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Kitchen waste recycling treatment method by hermetia illucens

A technology for kitchen waste and black soldier flies, which is applied in the field of resource treatment of kitchen waste, can solve the problems of non-conformity with circular economy and sustainable development, long cycle, environmental pollution, etc. short time effect

Inactive Publication Date: 2017-05-31
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both the composting method and the fermentation hydrogen production method have problems such as long cycle, low efficiency, and low degree of resource utilization.
However, the direct landfill and incineration methods will cause environmental pollution and do not conform to the concept of circular economy and sustainable development.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Sorting paper towels, toothpicks and other sundries in 2 kg of kitchen waste; mixing them with rapeseed meal at a mass ratio of about 1:1.5, so that the mass percentage of the water content of the mixture reaches about 40%; The mixture of garbage and rapeseed meal was crushed until the particle size was below 3 mm; the mixture was sterilized at 121 °C for 15 minutes, cooled to room temperature, and inoculated with activated Bacillus licheniformis (Bacillus licheniformis) at a ratio of 10% (v / w). ) culture medium, fermented at 37 °C for 1 day; then sterilized at 121 °C for 15 minutes, cooled to room temperature and inoculated with activated Saccharomyces cerevisiae (Saccharomyces cerevisiae) culture medium at a ratio of 5% (v / w), at 28 °C Continue the fermentation for 5 days; add 0.5 kg of the fermented mixture to 0.5 kg of black soldier fly larvae (Hermetia illucens L.), and raise them at 27 °C. The process lasts for about 10 days. When the black soldier fly larvae beco...

Embodiment 2

[0020] Sorting paper towels, toothpicks and other debris from 5 kg of kitchen waste; mixing them with cottonseed meal at a mass ratio of about 1:1, so that the mass percentage of the water content of the mixture reaches about 50%; kitchen waste and The mixture of cottonseed meal is crushed to a particle size below 3 mm; the mixture is sterilized at 121 °C for 15 minutes, cooled to room temperature, and inoculated with activated Bacillus licheniformis (Bacillus licheniformis) culture solution at a ratio of 2% (v / w) , fermented at 37°C for 3 days; then sterilized at 121°C for 15 minutes, cooled to room temperature, inoculated with activated Saccharomyces cerevisiae culture medium at a ratio of 10% (v / w), and continued fermentation at 28°C for 2 days; 2.5 kg of the fermented mixture was added to 0.5 kg of black soldier fly larvae (Hermetia illucens L.), and reared at 27 °C. During the feeding process, the fermentation product was appropriately added depending on the feeding situat...

Embodiment 3

[0022] Sorting paper towels, toothpicks and other debris from 3 kg of kitchen waste; mixing them with soybean meal at a mass ratio of about 1:0.6 to make the water content of the mixture reach about 60% by mass; separating the kitchen waste and soybean meal The mixture was crushed to a particle size below 3 mm; the mixture was sterilized at 121 °C for 15 minutes, cooled to room temperature, and then inoculated with activated Bacillus licheniformis (Bacillus licheniformis) culture solution at a ratio of 6% (v / w). Ferment at 37°C for 2 days; then sterilize at 121°C for 15 minutes, cool to room temperature and inoculate the activated Saccharomyces cerevisiae culture solution at a ratio of 8% (v / w), and continue to ferment at 28°C for 3 days; Add 1 kg of the fermented mixture to 0.5 kg of black soldier fly larvae (Hermetia illucens L.), and raise them at 27 °C. During the feeding process, the fermentation products are added appropriately depending on the feeding situation of the bl...

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PUM

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Abstract

The invention discloses a kitchen waste recycling treatment method by hermetia illucens, and belongs to the field of solid waste treatment. The method includes the steps: (1) removing tissues, toothpicks and the like in kitchen waste; (2) adding oil meals into the kitchen waste according to a certain proportion to adjust moisture content; (3) performing coarse crushing for mixture of the kitchen waste and the oil meals; (4) performing solid state fermentation for crushed mixture of the kitchen waste and the oil meals by the aid of bacillus licheniformis; (5) continuously fermenting products fermented by the bacillus licheniformis by the aid of saccharomyces cerevisiae; (6) placing hermetia illucens larvae into the fermented mixture according to a certain proportion to feed; (7) collecting the hermetia illucens larvae, larva sand and the fermented products without being eaten up after feeding period finishes. By the treatment method, odor of the kitchen waste is greatly improved, and nutritive values are improved.

Description

technical field [0001] The invention belongs to the technical field of kitchen waste treatment, and in particular relates to a resource treatment method for kitchen waste. Background technique [0002] Kitchen waste mainly refers to the organic waste generated in the catering industry, canteens and family cooking and dining, and generally includes leftovers, kitchen raw material scraps, melon peel and fruit scraps, etc. Food waste is rich in nutrients and high in water content, and it is easy to breed bacteria and cause decay and deterioration, resulting in a pungent odor. According to statistics, the annual output of urban kitchen waste in my country has exceeded 60 million tons, which has become the "enemy" of urban development. Solving the problem of kitchen waste has become a social issue of public concern. [0003] At present, the treatment methods of food waste mainly include composting, hydrogen production by fermentation, direct landfill, and incineration. Both the...

Claims

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Application Information

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IPC IPC(8): A01K67/033A23K10/20A23K10/26A23K10/10C05F9/00C05F17/00C05F11/08
CPCA01K67/033C05F9/00C05F11/08C05F17/05C05F17/50Y02A40/20Y02W30/40
Inventor 何荣海张亦飞代春华任晓锋马海乐
Owner JIANGSU UNIV
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