Preparation and application method of special microorganism composite bacterial agent for directly decomposing and fermenting crop straws to generate marsh gas

Abstract

The invention discloses preparation and an application method of a special microorganism composite bacterial agent for directly decomposing and fermenting crop straws to generate marsh gas. The special microorganism composite bacterial agent is liquid or solid, and is formed by fermenting, culturing, combining and compositing of one or more of bacillus cereus, bacillus subtilis, bacillus licheniformis, bacillus megaterium, bacillus mucilaginosus, bacillus circulans, bacillus sphaericus, clostridium sporogenes, clostridium acetobutylicum, clostridium pasteurianum, clostridium beijerinckii, clostridium thermocellum, trichoderma viride, trichoderma pseudokoningii and aspergillus niger. Meanwhile, by taking the special microorganism composite bacterial agent as an inoculation bacterial agent,the invention provides the application method for decomposing the crop straws and accelerating the fermentation to generate marsh gas; the crop straws treated by the microorganism composite bacterialagent have fast fermentation speed, large marsh gas generation quantity, low treating cost and no secondary pollution, can be fermented to generate the marsh gas under the condition of no any faeces of poultry and livestock, and the application range is quite wide.

Description

technical field [0001] The invention relates to the preparation and application method of a special microbial compound bacterial agent for directly decomposing crop straws to ferment and produce biogas, especially the preparation of a microbial bacterial agent for decomposing cellulosic crop straws; and using the special compound bacterial agent as an inoculum It provides an application method for decomposing crop stalks and accelerating fermentation to produce biogas. At the same time, it can also be used for biological treatment of other organic solid wastes to produce biogas. Background technique [0002] In order to improve the rural ecological environment and improve the quality of life of farmers, the state vigorously promotes the production and utilization of clean energy-biogas. At present, my country’s rural areas mainly use livestock and poultry manure to produce biogas. According to statistics, due to the uneven number of livestock and poultry raised by each farm...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a preparation of a special microbial composite bacterial agent that directly decomposes crop stalks for fermentation to produce biogas, and simultaneously provides an application method for utilizing the microbial composite bacterial agent to decompose crop stalks for processing and fermentation to produce biogas; it effectively overcomes the In the prior art, the fermentation is not good, which affects the production and yield of biogas. The crop stalks treated with microbial agents have a fast fermentation speed and a large amount of biogas, which shortens the initial gas production time by more than 50% and increases the biogas production by 30%. It can make all corn stalks, rice straws, wheat stalks and other crop stalks used as raw materials for biogas fermentation. Compared with other existing treatment methods, the treatment cost is low, and it can be treated in farmyards, fields, and beside biogas tanks. And there is no secondary pollution; after the straw is treated, it can be fermented in a biogas digester to produce biogas, and it can also produce biogas without any poultry and livestock manure, and the scope of application is very wide