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Method for producing organic fertilizer from kitchen waste

A technology of food waste and organic fertilizer, applied in the direction of organic fertilizer, climate change adaptation, etc., to achieve the effect of simple operation, reduced transportation and treatment costs, and thorough treatment

Inactive Publication Date: 2015-02-11
TIANJIN ECOLOGY CITY ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the differences in the eating habits of various countries, there are also differences in the composition of food waste in various countries. Therefore, foreign bacterial agents are not necessarily suitable for treating food waste in my country to a certain extent. Waste biological treatment technology is particularly important

Method used

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  • Method for producing organic fertilizer from kitchen waste
  • Method for producing organic fertilizer from kitchen waste
  • Method for producing organic fertilizer from kitchen waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 500g of kitchen waste is packed into a porcelain plate, wherein about 10% of bran is added to adjust the water content of the material to 55%. Bacillus amyloliquefaciens, Bacillus cereus, Candida lipolytica and Candida tropicalis were selected as fermentation strains. Utilize beef extract 2g, peptone 5g, NaCl 3g, agar 2g, water 500mL, prepare Bacillus amyloliquefaciens and Bacillus cereus slant medium; Utilize yeast powder 3g, peptone 8g, glucose 15g, agar 2g, water 500mL, prepare solution Candida liposum and Candida tropicalis slants. Take fresh slant culture medium, transfer Bacillus amyloliquefaciens, Bacillus cereus, Candida lipolytica and Candida tropicalis into fresh slant medium respectively, put Bacillus amyloliquefaciens and Bacillus cereus at 35°C After culturing for 22 hours, Candida lipolytica and Candida tropicalis were cultured at 30° C. for 22 hours to obtain four activated strains. Then the activated strains were respectively transferred to the seed cu...

Embodiment 2

[0037]500g of kitchen waste is packed into a porcelain plate, wherein about 10% of bran is added to adjust the water content of the material to 57%. Bacillus amyloliquefaciens, Bacillus cereus, Candida lipolytica and Candida tropicalis were selected as fermentation strains. Utilize beef extract 3g, peptone 10g, NaCl 5g, agar 2.5g, water 1000mL, prepare Bacillus amyloliquefaciens and Bacillus cereus slant culture medium; Utilize yeast powder 5g, peptone 10g, glucose 20g, agar 2.5g, water 1000mL, Prepare Candida lipolytica and Candida tropicalis slants. Take fresh slant culture medium, transfer Bacillus amyloliquefaciens, Bacillus cereus, Candida lipolytica and Candida tropicalis into fresh slant medium respectively, put Bacillus amyloliquefaciens and Bacillus cereus at 37°C Cultivate Candida lipolytica and Candida tropicalis at 32° C. for 24 hours to obtain four activated strains. Then the activated strains were transferred into the seed medium respectively, and Bacillus amyl...

Embodiment 3

[0053] 500g of kitchen waste is packed into a porcelain plate, wherein about 10% of bran is added to adjust the water content of the material to 60%. Bacillus amyloliquefaciens, Bacillus cereus, Candida lipolytica and Candida tropicalis were selected as fermentation strains. Utilize beef extract 5g, peptone 15g, NaCl 8g, agar 3g, water 1500mL, prepare Bacillus amyloliquefaciens and Bacillus cereus slant medium; Utilize yeast powder 7g, peptone 12g, glucose 25g, agar 3g, water 1500mL, prepare solution Candida liposum and Candida tropicalis slants. Take fresh slant culture medium, transfer Bacillus amyloliquefaciens, Bacillus cereus, Candida lipolytica and Candida tropicalis into fresh slant medium respectively, put Bacillus amyloliquefaciens and Bacillus cereus at 39°C Cultivate Candida lipolytica and Candida tropicalis at 34° C. for 26 hours to obtain four activated strains. Then the activated strains were transferred into the seed medium respectively, and Bacillus amyloliqu...

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Abstract

The invention provides a method for producing organic fertilizer from kitchen waste. The method comprises the steps: selecting two kinds of bacteria and two kinds of saccharomycetes, respectively preparing culture media and seed solutions, and transferring the bacteria and the saccharomycetes into fresh slant culture mediums respectively, so as to carry out activation respectively; respectively putting the activated strains into agar-removed culture mediums, culturing the bacteria for 8-12 hours at the temperature of 35-39 DEG C, and culturing the saccharomycetes for 15-19 hours at the temperature of 30-34 DEG C, so as to obtain seed solutions, wherein the revolving speed of each shaking table is 150-250r / min; inoculating a bacillus amyloliquefaciens seed solution, a bacillus cereus seed solution, a candida lipolytica seed solution and a candida tropicalis seed solution, which are in the ratio of (2-3) to (2-3) to (1-2) to (1-2), to the kitchen waste according to the mass ratio of 8-12%, and fermenting, thereby obtaining the organic fertilizer. According to the method, a biodegradation technology is utilized, the operation is simple and convenient, the energy consumption is low, the safety is good, no off flavors or peculiar smells exist, and no secondary pollution is caused.

Description

technical field [0001] The invention relates to a method for producing organic fertilizer by utilizing kitchen waste, and belongs to the technical field of harmless, resourceful and reduction of solid waste. Background technique [0002] Food waste generally refers to food residues generated during food processing and food residues after eating and drinking. With the rapid development of the catering industry, the output of kitchen waste is increasing day by day. General large cities produce more than 3,000 tons of domestic waste every day, of which kitchen waste accounts for about 50%. The pollution caused by kitchen waste has become the main problem of urban environmental pollution, seriously threatening people's normal life and health. [0003] However, from the perspective of chemical composition, food waste is mainly composed of starch, cellulose, protein, and lipid. From the perspective of resource utilization, it can be made into a good fertilizer. How to deal with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F9/04
CPCC05F9/04Y02A40/20
Inventor 张景辉杨伟梁静波
Owner TIANJIN ECOLOGY CITY ENVIRONMENTAL PROTECTION
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