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Microbial agent for degrading organic wastes and preparation method thereof

A technology for microbial inoculum and organic waste, applied in the field of microbial inoculum and its preparation, can solve the problems of high operational safety requirements, insufficient decomposing degree, long composting cycle, etc., and achieve high-efficiency decomposition effect, low temperature, and decomposition time. short effect

Pending Publication Date: 2020-08-18
惠州市通用机电设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Biological treatment technologies are mainly divided into aerobic composting and anaerobic digestion. Among them, the aerobic composting method is simple to operate and has low operating costs. The disadvantage is that it needs pre-screening of organic matter, an aerobic environment and oil removal, and the process will produce foul odor. Odor, and the composting cycle is long; anaerobic digestion has the advantages of cleanness and high efficiency, and can realize the recyclable utilization of biomass energy, but the investment cost of biogas projects is high, the operation safety requirements are high, and the processing cycle is long
[0007] Most of the relatively mature and common microbial degradation technologies for rapid treatment of food waste use high-temperature bacteria, that is, microorganisms process food waste at a high temperature of 70-80°C, and quickly become fertilizer after 24-36 hours. The so-called organic fertilizer produced by this technical method cannot be directly used for green planting due to insufficient maturity, and it needs to undergo secondary composting and fermentation for at least 2-3 weeks

Method used

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  • Microbial agent for degrading organic wastes and preparation method thereof
  • Microbial agent for degrading organic wastes and preparation method thereof
  • Microbial agent for degrading organic wastes and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The strains screened out are obtained in the following parts by weight:

[0045]

[0046] Mix in proportion, inoculate in liquid culture medium, vibrate at 120-180 rpm at 30-40°C for 16h-18h, and expand the culture.

[0047] Using sawdust as a carrier, the bacteria are immobilized and made into a solid treatment bacteria agent for use.

[0048] Mix the bacteria agent and kitchen waste according to the weight ratio of 1:9, 1:5, and 1:0.5 respectively, put them into the integrated kitchen waste treatment equipment, set the fixed parameters, as shown in the table below, start the equipment, and test for 24 hours waste reduction rate.

[0049]

[0050] Wherein the degradation rate of kitchen waste=(weight of input kitchen waste+weight of input microbial agent-weight after treatment) / weight of input kitchen waste×100%.

[0051] Numbering Bacteria / garbage (w / w) Reduction rate (%) 1 1：9 90％ 2 1：5 90％ 3 1：0.5 95％

Embodiment 2

[0053] The strains screened out are obtained in the following parts by weight:

[0054]

[0055]

[0056] Mix in proportion, inoculate in liquid culture medium, vibrate at 120-180rpm at 30-40°C for 16h-18h, and expand the culture.

[0057] Using sawdust as a carrier, the bacteria are immobilized and made into a solid treatment bacteria agent for use.

[0058] Mix the bacteria agent with different types of kitchen waste at a weight ratio of 1:5, put them into the kitchen waste integrated treatment equipment, set fixed parameters, such as temperature, stirring speed, stirring cycle, ventilation, etc., and start the equipment , test the waste weight reduction rate after 24h of treatment, and the equipment parameters are the same as in Example 1.

[0059] Wherein the degradation rate of kitchen waste=(weight of kitchen waste input+weight of microbial agent input-weight after treatment) / weight of kitchen waste input×100%.

[0060] Numbering Garbage type Reduct...

Embodiment 3

[0062] The food waste solid residue after bacterial agent treatment can be directly used in bio-organic fertilizer for green planting, and it is brown powder when observed with the naked eye. The solid residue obtained in Example 1 is detected with reference to the standard NY 525-2012 organic fertilizer. The test results are shown in the table below, which meet the organic fertilizer standards.

[0063]

[0064]

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Abstract

The invention discloses a microbial agent for degrading organic wastes and a preparation method of the microbial agent, and the method mainly comprises the following steps: degrading kitchen wastes, enriching dominant bacteria, separating and comparing the strains, selecting safe dominant strains, and combining and compounding to prepare the microbial agent for efficiently degrading the organic wastes. After the screened strain is prepared into a microbial inoculum, the microbial inoculum has an efficient decomposition effect on kitchen waste treatment, the required temperature is low, the decomposition time is short, an organic fertilizer can be obtained after decomposition, and the microbial inoculum has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of organic waste recovery and treatment, in particular to a microbial agent for degrading organic waste and a preparation method thereof. Background technique [0002] Kitchen waste, commonly known as swill, swill, also called swill, also known as rancid water, is a general term for food waste and kitchen waste, and is a part of urban domestic waste. Its composition is complex, mainly a mixture of oil, water, fruit peels, vegetables, rice noodles, fish, meat, bones, waste tableware, plastics, paper towels and other substances. It is characterized by being extremely perishable and deteriorating, giving off a foul smell, and spreading bacteria and viruses. The amount of food waste in my country is very large, and it is showing a rapid upward trend. [0003] Food waste can cause a variety of hazards, such as polluting the environment, affecting city appearance, endangering human health, and causing secondary ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20C12N1/02B09B3/00C12R1/125C12R1/07C12R1/085
CPCC12N1/20C12N1/02B09B3/00Y02W30/78
Inventor 吴金川李清心张丽
Owner 惠州市通用机电设备有限公司
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