftover mulberry and bedding in silkworm seats during sericulture. [0003] Silkworm excrement is rich in animal and plant nutritional components and active pharmaceutical components, and is a resource with good agricultural, industrial and medical value. For example, chlorophyll, pectin, lutein, carotenoids, phytoalcohol, leaf protein, alkaloids, etc. extracted from silkworm excrement are widely used in food, beverage, cosmetics, medicine and other fields; the dry matter of silkworm excrement Contains organic matter 77.68-81.15%, nitrogen (N) 2.97%, phosphorus (P 2 o 5 ) 1.03%, Potassium (K 2 O) ...

AI Technical Summary

Problems solved by technology

[0004] However, for a long time, in the process of silkworm rearing, in order to meet the needs of disinfection and disease prevention of silkworm bodies and silkworm seats, a large amount of inorganic disinfection drugs such as quicklime powder and formaldehyde powder have been used, so that the development and utilization of silkworm excrement in the later period has been greatly affected. limits

For example, when silkworm excrement is used to make organic fertilizer, due to the amount of lime applied, the pH value is too high, which does not meet the national organic fertilizer standards; when silkworm excrement is used to make animal feed, silkworm excrement contains a large amount of lime powder, which affects the quality of animals. It is a very complicated thing to remove the lime and other inorganic impurities in the silkworm excrement first; when using the silkworm excrement to ferment biogas, because the silkworm excrement contains a lot of lime, it is easy to cause the bottom of the biogas tank to harden, and it needs to be cleaned regularly. very troublesome

Moreover, the long-term use of these disinfectants will also cause potential harm to people's physical and mental health.

[0005] For a long time, after the end of silkworm breeding, people have simple treatment methods for silkworm excrement, extensive management methods, and low utilization rate. Most silkworm excrement wastes are piled up everywhere, or returned to the field without treatment.

Since there are various pathogenic microorganisms that are not inactivated and infectious to silkworms in silkworm excrement, silkworm excrement is randomly piled up or returned to the field without harmless treatment, which not only causes waste of resources, but also pollutes production and life. environment, it is very easy to cause the outbreak and spread of silkworm disease in silkworm areas

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