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Microbial agent for quickly degrading and reducing organic waste and application thereof

A technology of microbial agent and organic waste, which is applied to the reduction of organic waste, the screening of high-efficiency microbial agent for degrading organic waste, and the control of harmless treatment conditions. It can solve the problems of high cost and the technology has not reached the practical stage. , to achieve the effect of low unit energy consumption, small footprint and low processing cost

Active Publication Date: 2018-05-04
ENVIRONMENTAL SCI RES & DESIGN INST OF ZHEJIANG PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the pyrolysis method has broad application prospects, the cost is high and the technology has not yet reached the practical stage

Method used

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  • Microbial agent for quickly degrading and reducing organic waste and application thereof
  • Microbial agent for quickly degrading and reducing organic waste and application thereof
  • Microbial agent for quickly degrading and reducing organic waste and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A middle school canteen in Hangzhou processes about 0.5 tons of food waste per day. The treatment conditions are as follows:

[0052] The four screened bacteria were cultured separately in liquid LB medium, the culture conditions were pH 4.0, NaCl could reach 2.0%, the culture temperature was 35°C, 140 rpm, and after 3-6 days of shaker culture, the ratio of 1:1 : 1:1 volume ratio mixing.

[0053] The mixed bacterial agent is stirred with the rice bran, and it is easy to add into the reaction chamber without agglomeration. The microbial agent is added once every half month, and the amount of each addition is 0.4% (M / M) of the daily treatment amount of organic waste.

[0054] Before the addition of organic waste, large pieces of organic waste such as large bones and corn pieces need to be sorted out and crushed, and then added to the reaction chamber for degradation treatment.

[0055] Before adding organic waste, it needs to be press-filtered to control the water content...

Embodiment 2

[0062] The daily processing capacity of kitchen waste from various restaurants in a commercial complex in Hangzhou is about 0.3-0.8 tons. The biggest feature of this kitchen waste is its high oil content. According to the characteristics of this kitchen waste, the treatment conditions are as follows.

[0063] Cultivate the four screened bacteria separately in liquid LB medium, the culture conditions are pH 4.0, NaCl can reach 2.0%, culture temperature is 35°C, 140rpm, shaker culture for 3 to 6 days, degrade starch, protein The ratio of fat, cellulose is mixed according to the volume ratio of 1:1:4:1.

[0064] The mixed bacterial agent is stirred with the rice bran, and it is easy to add into the reaction chamber without agglomeration. The microbial agent is added once every half month, and the amount of each addition is 0.4% (M / M) of the daily treatment amount of organic waste.

[0065] Before the addition of organic waste, large pieces of organic waste such as large bones an...

Embodiment 3

[0073] A vegetable planting base in a certain village in Ruian, Zhejiang, has a daily processing capacity of 1-1.5 tons of discarded vegetables. The composition of discarded vegetables varies with the seasons throughout the year. In spring and summer, they are mainly common green leafy vegetables, and in autumn they contain bamboo shoots, corn stalks, etc. The processing conditions are as follows.

[0074] Cultivate the four screened bacteria separately in liquid LB medium, the culture conditions are pH 4.0, NaCl can reach 2.0%, culture temperature is 35°C, 140rpm, shaker culture for 3 to 6 days, degrade starch, protein The bacteria of fat, fat and cellulose are mixed according to the volume ratio of 1:1:1:6.

[0075] The mixed bacterial agent is stirred with the rice bran, and it is easy to add into the reaction chamber without agglomeration. The microbial agent is added once every half month, and the amount of each addition is 0.4% (M / M) of the daily treatment amount of org...

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Abstract

The invention provides a microbial agent for quickly degrading and reducing organic waste and an application thereof. The microbial agent is prepared by mixing bacillus subtilis, the preservation number of which is CGMCC No. 14052, bacillus amyloliquefaciens, the preservation number of which is CGMCC No. 14053, bacillus subtilis, the preservation number of which is CICC No. 10210 and bacillus sp,the preservation number of which is CICC No. 10829. The application comprises the following steps: mixing the microbial agent with a carrier rice bran, wherein the microbial agent is attached to the carrier rice bran; carrying out filter pressing treatment on screened organic waste; and inputting the organic waste after filter pressing treatment into a reaction cabin, inputting the carrier rice bran with the microbial agent; and intermittently stirring the mixture to react for 12-24h, wherein kitchen waste can be reduced by over 90%. The microbial agent provided by the invention treats the organic waste on the spot from source, so that the organic waste treatment pressure can be alleviated greatly.

Description

technical field [0001] The invention relates to the technical field of rapid microbial degradation, reduction, and harmless treatment of organic waste, and in particular relates to the screening of high-efficiency microbial agents for degrading organic waste, and the control of organic waste reduction and harmless treatment conditions. Background technique [0002] Organic waste is "wet waste". With the rapid development of the economy and the acceleration of urbanization and the improvement of people's living standards, the output of organic waste is increasing. Kitchen waste accounts for about 50-70% of organic waste. The amount of kitchen waste generated is increasing and becoming more and more complex. Statistics show that Chinese cities generate more than 60 million tons of kitchen waste every year, exceeding 160,000 tons per day. However, judging from the current first five batches of 100 pilot cities, most of the projects are still in the construction and preparatory...

Claims

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Application Information

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IPC IPC(8): C12N1/20B09B3/00C05F9/04C05F17/00C12R1/125C12R1/07
CPCB09B3/00C05F9/04C05F17/20C12N1/20Y02A40/20Y02W30/40
Inventor 王慧荣梅荣武李明智许青兰任旭峰
Owner ENVIRONMENTAL SCI RES & DESIGN INST OF ZHEJIANG PROVINCE
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