生物加工过程2018,Vol.16Issue(3):60-70,11.DOI:10.3969/j.issn.1672-3678.2018.03.009
餐厨垃圾和市政污泥配料比对厌氧产甲烷特性及微生物多样性的影响
Biomethane production and microbial community change during the co-digestion of food waste and municipal sludge with different mix ratios
摘要
Abstract
In order to investigate the effects of food waste ( FW )/municipal sludge ( MS ) ratio on the reactor performance and microbial community diversity at the mesophilic temperature (38±0. 5)℃,lab-scale experiments were carried out at five volatile solid ( VS) ratios of FW:MS at 1:0,0:1,1:1,1:2, and 2:1. High-throughput sequencing technique was also used to reveal the microbial community composition of the anaerobic digestion system. Results showed that food waste ( FW)/municipal sludge ( MS ) ratio had complex influences on methane yield and microbial community. The accumulative maximum methane yield ( VS ) 232. 86 L/kg and removal of volatile solid content ( 46. 09%) were obtained when food waste ( FW)/municipal sludge ( MS) ratio was controlled at 1:1. High-throughput sequencing indicated that Bacteroidetes and Methanosarcina dominated in whole process of all the mixed systems. In conclusion,co-digestion system could significantly improve methane production by increasing microbial community diversity and synergistic effects between different species.关键词
厌氧/餐厨垃圾/市政污泥/甲烷/微生物群落Key words
anaerobic/food waste/municipal sludge/methane/microbial community分类
资源环境引用本文复制引用
朱英东,周俊,雍晓雨,谢欣欣,仉丽娟,贾红华,韦萍..餐厨垃圾和市政污泥配料比对厌氧产甲烷特性及微生物多样性的影响[J].生物加工过程,2018,16(3):60-70,11.基金项目
国家自然科学基金(21777069) (21777069)
国家重点研发计划重点专项课题(2016YFE0112800) (2016YFE0112800)
江苏省重点研发计划(BE2016389) (BE2016389)