利用搅拌提升沼气发酵效率的研究进展

摘要

搅拌可以提升厌氧发酵产沼气效率,但其内在机理尚不够明确,所以在复杂工况下很难寻得效率最优的搅拌形式.但近年来该方面研究成果较多,各种搅拌形式在不同原料特性、发酵条件、工况参数运行下的效果不断得到验证,机理也逐渐得以明晰.文章就该领域近年来国内外主要研究成果进行综述,在一定程度上阐明了某些特定工况下适宜采用的搅拌形式.%Biogas fermentation efficiency can be promoted by stirring,but its internal mechanisms remain unclear,so the best stirring mode is difficult to be selected under complex operation conditions.Researches of recent years proved the effects of different stirring modes under different characteristics of raw materials and different operation conditions,and the working mechanisms was gradually become clear.This paper summarized the recent research findings at home and abroad.And to a certain extent,it illustrated suitable stirring modes for specific working conditions.