Treatment method of kitchen waste

A kitchen waste and treatment method technology, applied in the field of waste resource recycling, can solve the problems of complicated process, increased treatment cost, high energy consumption, etc.

Pending Publication Date: 2017-12-01
刘德江
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent application number 2014102429308 introduces a device for breeding black soldier flies by eating kitchen waste, which has poor practicability
CN102350433A introduces a process for processing kitchen waste by black soldier flies. It is essentially a device, and a large amount of auxiliary materials need to be added in the processing process (the ratio of food waste: auxiliary materials is 1:0.25~1) to increase the processing efficiency. cost
CN103736709A Automatic sorting, oil-water separation, fermentation and drying of kitchen waste to obtain granular materials to feed insects, the process is complicated, energy consumption is high, and economic benefit is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1,000 kg of kitchen waste, after sorting out materials that black soldier flies do not eat, such as glass, ceramics, bamboo chopsticks, plastics, and fabrics, make 940 kg of fine slurry and place it in a bioconverter. Insert 1 kg of deodorizing bacteria and 15 kg of 2nd instar black soldier fly larvae into the biotransformer. Control the temperature in the bioconverter to be 32°C and the humidity to be 65%. The kitchen waste slurry was converted in the converter for 8 days. The materials in the bioconverter were sieved to separate 210 kg of black soldier fly larvae and 305 kg of organic fertilizer. Black soldier fly larvae are dried and pulverized to obtain 65 kg of black soldier fly protein powder. The black soldier fly protein powder contains 44% protein, 32% fat, 7% crude fiber, 4.9% calcium and 0.60% phosphorus.

Embodiment 2

[0028] 200 kg of kitchen waste, sort out the material that the black soldier flies do not eat, make 190 kg of fine slurry, and put it in the bio-converter. Insert 0.2 kg of deodorizing bacteria and 3 kg of 2nd instar black soldier fly larvae into the biotransformer. Control the temperature in the bioconverter to be 29°C and the humidity to be 73%. The kitchen waste slurry is converted in the converter for 10 days. The materials in the bioconverter were sieved to separate 45 kg of black soldier fly larvae and 63 kg of organic fertilizer. Black soldier fly larvae are dried and pulverized to obtain 15 kg of black soldier fly protein powder. The black soldier fly protein powder contains 42.5% protein, 31.5% fat, 6.2% crude fiber, 5.0% calcium and 0.63% phosphorus.

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Abstract

The present invention relates to a treatment method of kitchen waste. The treatment method comprises the following steps: materials not eaten by hermetia illucens in the kitchen waste are sorted out, no dehydration and oil separation is conducted, and the kitchen waste is directly crushed into a kitchen waste slurry material at a particle size smaller than or equal to 3 mm, and a water content of the slurry material is 75-90%; the kitchen waste slurry material is placed in a bio-converter and deodorizing microorganisms and hermetia illucens larvae are inoculated; a temperature of the bio-converter is controlled at 25-35 DEG C and an air relative humidity is controlled at 60-75%; the kitchen waste slurry material in the bio-converter is subjected to a hermetia illucens abdomen digestion for 8-10 days to be converted into an organic fertilizer; and the hermetia illucens larvae and organic fertilizer in the bio-converter are sieved into the hermetia illucens larvae and organic fertilizer. The treatment method is simple, practical and highly efficient, free of productions of waste water during the whole treatment processes, low in electricity consumption, only has the electricity consumption of 30 degrees for handling one ton of the kitchen waste, can convert all organic matters of the kitchen waste, and realizes a reduced, harmless and recycling utilization.

Description

technical field [0001] The invention relates to a kitchen waste treatment method, which belongs to the field of recycling and utilization of waste resources. Background technique [0002] Most of the existing kitchen waste is mixed with domestic waste and discarded or landfilled. Kitchen waste is rich in organic matter, high in water content and rich in organic matter, which is easily corrupted. Corrupted kitchen waste will pollute the environment. There are landfill methods, composting methods, incineration methods, fermented feed methods, and biogas fermentation methods to deal with kitchen waste. These methods all have problems of one kind or another to varying degrees. From an economic point of view, the economic benefits produced by these methods are relatively poor, and the resource utilization rate is low. The landfill method takes up a large amount of valuable land resources, and this treatment method neither reduces the amount nor completely eliminates the hazard....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/90A23K10/20A23K20/142C05F9/00
CPCC05F9/00Y02A40/20
Inventor 范峻彤刘一刘德江
Owner 刘德江
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