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Method for treating kitchen waste

A technology for kitchen waste and a treatment method, which is applied in the field of kitchen waste treatment, can solve the problems of unreasonable salinity and water content carbon-nitrogen ratio, unfavorable treatment of black soldier fly larvae, etc. Effect

Inactive Publication Date: 2016-08-31
HUNAN CHUXIAN ENVIRONMENT PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an effective method for treating the existing kitchen waste which is unfavorable for the treatment of black soldier fly larvae due to excessive oil content, high salinity and water content, and unreasonable carbon-to-nitrogen ratio. Food waste treatment method that is beneficial to black soldier fly larvae to process food waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The kitchen waste disposal method of the present embodiment comprises the following steps:

[0024] (1) Use a screening machine to remove non-organic impurities that cannot be processed by black soldier fly larvae in kitchen waste, and measure its oil content (0.83wt%), salinity (0.65wt%), water content (70wt%) through random sampling %) and carbon-nitrogen ratio (23:1);

[0025] (2) Add rice straw (mass ratio of rice straw to kitchen waste: 1:4.5) to adjust carbon content, add chicken manure (mass ratio of chicken manure to kitchen waste: 1:1.8) to adjust nitrogen content, so as to Balanced nutrition;

[0026] (3) After mixing and crushing the materials obtained in step (2), place them in a homogeneous tank for stirring, and add fermentation strains (including photosynthetic bacteria, lactic acid bacteria, yeast strains, actinomycetes and nitrogen-fixing bacteria) Ferment for 30 hours to obtain mixed organic waste that meets the growth index of black soldier fly larv...

Embodiment 2

[0033] The kitchen waste disposal method of the present embodiment comprises the following steps:

[0034] (1) Use a screening machine to remove non-organic impurities in the kitchen waste that cannot be processed by black soldier flies, and measure the oil content (0.98wt%), salinity (0.77wt%), and water content (76wt%) through random sampling And carbon nitrogen ratio (20:1);

[0035] (2) Add a mixture of rotten fruits and vegetables and rice field straw to adjust the carbon content, wherein the mass ratio of rotten fruits and vegetables to rice field straw is 1:1, and the mass ratio of the mixture to food waste is 1:4.5; add pig manure and chicken manure The mixture of manure adjusts the nitrogen content, in which the mass ratio of pig manure to chicken manure is 1:1, and the mass ratio of this mixture to food waste is 1:1.8, so as to balance nutrition;

[0036] (3) After mixing and crushing the materials obtained in step (2), place them in a homogeneous tank for stirring,...

Embodiment 3

[0043] The kitchen waste disposal method of the present embodiment comprises the following steps:

[0044] (1) Use a screening machine to remove non-organic impurities in the kitchen waste that cannot be processed by black soldier flies, and measure the oil content (0.91wt%), salinity (0.71wt%), and water content (74wt%) through random sampling And carbon nitrogen ratio (21:1);

[0045] (2) Add rotten fruits and vegetables to adjust the carbon content. The mass ratio of rotten fruits and vegetables to kitchen waste is 1:3. Add pig manure to adjust the nitrogen content. The mass ratio of pig manure to kitchen waste is 1:2. Balanced nutrition;

[0046] (3) After mixing and crushing the materials obtained in step (2), place them in a homogeneous tank for stirring, and add fermentation strains (including photosynthetic bacteria, lactic acid bacteria, yeast strains, actinomycetes, and nitrogen-fixing bacteria) Ferment for 22 hours to obtain mixed organic waste that meets the grow...

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Abstract

The invention relates to a method for treating kitchen waste. The method comprises the following steps: (1) removing non-organic impurities which can not be treated and are of black soldier fly larvae in the kitchen waste, and then measuring the oil content, salinity, water content and carbon nitrogen ratio of the black soldier fly larvae; (2) adding rice field straw or / and rotten fruit, vegetables and the like for adjusting the content of carbon element, and adding poultry and livestock manure such as chicken manure or / and pig manure for adjusting the content of nitrogen element; (3) crushing the obtained mixture, putting into a homogeneous pool, stirring and fermenting to obtain a mixed organic waste which is in accordance with the growth indexes of the black soldier fly larvae; (4) inoculating the black soldier fly larvae; (5) treating the mixed organic waste under the conditions that the temperature is 26-28 DEG C, the relative humidity is 40-50% and the illumination intensity is lower than 25 lx; (6) separating out treatment residue and black soldier fly bodies; (7) treating the residue by means of natural compost to obtain an organic fertilizer. After the method is used for treating the kitchen waste, the treatment efficiency of the kitchen waste is improved, and the yield of the black soldier fly bodies is increased.

Description

technical field [0001] The invention relates to a method for treating kitchen waste. Background technique [0002] At present, the food waste treatment methods include solid-liquid separation of food waste, biodiesel treatment of liquid oil, and treatment of solid residues by black soldier fly larvae. Among them, due to the large investment in biodiesel equipment, general food waste treatment The factory cannot afford it, so it has great difficulty in processing the liquid oil in the kitchen waste. Moreover, because the oil will block the breathing holes of the black soldier fly larvae, resulting in anoxia of the larvae, so the black soldier fly larvae cannot survive in the oil. Survive. In addition, due to problems such as high salinity and water content of kitchen waste and unreasonable carbon-to-nitrogen ratio, it is not conducive to the feeding, movement and development of black soldier fly larvae, which affects the efficiency of kitchen waste treatment and the black so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F15/00C05F17/00A01K67/033A23K10/26A23K10/37A23K10/12A23K50/90
CPCA01K67/033C05F3/00C05F17/05C05F9/00C05F11/00C05F11/08Y02P60/87Y02W30/40
Inventor 龙云朱彦光朱德明李昌伟
Owner HUNAN CHUXIAN ENVIRONMENT PROTECTION TECH CO LTD
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