中国沼气2026，Vol.44Issue(3)：36-41,6.DOI:10.20022/j.cnki.1000-1166.2026030036
污泥和农牧废弃物厌氧共消化产甲烷特性研究
Study on the Characteristics of Anaerobic Co-digestion of Sludge and Agricultural and Animal Husbandry Waste to Produce Methane
摘要
Abstract
Anaerobic co-digestion is an effective way to solve the problem of low gas production caused by the imbalance of carbon and nitrogen in the process of anaerobic digestion of single waste.In this study,sludge,cow dung and corn straw were used as substrates for mesophilic semi-dry anaerobic co-digestion,and the effects of C/N on biogas production and biogas slurry properties were investigated.The results showed that when the multi-substrate mixes anaerobic digestion and C/N was 25,the reaction system operates stably and the gas production performance of the system was the best.The cumu-lative methane production was 490 mL·g-1VS,which was 121.7％,21.6％and 19.8％higher than that of pure sludge,pure cow dung and pure corn straw.The fitting results of the modified Gompertz model R2 were all greater than 0.99,which could better reflect the methane production process of anaerobic digestion.Among them,the methane production rate of C/N25 group was the highest,which was 38.50 mL·g-1 VSd-1,and the digestion time was shorter,which is 15.47 d.The actual methane production was greater than the theoretical methane production,which had a good synergistic effect.The removal rates of TS and VS in C/N 25 group were 38.7％and 43.7％,respectively,and the removal rate of VS was the highest in each group.The results of this study provide technical parameters and practical guidance for the efficient treatment and utilization of agricultural biomass waste.关键词
污泥/牛粪/玉米秸秆/半干式厌氧共消化/C/N/甲烷产量Key words
sludge/cow dung/corn straw/semi dry anaerobic co-digestion/C/N/methane production分类
农业科技引用本文复制引用
李秀群,童业齐,王娟,刘建国..污泥和农牧废弃物厌氧共消化产甲烷特性研究[J].中国沼气,2026,44(3):36-41,6.基金项目
内蒙古自治区高等学校青年科技人才发展计划项目(NJYT22083) （NJYT22083）
呼和浩特市"揭榜挂帅"科技计划项目(2024-揭榜挂帅-农-1-1). （2024-揭榜挂帅-农-1-1）
