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Kitchen waste disposal system and method based on insect breeding

A technology of food waste and treatment method, which is applied in the field of food waste treatment system based on insect breeding, can solve the problems of reducing the conversion efficiency of food waste, difficult to remove feces, and food waste is perishable

Inactive Publication Date: 2021-04-30
SHENZHEN ZE HENGXI ENVIRONMENT PROTECTION CO LTD
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Problems solved by technology

However, food waste is extremely perishable, and rotten food waste can affect the digestion and absorption of insects; in addition, food waste has a high moisture content and is in the form of a slurry, making food waste and insect droppings easy to adhere to insects. On the surface, this will affect the feeding activity of insects, and it is not easy to remove feces during the harvesting process of older larvae, which greatly reduces the conversion efficiency of food waste and the breeding efficiency of insects. Odor will be generated, if the odor is not treated, it will pollute the air

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0028] Kitchen waste feeding is suitable for insects (maggots, black soldier flies, earthworms), and usually the largest amount of feeding is black soldier flies, taking black soldier flies as an example: the fine feeding period is 3 days → the rough feeding period is 10 days Young larvae → old larvae → Pupa → adult. During the young and old larvae of the black soldier fly, they are fed with kitchen waste in the breeding workshop. When the black soldier fly becomes a pupa or adult stage, it is usually not necessary to feed, but the old larvae have higher protein content and are more economical. value. like figure 1 As shown, it is a schematic flow diagram of the kitchen waste treatment method based on insect breeding of the present invention, and the specific method in...

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Abstract

The invention relates to a kitchen waste disposal method based on insect breeding. The method comprises the following steps: carrying out hydrothermal treatment on kitchen waste, carrying out three-phase separation on the treated kitchen waste, and separating out water, oil and slurry waste; adding biological bacteria and auxiliary materials into the obtained slurry waste, and conducting stirring and mixing to obtain a mixture; conveying the mixture waste into an insect breeding workshop to serve as feed for insect larvae for insect breeding, and after the insect larvae grow into older insect larvae, separating the older insect larvae from feculae; and finally, carrying out aerobic composting treatment on the obtained feculae to form the organic fertilizer. According to the method, the kitchen waste can be effectively disposed without consuming extra resources and energy, secondary pollution to the environment is avoided, the insect breeding efficiency is improved by adding the biological bacteria and the auxiliary materials, odor in the breeding workshop is deodorized through the fecula pile serving as a natural deodorizer, and the atmosphere is prevented from being polluted.

Description

technical field [0001] The invention relates to the field of kitchen waste treatment, in particular to a system and method for treating kitchen waste based on insect breeding. Background technique [0002] As an important part of urban waste, food waste is easy to breed viruses, bacteria, mosquitoes and cockroaches when stored for a long time, affecting the urban environment and the health of residents. Landfill and incineration are the most common ways to deal with kitchen waste, which are likely to cause secondary pollution to the environment. [0003] At present, there are some biogas produced by fermenting food waste, so as to realize the treatment of food waste. However, a large amount of water needs to be used in the process of biogas production, and the sewage generated after fermentation will also cause secondary pollution to the environment. In addition, there have also been insect breeding using food waste, such as breeding black soldier flies with high economic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00
CPCB09B3/00B09B5/00Y02W30/78
Inventor 林海陆许俊杰林宏滨林泽瀚
Owner SHENZHEN ZE HENGXI ENVIRONMENT PROTECTION CO LTD
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