Biogas production process for environment-friendly biogas power generation

Abstract

The invention provides a biogas production process for environment-friendly biogas power generation and relates to the technical field of biogases. The biogas production efficiency is improved, the biogas production time of an anaerobic tank is prolonged, and stopping of biogas production caused by too low temperature is avoided. The biogas production process for environment-friendly biogas powergeneration comprises the steps of 1, crushing, namely selecting straws and biomass with proper dryness, carrying out preliminary crushing of fiber, further improving the external surface area of the straws and the biomass and improving the microbial decomposition efficiency, so as to improve the biogas production efficiency; 2, mixing and stirring, namely carrying out full stirring and mixing on the crushed straws and biomass to ensure full contact of the straws and the biomass, and carrying out mixing according to a specified ratio; and 3, fiber hydrolysis, namely carrying out full stirring and mixing on a fiber hydrolysis solution and the mixed straws and biomass. Through the fiber hydrolysis, fast decomposition of macromolecular fiber can be improved and fast production of a methane strain is facilitated.

Description

technical field [0001] The invention relates to the field of biogas technology, in particular to an environment-friendly biogas power generation biogas production process. Background technique [0002] Biogas, the chemical name; methane, as the name implies, is the gas in the swamp. People often see that there are bubbles coming out of the swamp, sewage ditch or cesspool. If we strike a match, it can be ignited. This is the nature Naturally occurring biogas, biogas, is a kind of combustible gas produced by the fermentation of microorganisms in the isolation of air (reducing conditions) and at a suitable temperature and pH value. Biogas is a secondary energy source. And it's renewable energy. [0003] Most of the currently used biogas power generation is to mix and feed straw, biomass fertilizer, and livestock excrement. The raw materials for this kind of production contain a large amount of fiber and semi-fiber, and only rely on the decomposing bacteria in the raw material....

AI Technical Summary

Problems solved by technology

[0003] Most of the currently used biogas power generation is to mix and feed straw, biomass fertilizer, and livestock excrement. The raw materials for this kind of production contain a large amount of fiber and semi-fiber, and only rely on the decomposing bacteria in the raw material. Fibers and semi-fibers cannot be quickly decomposed into small molecular substances, which further reduces the efficiency of methane production by methane bacteria. After feeding for a period of time, the methane content of biogas can reach the concentration of power generation. Secondly, in winter, methane bacteria Very easily affected by temperature, when the temperature is low, the methanogens will almost stop producing methane, causing the anaerobic tank to stop supplying, resulting in a problem of poor practicability