Method for eliminating food rubbish

A technology of food waste and compost, applied in climate change adaptation, organic fertilizer, animal husbandry, etc., can solve problems such as difficult incineration, difficult tail gas treatment, slow processing speed, etc., to achieve environmental protection, without changing the nature of land use, The effect of low processing cost

Inactive Publication Date: 2010-07-14
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Sanitary landfill has the largest treatment capacity, relatively low operating costs, relatively simple process, and low investment. It is the final digestion method for residues produced by other treatment methods. The requirements are high, and water and air pollution cannot be completely solved; the incineration method has a high degree of reduction, the calorific value of garbage can be utilized, the degree of ground harmlessness is high, the land occupation is small, and the capacity reduction is large, up to 70-80%. This method requires large investment, high operating costs, hig

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Collect the sorted food waste in paper bags, after crushing, add appropriate amount of auxiliary materials, stir evenly, and prepare culture materials. Pour the culture material into the corresponding container, the height of the culture material is 4cm, and insert an appropriate amount of housefly eggs on the surface of the culture material, and the egg density is: 0.2g housefly eggs / kg culture material. Housefly eggs hatched into larvae on the 2nd day and began to feed on compost. On the 4th day, set a larger container outside the culture container and sprinkle dry rice bran powder in it to facilitate the collection of housefly maggots. After 5-6 days, the housefly larvae have reached the mature state, and they climbed out of the compost and fell into a larger container. The compost turned dark brown, the material was loose, and the odor was reduced. It was dried to make bio-organic fertilizer.

[0022] The formulation of the culture medium is shown in Table 1.

[0...

Embodiment 2

[0026] Collect the sorted food waste in paper bags, after crushing, add appropriate amount of auxiliary materials, stir evenly, and prepare culture materials. Pour the culture material into the corresponding container, the height of the culture material is 6cm, and insert an appropriate amount of housefly eggs on the surface of the culture material, and the egg density is: 0.6g housefly eggs / kg culture material. Housefly eggs hatched into larvae on the 2nd day and began to feed on compost. On the 4th day, set a larger container outside the culture container and sprinkle dry rice bran powder in it to facilitate the collection of housefly maggots. After 5-6 days, the housefly larvae have reached the mature state, and they climbed out of the compost and fell into a larger container. The compost turned dark brown, the material was loose, and the odor was reduced. It was dried to make bio-organic fertilizer.

[0027] The formulation of the culture material is shown in Table 2.

...

Embodiment 3

[0031] Collect the sorted food waste in paper bags, after crushing, add appropriate amount of auxiliary materials, stir evenly, and prepare culture materials. Pour the culture material into the corresponding container, the height of the culture material is 8cm, and insert an appropriate amount of housefly eggs on the surface of the culture material, and the egg density is: 1g housefly eggs / kg culture material. Housefly eggs hatched into larvae on the 2nd day and began to feed on compost. On the 4th day, set a larger container outside the culture container and sprinkle dry rice bran powder in it to facilitate the collection of housefly maggots. After 5-6 days, the housefly larvae have reached the mature state, and they climbed out of the compost and fell into a larger container. The compost turned dark brown, the material was loose, and the odor was reduced. It was dried to make bio-organic fertilizer.

[0032] The formulation of the culture material is shown in Table 3.

[0...

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PUM

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Abstract

The invention discloses a method for eliminating food rubbish. The method comprises the following steps of: breaking the food rubbish after being classified, adding auxiliary materials so as to acquire a food rubbish breeding material, putting the food rubbish breeding material in housefly eggs and making the larva hatched from the housefly egg eat the breeding material till the food rubbish is eliminated. The food rubbish breeding material comprises 50 to 90 wt.% of food rubbish, 0 to 40 wt.% of saw dust, 0 to 30 wt.% of rice bran powder, 0 to 30 wt.% of bran, 0 to 40 wt.% of straw powder, 1 to 5 wt.% of yeast powder, 1 to 3 wt.% of EM liquid, 0 to 3 wt.% of baking soda and 0 to 3 wt.% of slaked lime. The food rubbish is eliminated by adding housefly eggs in the food rubbish breeding material and making the larva hatched from the housefly egg eat the breeding material. By performing harmless treatment on the food rubbish by using the housefly maggot, the method of the invention greatly decreases the capacity of the municipal solid waste, the generated housefly maggot biologic protein and the microbial organic fertilizer can realize the recycling of resource and the environment is protected.

Description

technical field [0001] The invention relates to the field of garbage removal, in particular to a method for removing food garbage. Background technique [0002] Urban food waste accounts for about 40-50% of the total amount of urban waste. If it is stored for a long time, it will breed germs, mosquitoes, and cockroaches, increase kitchen odor, and affect the health of residents and the home environment. Food waste is a difficult point in municipal solid waste disposal. At present, the main treatment methods of urban food waste are sanitary landfill and incineration, and a small part is treated by composting. [0003] Sanitary landfill has the largest treatment capacity, relatively low operating costs, relatively simple process, and low investment. It is the final digestion method for residues produced by other treatment methods. The requirements are high, and water and air pollution cannot be completely solved; the incineration method has a high degree of reduction, the ca...

Claims

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Application Information

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IPC IPC(8): C05F9/04A01K67/033
CPCY02A40/20
Inventor 胡新军张古忍
Owner SUN YAT SEN UNIV
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