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A compound microbial agent for efficient degradation of food waste and its preparation method and application

A technology for compounding microbial inoculants and kitchen waste is applied in recycling technology, solid waste removal, furniture waste recycling and other directions, which can solve the problems of secondary pollution of life, hazards, and inability to meet the calorific value requirements of waste incineration power generation, etc. To achieve the effect of fast degradation and remarkable effect

Inactive Publication Date: 2018-12-07
瑞昊(北京)环境工程集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the characteristics of kitchen organic waste determine that it is not appropriate to treat it according to landfill and incineration.
If the kitchen waste is incinerated, because its moisture content is often as high as 80% to 90%, the calorific value is 2100 to 3100kJ / kg, which not only cannot meet the calorific value requirements of waste incineration power generation (that is, more than 5000kJ / kg), but also It will cause the incinerator to burn insufficiently and produce harmful gases; if the organic kitchen waste is landfilled, the corrupted organic matter will not only pollute the environment on a large scale, but also pollute the groundwater, which is not advisable
At the same time, incineration and landfilling have resulted in a large amount of waste of organic matter. Traditional waste disposal methods cannot achieve the reduction, harmlessness, and recycling of kitchen waste, causing secondary pollution and causing great harm to people's lives. the harm of

Method used

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  • A compound microbial agent for efficient degradation of food waste and its preparation method and application
  • A compound microbial agent for efficient degradation of food waste and its preparation method and application
  • A compound microbial agent for efficient degradation of food waste and its preparation method and application

Examples

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Effect test

Embodiment 1

[0023] A preparation method for efficiently degrading a composite microbial bacterial agent from food waste, comprising the following steps:

[0024] (1) Cultivate bacterial strains and prepare composite bacterial cells.

[0025] ① Firstly, add the lyophilized powder of Issaccharomyces orientalis to 5ml of activated medium for shaking-table culture, and gradually enlarge it to 100L fermenter functional medium for cultivation. Cultivate in a fermenter at 32-34°C for 12-24 hours, then collect the bacteria by centrifugation, and freeze-dry to prepare dormant microorganism dry powder. The composition of the activation medium and the fermentation medium are: glucose 50-150g, yeast powder 3g, beef extract 6g, urea 0.3g, dipotassium hydrogen phosphate 0.1g, distilled water to 1L, pH value 5.5, extinguish at 115°C bacteria for 15 minutes.

[0026] ② First, add the freeze-dried powder of Bacillus subtilis to 5ml of activated medium for shaking-table culture, and gradually enlarge it ...

Embodiment 2

[0042] A preparation method for efficiently degrading a composite microbial bacterial agent from food waste, comprising the following steps:

[0043] (1) Cultivate bacterial strain, prepare composite thalline, this step is identical with embodiment 1;

[0044] (2) mixing the Issaccharomyces orientalis, Bacillus subtilis, Saccharomyces aberrantensis, Trichoderma niger and actinomycetes obtained by centrifugation according to the ratio of 10:18:8:15:18 to obtain a composite thalline;

[0045] (3) mixing soybean meal, bran, rice husk powder and shavings in a weight ratio of 2:4:6:8 to make a carrier;

[0046] (4) Mix the composite bacterium obtained in step (2) with the carrier obtained in step (3) to prepare a composite microbial inoculum, and the composite microbial inoculum accounts for 9% by mass of the composite microbial inoculum.

[0047]The degradation rate test of a kind of food waste efficient degradation composite microbial bacterial agent in the embodiment 2 of the p...

Embodiment 3

[0056] A preparation method for efficiently degrading a composite microbial bacterial agent from food waste, comprising the following steps:

[0057] (1) Cultivate bacterial strain, prepare composite thalline, this step is identical with embodiment 1;

[0058] (2) mixing the Issaccharomyces orientalis, Bacillus subtilis, Saccharomyces anomaly, Trichoderma niger and actinomycetes obtained by centrifugation according to the ratio of 15:25:10:20:20 to obtain a composite thalline;

[0059] (3) mixing soybean meal, bran, rice husk powder and shavings in a weight ratio of 3:6:7:9 to make a carrier;

[0060] (4) Mix the composite thallus obtained in step (2) with the carrier obtained in step (3) to prepare a composite microbial inoculum, and the composite microbial inoculum accounts for 12% by mass of the composite microbial inoculum.

[0061] The degradation rate test of a kind of food waste efficient degradation composite microbial bacterial agent in the embodiment of the present ...

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Abstract

The invention relates to a compound microbial agent for efficiently decomposing kitchen waste. The compound microbial agent is composed of a compound bacterium body and a carrier. The compound bacterium body is formed by mixing east issa yeast, bacillus subtilis, wickerhamomyces anomalus yeast, black trichoderma and actinomycetes. The carrier is composed of defatted soy flour, bran, rice hull powder and wood shavings. The compound bacterium body accounts for 6-12% of the compound microbial agent by weight percentage. The compound microbial agent for efficiently decomposing the kitchen waste has the beneficial effects that the compound microbial agent and the kitchen organic waste are fully mixed in fermentation equipment, different kinds of bacteria act synergistically under the normal-temperature and aerobiotic conditions, the decomposing rate of the kitchen organic waste is improved, the fermentation time is shortened, and meanwhile the deodorization effect is obvious. The kitchen waste fermented through the compound microbial agent can serve as organic fertilizer. Due to the use of the compound microbial agent for decomposing the kitchen waste at normal temperature, the problems of land occupation and pollution caused by landfill or pollution to the atmosphere environment caused by incineration are effectively relieved.

Description

technical field [0001] The invention relates to the technical field of bioengineering microbial fermentation, in particular to a compound microbial agent for efficiently degrading food waste and its preparation method and application. Background technique [0002] Kitchen waste is the domestic waste formed by residents in the process of living consumption. The main components include organic matter such as starchy food, plant fiber, animal protein and fat. It has high moisture content, high oil and salt content, and is perishable and smelly. , spread bacteria and viruses, and is not conducive to the transportation of ordinary garbage trucks. Food waste mainly comes from food processing waste (kitchen waste) and food residues (swill) produced in the catering service industry, households, canteens of enterprises and institutions, etc. [0003] At present, the treatment methods of urban kitchen organic waste are mainly sanitary landfill and incineration. However, the characte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00
CPCY02W30/78
Inventor 张波慕姝高世宝
Owner 瑞昊(北京)环境工程集团有限公司
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