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Solid composite microbial inoculant for promoting aerobic composting of kitchen waste as well as preparation and application of solid composite microbial inoculant

A technology of microbial bacterial agent and composite bacterial agent, which is applied in the field of solid waste recycling, can solve the problems of long cycle, low degree of humification, and insufficient decomposition of cellulose substances, etc., and achieves a high degree of harmlessness, Effects of shortened heating time, humus aromatization and high degree of condensation

Inactive Publication Date: 2021-09-28
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional aerobic composting cycle is long, the decomposition of food waste with high organic matter content, especially cellulose, is not thorough enough, and the degree of humification is not high, which restricts its development.

Method used

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  • Solid composite microbial inoculant for promoting aerobic composting of kitchen waste as well as preparation and application of solid composite microbial inoculant
  • Solid composite microbial inoculant for promoting aerobic composting of kitchen waste as well as preparation and application of solid composite microbial inoculant
  • Solid composite microbial inoculant for promoting aerobic composting of kitchen waste as well as preparation and application of solid composite microbial inoculant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 prepares solid-state microbial composite bacterial agent

[0030] Bacillus altitudinis, Alcaligenes faecalis, Lysinibacillus capsici, Bacillus velezensis, Alcaligenes aquatilis, Providencia (Providenciavermicola), Bacillus paramycoides, Bacillus licheniformis and Bacillus thuringiensis were respectively inoculated in Luria-Bertani liquid medium at 37°C for about 24 hours after shaking and fermenting, the liquid The composite bacterial agent and bran were evenly mixed according to the mass ratio of 1:1, and then cultured in a 37°C incubator for 24 hours to obtain a solid microbial composite bacterial agent that promotes aerobic composting of kitchen waste.

Embodiment 2

[0031] Example 2 Using solid-state microbial composite bacteria agent to carry out food waste composting effect experiment

[0032] Inoculate the solid-state microbial composite bacterial agent prepared in Example 1 of the present invention into the compost uniformly mixed with kitchen waste and straw, and set up a control without adding the bacterial agent and a control with only the carrier bran, a total of three treatments, respectively recorded They are: TB (microbial compound bacterial agent added group), CK (no bacterial agent added control group) and TW (carrier bran added control group). The water content of food waste is about 80%, and the water content of straw is about 2%; the wet weight ratio of food waste and straw is mixed at 10:1; It is times / 5d, ​​and the frequency in the next three weeks is times / 3d. Monitor changes in physical and chemical indicators and microbial indicators during the composting process. In addition, the influence of solid microbial agents...

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Abstract

The invention discloses a solid composite microbial inoculant for promoting aerobic composting of kitchen waste as well as preparation and application of solid composite microbial inoculant. The solid composite microbial inoculant is prepared from bacillus altitudinis, alcaligenes faecalis, lysinibacillus capsici, Bacillus velezensis, alcaligenes aquae, providencia, Bacillus paramycoides, bacillus licheniformis, bacillus thuringiensis, liquid culture media and bran. The solid-state microbial compound inoculant can shorten the temperature rise time of kitchen waste compost and prolong the high-temperature period time, so that the compost can quickly reach the thoroughly decomposed and harmless standards, and the condensation and aromatization of humus are promoted. In addition, the abundance of beneficial bacterium bacillus in the composting process of the kitchen waste is also remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of solid waste recycling, and relates to a solid microbial composite bacterial agent for promoting aerobic composting of kitchen waste and its preparation and application. Background technique [0002] The amount of food waste generated in my country can reach 300,000 tons every day. With the further implementation of the garbage classification policy, the centralized collection and transportation of food waste urgently needs appropriate technical means for disposal. In addition, food waste has the characteristics of high moisture content and high organic matter, and it is easy to decay and breed pathogenic microorganisms. Aerobic biological fermentation can effectively promote the degradation of macromolecular organic substances and the formation of humus substances, and is an effective way to realize the efficient resource utilization of food waste. [0003] The traditional aerobic composting cycle is lon...

Claims

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Application Information

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IPC IPC(8): C12N1/20C05F17/20C05F9/04C12R1/07C12R1/05C12R1/10C12R1/01
CPCC12N1/20C05F17/20C05F9/04Y02W30/40Y02A40/20
Inventor 谢冰李许南崔玉雪
Owner EAST CHINA NORMAL UNIV
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