广西科学院学报2023，Vol.39Issue(4)：341-348,8.DOI:10.13657/j.cnki.gxkxyxb.20231226.001
甘蔗渣霉变对厌氧发酵产沼气的影响
Effect of Moldy Sugarcane Bagasse on Biogas Production by An-aerobic Fermentation
摘要
Abstract
In order to explore the effect of moldy sugarcane bagasse on biogas production by anaerobic fermen-tation,normal sugarcane bagasse and moldy sugarcane bagasse were selected to determine their structure,physicochemical properties,fermentation process parameters,and substance removal rate.The results showed that the structure of moldy sugarcane bagasse was destroyed,and there were more attachments and microor-ganisms on its surface.Compared with normal sugercane bagasse,the moisture content of moldy sugarcane bagasse increased by 44.6%,the soluble sugar content decreased by 95.4%,the total nitrogen content in-creased by 48.6%,and the lignocellulose content increased.During the anaerobic fermentation process,the maximum value of soluble chemical oxygen demand(3 229.0 mg/L)of normal sugarcane bagasse was 3.4 times that of moldy sugarcane bagasse,and the maximum value of Total Volatile Fatty Acids(TVFA)of normal sugarcane bagasse was 1 855.8 mg/L,which was 26.2%higher than that of moldy sugarcane ba-gasse.In addition,the Total Solids(TS)removal rate of moldy sugarcane bagasse was 17.2%lower than that of normal sugarcane bagasse.The Volatile Solids(VS)removal rate of moldy sugarcane bagasse was only 56.7%of that of normal sugarcane bagasse.The cumulative biogas production and methane production of moldy sugarcane bagasse were reduced by 60.6%and 77.9%,respectively,compared with normal sugarcane bagasse.In summary,the structure of sugarcane bagasse is destroyed after moldy transformation,and the sol-uble sugar content decreases sharply,greatly reducing the potential for biogas production.关键词
甘蔗渣/储存/霉变/厌氧发酵/沼气Key words
sugarcane bagasse/storage/moldy/anaerobic fermentation/biogas分类
农业科技引用本文复制引用
陆兵,黄章南,李秀萍,潘世优,黎贞崇,韦宇拓..甘蔗渣霉变对厌氧发酵产沼气的影响[J].广西科学院学报,2023,39(4):341-348,8.基金项目
国家自然科学基金面上项目(52270121)和教育部科技发展中心"虚拟仿真技术在职业教育教学中的创新应用"专项课题(ZJXF2022244)资助. （52270121）
