摘要
添加微量元素可以提高厌氧发酵系统稳定性,同时提高沼气产量。本次研究考察微量元素对厌氧发酵过程中产沼气量和微生物群落影响,结果表明,添加单一Co、Ni元素和混合Fe、Co、Ni元素条件下产气量分别提高了1.18倍、1.69倍、1.85倍。高通量测序结果显示,添加微量元素增加了厌氧发酵系统中微生物的多样性和物种丰度,研究结果表明微量元素对厌氧发酵优势菌群的生长和活性具有正向作用,提高了厌氧发酵产气量。该结果可为微量元素提高厌氧发酵效能提供借鉴。
Adding trace elements can improve the stability of anaerobic fermentation system and increase biogas production at the same time.In this study,the effects of trace elements on biogas production and microbial community during anaerobic fermentation were investigated.The results showed that the gas production increased by 1.18 times,1.69 times and 1.85 times respectively under the conditions of adding single Co,Ni elements and mixed Fe,Co and Ni elements times.The results of high-throughput sequencing showed that trace elements increased the diversity and species abundance of microorganisms in the anaerobic fermentation system.The results showed that trace elements had a positive effect on the growth and activity of the dominant flora in anaerobic fermentation,and improved anaerobic fermentation gas production.The results can provide reference for trace elements to improve the efficiency of anaerobic fermentation.
作者
韦采妮
赵晨菊
黄河笑
李显芳
万巧玲
余薇薇
Wei Caini;Zhao Chenju;Huang Hexiao;Li Xianfang;Wan Qiaoling;Yu Weiwei(Key Laboratory of Water Conservancy and Water Transportation Engineering,Hohai College,Chongqing Jiaotong University,Chongqing,400074;Chongqing Monitoring Station of National Urban Water Supply Quality Monitoring Network,Chongqing,400060;Chongqing Yudong Water Co.,Ltd.,Chongqing,404000)
出处
《当代化工研究》
2022年第20期23-25,共3页
Modern Chemical Research
基金
国家自然科学基金项目“沼灌区类固醇雌激素及其硫酸盐在土壤中迁移转化机理研究”(项目编号:51608079)
重庆市研究教育教学改革研究项目“面向多学科交叉的市政工程研究生创新能力培养综合体系构建研究与实践”(项目编号:yig182028)
重庆市建设科技项目“重庆地区城市污泥典型指标的检测及调查研究”(项目编号:20210709)。
关键词
猪粪
厌氧发酵
微量元素
微生物群落
pig manure
anaerobic fermentation
trace elements
microbial community
