Small-scale non-mixed inoculation continuous solid anaerobic fermentation device and fermentation method

Abstract

The invention relates to a small-scale non-mixed inoculation continuous solid anaerobic fermentation device and a fermentation method. The small-scale non-mixed inoculation continuous solid anaerobicfermentation device is characterized in that a pair of hinged supports are symmetrically mounted on the side wall of a sleeve in the radial direction, hinged handles are coaxially hinged in the hingedsupports in a sealed manner, one end of each hinged handle extends into the sleeve, zymophyte cake trays are horizontally mounted in the middle of the interior of the sleeve at intervals, and rotating handles are horizontally hinged to the two sides of each zymophyte cake tray; the rotating handle and the rotating handle extending to the sleeve are coaxially fixedly arranged, when the hinge handles are rotated, the rotating handles coaxially rotate along with the hinged handles, through holes are evenly distributed in the middle of the zymophyte cake discs, methane bacteria powder is placed in the through holes, sealing films are sealed on the two sides of the zymophyte cake discs, and the sealing films can be opened in stages to expose the through holes. Aiming at the problems of long lag phase, organic acidification accumulation, low efficiency and the like in the existing solid fermentation, the inoculation mode is changed, and the methane bacteria are absolutely superior in a specific area by gradually adding the inoculum, so that the effect of the methane bacteria is fully exerted, the organic acid accumulation and the acid inhibition are avoided, and the gas production efficiency is improved.

Description

technical field [0001] The invention belongs to the field of fermentation devices, and mainly relates to a small-scale non-mixing and non-mixing seeding continuous solid anaerobic fermentation device. Background technique [0002] my country is the country that produces the largest amount of organic waste. The annual discharge of livestock and poultry manure is about 3.8 billion tons, and the output of crop straw reaches 800 million tons, but the harmless treatment and resource utilization rate are extremely low, and more than 90.0% of the livestock and poultry manure is directly discharged into the surrounding environment without treatment. 55.0% of the straw was directly burned or discarded at will, making "resources" a "pollution source". Biogas production by anaerobic fermentation is an effective way for the above-mentioned agricultural organic waste treatment and resource utilization. [0003] In terms of fermentation process: composting and wet anaerobic fermentation...

AI Technical Summary

Problems solved by technology

Wet anaerobic fermentation has problems such as serious waste of water resources, large amount of biogas slurry, and easy to produce secondary pollution.

Images