Method for treating excrement by using hermetia illucens and organic fertilizer prepared by method

Abstract

The invention discloses a method for treating excrement by using hermetia illucens. The method comprises the following steps: pretreating the excrement, namely proportioning a leaven with a degradation agent to prepare a microbial inoculum; preparing the excrement; weighing the microbial inoculum and sugar-containing coarse grain powder; mixing the sugar-containing coarse grain powder with the microbial inoculum, then adding the mixture into the excrement, stirring continuously, and performing sealed treatment on the mixture in a fermentation tank; inoculating larvae, namely horizontally paving the pretreated excrement, and inoculating the hatched hermetia illucens ova into the excrement; and performing material-worm separation, namely adding sawdust or / and rice bran powder into the material-worm mixture, and vibrating to separate out material residues and fresh worms, thereby obtaining an organic fertilizer prepared by the method. According to the method for treating the excrement by using the hermetia illucens and the organic fertilizer prepared by the method, the excrement is treated into a semi-fluid stage beneficial for eating by insect larvae, other nutrients are not needed, the treated excrement can be used as the organic fertilizer which is high in conversion rate, and meanwhile, one ton of the excrement is high in larva yield, so that the cost is reduced, the environmental pollution is reduced, and a high-value organic fertilizer rich in insect protein and nutrition is obtained.

Description

technical field [0001] The invention belongs to the technical field of excrement treatment, and in particular relates to a method for treating excrement by using black soldier flies and an organic fertilizer prepared therefrom. Background technique [0002] At present, as people's awareness of environmental protection is getting stronger and stronger, the problems of environmental pollution and resources have received great attention from people, rational use of resources, turning waste into wealth, and recycling of resources. In the breeding industry, industries such as black soldier flies, fly maggots and earthworms have sprung up. In particular, black soldier flies can effectively convert the feces excreted by livestock into organic fertilizers, and at the same time produce high-quality protein. [0003] In the prior art, the eggs are often inserted into the feces, and after the eggs hatch, the larvae feed on the feces, thereby realizing the treatment of the feces. Howeve...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the eggs are often inserted into the feces, and after the eggs hatch, the larvae feed on the feces, thereby realizing the treatment of the feces. However, due to the degeneration of the mouthparts of the insect larvae, the existing technology The solution is often to feed the feces directly to the larvae, which is not convenient for the larvae to eat, and is not conducive to the digestion and absorption of the larvae, which will greatly reduce the efficiency of manure processing and the yield of organic fertilizer, reduce the yield of larvae, and thus affect the yield of insect protein and quality, and some in order to pursue the quality and output of insect larvae, then directly add various nutrients to the feces: such as meat and bone meal, feather meal, blood globulin powder, etc., so that the cost and cost of manure treatment are correspondingly increased. Cost of Farming Insect Larvae