Town multi-element organic waste for preparing biogas and method for preparing biogas from same

Abstract

The invention relates to a method for preparing biogas, in particular to town multi-element organic waste for preparing biogas and a method for preparing biogas from the town multi-element organic waste.The problems existing in the prior art that materials are single, the degradation efficiency is low, the biogas yield is low, energy consumption is high, and operation is not stable are solved.According to the method, the multi-element organic waste is subjected to different preprocessing, and the degrading capacity of fermentation microorganisms for waste is improved.As for straw materials with the long fermentation period, firstly, microbial populations in livestock manure are utilized for performing hydrolysis treatment on the straw materials, then, the straw materials are transferred into an acid production reaction system to be mixed with other materials for fermentation so as to keep pace with materials which are subjected to a reaction rapidly, all the materials can be subjected to the hydrolysis and acidification steps so as to enter the methane production stage at the same time, fermentation is completed, and therefore complete fermentation of the materials is achieved.The operation is simple and easy to implement, the biogas production efficiency of fermentation raw materials is effectively improved, the selection range of the fermentation raw materials is enlarged, and the disposal intensity of organic solid waste in a town is increased.

Description

technical field [0001] The invention relates to the field of rural renewable energy utilization and environmental protection, in particular to a method for improving the efficiency of anaerobic digestion of multiple organic wastes in villages and towns. Background technique [0002] With the continuous rapid development of my country's economy and the continuous advancement of the construction of new countryside, major changes have taken place in the industrial structure and consumption patterns of villages and towns. Daily necessities in villages and towns have been separated from most of the local production activities. In the era of agricultural society, the traditional closed-loop production mode of organic matter in village and town production and life has been completely cut off by the commercialization, mechanization, and scale mode of modern agriculture and sustainable life. The quantity and types of domestic garbage in villages and towns have increased significantl...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems of single solid organic waste materials in villages and towns in the prior art, incomplete digestion of fermentation materials, low degradation efficiency, low biogas output, high energy consumption, and unstable operation, and proposes a method for preparing Multi-element organic waste from villages and towns for biogas and method for preparing biogas

Images