摘要
为了优化蔬菜废弃物厌氧消化工艺,以白菜的废弃物为原料,采用批量厌氧消化工艺,设置不同搅拌频率(静置、间歇搅拌、连续搅拌)的3个实验组,在35℃±1℃的条件下厌氧消化。实验证明:间歇搅拌组累计产气量最多,能源产出指数最高,搅拌效果较好。证明间歇搅拌能同时平衡搅拌效果和经济性;间歇搅拌可防止沉淀、泡沫、结壳或浮层的形成,并促进沼气从基质中释放。这一结果可为蔬菜废弃物厌氧消化工程的搅拌工艺优化提供参考。
In order to optimize the anaerobic digestion process of vegetable waste,with cabbage waste as raw material,batch anaerobic digestion process was adopted.Three experimental groups with different stirring frequencies(standing,in⁃termittent stirring and continuous stirring)were set up,and anaerobic digestion was carried out at 35℃±1℃.The in⁃termittent stirring group had the highest cumulative gas production,the highest energy output index and the better stirring effect.It was proved that intermittent stirring could balance the stirring effect and economy at the same time.Intermittent stirring can prevent the formation of precipitation,foam,crust or floating layer,and promote the release of biogas from the matrix.This result can provide a reference for the optimization of the stirring process of the anaerobic digestion project of vegetable waste.
作者
李开靖
李江冉
梁承月
吴凯
杨斌
王昌梅
赵兴玲
柳静
杨红
尹芳
张无敌
LI Kaijing;LI Jiang-ran;LIANG Chengyue;WU Kai;YANG Bin;WANG Changmei;ZHAO Xingling;LIU Jing;YANG Hong;YIN Fang;ZHANG Wudi(College of Energy and Environmental Sciences,Yunnan Normal University,Kunming 650500,China;Lancang County Rural Energy Management Station,Lancang 665700,China;Yunnan Biogas Engineering Technology Research Center,Kunming 650500,China;Yunnan Normal University Graduate School,Kunming 650500,China)
出处
《中国沼气》
CAS
2024年第4期14-20,共7页
China Biogas
基金
云南省万人计划产业技术领军人才项目(20191096)
云南省基础研究计划(202001AT070094)
云南省国际科技合作专项(202003AF140001)
云南省基础研究专项青年项目(202201AU070058)
云南省教育厅科学研究基金项目(2022J0127)
云南师范大学博士启动项目(xj2021102918)
昆明市国际(对外)科技合作基地(GHJD⁃2020026)
云南省劳模创新工作室和云南省农村能源工程重点实验室基金。
关键词
蔬菜废弃物
搅拌频率
搅拌效果
经济性
vegetable waste
stirring frequency
stirring effect
economy
