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Method for preparing bio-organic fertilizer from kitchen garbage

A bio-organic fertilizer and kitchen waste technology is applied in the preparation of organic fertilizers, the treatment of bio-organic parts, and organic fertilizers. Social effects, improved crop growth, high production efficiency

Inactive Publication Date: 2021-06-11
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used amino acid material is rapeseed meal, but because of its high cost and wide application, it is not a waste in the pure sense. In a large number of studies, the amount of rapeseed meal added has reached 50%. Although the fertilizer effect is very good, but Due to the high cost of rapeseed meal, although this type of bio-organic fertilizer has excellent effects, its large-scale promotion is limited

Method used

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  • Method for preparing bio-organic fertilizer from kitchen garbage
  • Method for preparing bio-organic fertilizer from kitchen garbage
  • Method for preparing bio-organic fertilizer from kitchen garbage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The method of the bio-organic fertilizer of the present embodiment may further comprise the steps:

[0038] (1) Collect the kitchen waste after garbage sorting, its moisture content is 80%, and use it after being crushed to 12-60mm;

[0039] (2) With straw as the substrate, the particle size after crushing is 0.5cm;

[0040] (3) Primary fermentation: Mix kitchen waste and straw at a mass ratio of 2:1, then add a total mass of 1‰ decomposed bacteria (Baiyibao EM bacteria), adjust the moisture content to 60%, and start fermentation for 7 days , turn the pile once a day, and keep the temperature above 50°C;

[0041] (4) Secondary fermentation: add duck feathers with a total mass of 10% to the fermented product after the first fermentation, and then add a total mass of 0.1% feather-degrading bacteria agent, and ferment again for 7 days to finally obtain bioorganic Fat.

Embodiment 2

[0043] The method of the bio-organic fertilizer of the present embodiment may further comprise the steps:

[0044] (1) Collect the kitchen waste after garbage sorting, its moisture content is 70%, and use it after crushing to 12-60mm;

[0045] (2) With straw as the substrate, the particle size after crushing is 1cm;

[0046] (3) Primary fermentation: Mix kitchen waste and straw at a mass ratio of 3:1, then add a decomposing bacterial agent with a total mass of 2‰, adjust the moisture content to 50%, start fermentation for 7 days, turn the pile once a day, and keep the temperature Above 50°C;

[0047] (4) Secondary fermentation: add chicken feathers with a total mass of 15% to the fermented product after the first fermentation, and then add a total mass of 0.5% feather-degrading bacteria agent, and ferment again for 10 days to finally obtain bio-organic fertilizer .

Embodiment 3

[0049] The method of the bio-organic fertilizer of the present embodiment may further comprise the steps:

[0050](1) Collect the kitchen waste after garbage sorting, its moisture content is 80%, and use it after being crushed to 12-60mm;

[0051] (2) With straw as the substrate, the particle size after crushing is 1cm;

[0052] (3) Primary fermentation: Mix kitchen waste and straw at a mass ratio of 5:1, then add a total mass of 2‰ of decomposing bacteria, adjust the moisture content to 40%, start fermentation for 9 days, turn the pile once a day, and keep the temperature Above 50°C;

[0053] (4) Secondary fermentation: Add chicken feathers with a total mass of 20% to the fermented product after the first fermentation, and then add a total mass of 1% feather-degrading bacteria agent, and ferment again for 7 days to finally obtain bio-organic fertilizer .

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Abstract

The invention discloses a method for preparing a bio-organic fertilizer from kitchen garbage. The method comprises the following steps: adding feathers into kitchen garbage, degrading the feathers into amino acids by using a bacterial agent prepared from a feather degrading bacterium, namely Chryseobacterium sp., and supplementing nutrients in the composting process of the kitchen garbage by using the amino acids, so that the activity of microorganisms is improved and humification degree of the kitchen garbage is accelerated. Besides, keratin waste and kitchen garbage waste are organically combined, a large amount of amino acids in feather is obtained through efficient feather degrading bacteria, the effect of replacing rapeseed meal compost in the prior art can be achieved, the cost is greatly reduced, and the final bio-organic fertilizer is high in activity, can effectively improve crop growth, and especially has a salt stress relieving effect on salinized soil in facility agriculture.

Description

technical field [0001] The invention belongs to the field of microbial fermentation, and in particular relates to a method for preparing bio-organic fertilizer from kitchen waste. Background technique [0002] Food waste refers to food residues, liquid residues and waste oils and other wastes produced by hotels, restaurants, restaurants and government agencies, troops, colleges, enterprises and institutions in the process of food processing, catering services, unit meals and other activities. Kitchen waste generally refers to raw materials and finished products or residues needed in family life and diet. From 2009 to 2013, the average annual growth rate of municipal solid waste in my country was 2.4%. In 2014, the volume of garbage removal reached 179 million tons, and the total amount of garbage was still accumulatively increasing at an annual growth rate of 8-10%. Surplus garbage is an important part of domestic garbage, accounting for 49.4-64.5% of domestic garbage. It is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/80C05F17/50C05F17/20C05F17/10
CPCC05F1/005C05F17/10C05F17/20C05F17/50C05G3/80C05F9/00C05F11/00C05F11/08Y02W30/40
Inventor 谢婧婧宋天顺
Owner NANJING UNIV OF TECH
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