Method for improving gas production rate of marsh gas fermentation raw material

Abstract

The invention belongs to the technical fields of new agriculture energy sources and environment protection, in particular to a method for using a plant source inoculum to improve the gas yield rate of a marsh gas fermenting material. The method includes preparing the plant source inoculum; the materials of the plant source inoculum include the dry basis of a water hyacinth, EM bacteria and a biogas liquid; wherein, the dry basis of the water hyacinth is obtained from cutting and drying the water hyacinth salvaged from rivers; the biogas liquid in a fermentation vat is taken and then the temperature is heated to be between 23 DEG C and 25 DEG C; then the biogas liquid is poured and stirred uniformly and the dry basis of the water hyacinth is putted in; then the mixture is dipped for 24 hours under the environment of the temperature of between 23 DEG C and 25 DEG C for obtaining the plant source inoculum; then the plant source inoculum and the fermenting material are added into the fermentation vat together; and the temperature of the marsh gas fermentation vat is larger than or equal to 23 DEG C. The method can lead the unit gas yield rate of the marsh gas fermenting material to beimproved by 3 to 5 times, not only improves the utilization rates of the marsh gas and a marsh gas vat, but also improves the economic benefit of the marsh gas engineering and is beneficial to the development of the marsh gas engineering construction.

Description

Technical field: [0001] The invention belongs to the technical fields of new agricultural energy and environmental protection, in particular to a method for increasing the gas production rate of biogas fermentation raw materials by using plant source inoculum. Background technique: [0002] Rural biogas construction is an important part of the national energy development strategy, and biogas is one of the four major renewable energy sources that my country is currently vigorously developing. Accelerate the development of clean energy in rural areas, continue to increase investment in rural biogas construction, and support the construction of large and medium-sized biogas farms in places where conditions permit. Accelerate the implementation of rural cleaning projects, and promote the comprehensive treatment, conversion and utilization of human and animal manure, crop straw, domestic garbage and sewage. [0003] Due to the intensification of river pollution in recent years, ...

AI Technical Summary

Problems solved by technology

[0005] Since the existing biogas fermentation tanks are usually built on the ground, the rate of fermentation gas production is affected by changes in temperature. In short, in summer, biogas tanks can basically ferment and produce gas, while in winter, northern biogas tanks cannot ferment and produce gas at all, or even biogas Some of the ponds were cracked by freezing, although in summer, because the existing biogas fermentation ponds rely on human and livestock manure for fermentation, the fermentation gas production rate and gas production rate are low, which seriously affects the economic benefits of biogas projects

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