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Method for producing microbial fertilizer by utilizing kitchen waste

A microbial fertilizer and kitchen waste technology, applied in the biological field, can solve the problems of long time, incomplete utilization, secondary pollution of sewage and waste gas, etc., and achieve the effects of efficient utilization, increased production, and reduced environmental pollution

Pending Publication Date: 2020-01-31
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the aerobic composting or anaerobic fermentation used in the past biodegradation methods take a long time and cannot be fully utilized, and the generated sewage and waste gas are likely to cause secondary pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for producing microbial fertilizer from food waste includes the following steps:

[0019] 1) Use manual or automatic methods to remove metal, glass, ceramics, plastics and other debris that cannot be quickly utilized by microorganisms;

[0020] 2) Add water to the food waste until the food waste is no longer there. Heat the food waste to 45°C and maintain for 30 minutes. During this time, stir appropriately, and let it stand for 5 minutes to separate the oil phase and the water phase, and remove the upper layer of grease for use Preparation of industrial grease;

[0021] 3) Crush the lower-level kitchen waste, control the particle diameter to less than 1.5mm, adjust the solid content to 10% by adding water, add 0.05% cellulase, pectinase, amylase and protease, and enzymatically hydrolyze at 37°C for 2 hours to obtain The food waste after enzymolysis is reserved;

[0022] 4) Bacillus amyloliquefaciens, Bacillus licheniformis, Bacillus jelly-like, Bacillus megaterium, B...

Embodiment 2

[0029] 1) Use manual or automatic methods to remove metal, glass, ceramics, plastics and other debris that cannot be quickly utilized by microorganisms;

[0030] 2) The water content in the food waste is relatively high, and the solids have been submerged without adding water. The food waste is directly heated to 55°C and maintained for 10 minutes. During this time, appropriate stirring is carried out, and the oil phase and the water phase are separated by standing for 60 minutes, and the upper layer is removed. Grease is used to prepare industrial grease;

[0031] 3) Crush the lower-level kitchen waste, control the particle diameter to less than 1.5mm, adjust the solid content to 50%, add 0.1% cellulase, and enzymatically hydrolyze at 30°C for 5 hours to obtain enzymatically hydrolyzed kitchen waste for later use;

[0032] 4) Bacillus amyloliquefaciens, Bacillus licheniformis, Bacillus jelly-like, Bacillus megaterium, Brevibacterium lateralis, Bacillus thuringiensis, Bacillus subtil...

Embodiment 3

[0038] 1) Use automatic methods to remove metal, glass, ceramics, plastics and other debris that cannot be quickly utilized by microorganisms;

[0039] 2) Add water to the food waste until it has no food waste, heat the food waste to 80°C, maintain it for 10 minutes, stir appropriately during this period, let it stand for 20 minutes to separate the oil phase and the water phase, and remove the upper layer of grease for use Preparation of industrial grease;

[0040] 3) Crush the lower level of kitchen waste, control the particle diameter to less than 1.0mm, add water to adjust the solid content to 20%, add 0.05% cellulase, pectinase, and amylase, and enzymatically hydrolyze at 37°C for 5 hours to obtain enzymatic hydrolysis The rest of the food waste is reserved;

[0041] 4) Bacillus amyloliquefaciens, Bacillus licheniformis, Bacillus jelly-like, Bacillus megaterium, Brevibacterium lateralis, Bacillus thuringiensis, Bacillus subtilis, and Streptomyces vulgaris dry concentrate prepara...

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Abstract

The invention provides a method for producing a microbial fertilizer by using kitchen waste. The microbial fertilizer contains one selected from the group consisting of Bacillus amyloliquefaciens, Bacillus licheniformis, Bacillus mucilaginosus, Bacillus megatherium, Brevibacillus laterosporus, Bacillus thuringiensis, Bacillus subtilis and Streptomyces microflavus or mixed bacteria of two or more selected from the group. The method for producing the microbial fertilizer comprises the following steps: removing foreign matters in the kitchen waste, heating the kitchen waste, taking out grease, crushing the rest kitchen waste, adding enzyme for enzymolysis, putting the kitchen waste having undergone enzymolysis into a fermentation tank, performing sterilizing, inoculating one or more culturedstrains, performing fermenting with a pure bacterium or mixed bacteria to obtain a single-bacterium liquid microbial fertilizer or a composite-bacteria liquid microbial fertilizer, and adsorbing the liquid bacterial fertilizer with a carrier to obtain the solid microbial fertilizer. The microbial fertilizer is produced by utilizing the kitchen waste, so production cost is remarkably reduced, and the pollution of the kitchen waste to the environment can be effectively reduced.

Description

Technical field [0001] The invention belongs to the field of biological technology, and relates to a method for producing microbial fertilizer by using kitchen waste. Background technique [0002] Due to the improvement of water activity, people pay more and more attention to green food. Microbial fertilizer has the functions of improving soil fertility, improving soil structure, stimulating crop growth, and enhancing crop resistance. It is a very promising green fertilizer. One of the main reasons currently restricting the widespread use of microbial fertilizers is the high production cost, which is more expensive than general telephone charges or farmyard manure. Since the production of microbial fertilizers basically uses industrial products such as glucose, sucrose, peptone, and yeast extract as the main medium raw materials, the production cost is high and the price is difficult to reduce. How to effectively replace the existing raw materials for microbial fertilizer produ...

Claims

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Application Information

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IPC IPC(8): C05G1/00C12N1/20C12R1/07C12R1/10C12R1/11C12R1/125C12R1/465
CPCC05C3/00C12N1/20Y02P20/129
Inventor 谭之磊魏希庆李小娜贾士儒乔长晟
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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