China is a major agricultural country, and the production of agricultural waste is increasing year by year. However, the utilization rate of resources is still low. Anaerobic dry fermentation technology is mainly used to treat solid organic matter with a total solid content of 20%~40%(wt). It is an effective way to recycle agricultural waste resources, which has the advantages of low water consumption and high volumetric gas production rate. Due to the high solid content, there are still some problems in the anaerobic dry fermentation technology, such as slower reactor start-up, difficulty in mixing materials, and poor heat and mass transfer. Therefore, the innovation of anaerobic dry fermentation equipment and optimization of process parameters will directly affect the further promotion and application of this technology. The research and application status of anaerobic dry fermentation technology at home and abroad in recent years were summarized, the operating characteristics of typical batch and continuous anaerobic dry fermentation reactors were compared, and the effects of main process parameters on anaerobic dry fermentation were analyzed. The shortcomings of the current anaerobic dry fermentation technology were presented, and the future development trend of the technology was prospected in terms of technical equipment and process research, which is to develop design methods for key links in anaerobic dry fermentation equipment, and to carry out in-depth research on mechanisms, such as biogas residue rheological properties and microbial dynamic changes, etc.
陈润璐,李再兴,冯 晶,姚宗路,罗 娟,赵立欣.农业废弃物厌氧干发酵技术研究进展[J].河北科技大学学报,2020,41(4):365-373复制