TY - JOUR
T1 - Biogas Production and Microbial Community Dynamics during the Anaerobic Digestion of Rice Straw at 39-50 °c
T2 - A Pilot Study
AU - Yu, Qing
AU - Tian, Zhenzhen
AU - Liu, Jingyuan
AU - Zhou, Jun
AU - Yan, Zhiying
AU - Yong, Xiaoyu
AU - Jia, Honghua
AU - Wu, Xiayuan
AU - Wei, Ping
N1 - Publisher Copyright:
© 2018 American Chemical Society.
PY - 2018/4/19
Y1 - 2018/4/19
N2 - The purpose of this study was to investigate the anaerobic digestion (AD) of rice straw at different temperatures in a 300 m3 bioreactor. The results showed that the biogas yield was 401.9 m3/ton (dry straw weight) in this AD system. The contents of total solids, volatile solids, chemical oxygen demand, pH, NH4+-N, and volatile fatty acids were all in the optimal range, indicating that the entire AD system was stable and efficient. In addition, the phylum Bacteroidetes was the main type of bacteria found during the AD process. When the temperature increased, the relative abundance ratio of Methanoculleus, Methanosarcina, and Firmicutes increased. The phyla Bacteroidetes and Fibrobacteres predominated in straw samples, and the relative abundance ratio of Firmicutes and Bacteroidetes in thermophilic AD was much greater than that in mesophilic AD. This study provides new evidence regarding the effects of temperature on the community changes of specific microbiota in the AD of rice straw.
AB - The purpose of this study was to investigate the anaerobic digestion (AD) of rice straw at different temperatures in a 300 m3 bioreactor. The results showed that the biogas yield was 401.9 m3/ton (dry straw weight) in this AD system. The contents of total solids, volatile solids, chemical oxygen demand, pH, NH4+-N, and volatile fatty acids were all in the optimal range, indicating that the entire AD system was stable and efficient. In addition, the phylum Bacteroidetes was the main type of bacteria found during the AD process. When the temperature increased, the relative abundance ratio of Methanoculleus, Methanosarcina, and Firmicutes increased. The phyla Bacteroidetes and Fibrobacteres predominated in straw samples, and the relative abundance ratio of Firmicutes and Bacteroidetes in thermophilic AD was much greater than that in mesophilic AD. This study provides new evidence regarding the effects of temperature on the community changes of specific microbiota in the AD of rice straw.
UR - http://www.scopus.com/inward/record.url?scp=85045951005&partnerID=8YFLogxK
U2 - 10.1021/acs.energyfuels.7b04042
DO - 10.1021/acs.energyfuels.7b04042
M3 - 文章
AN - SCOPUS:85045951005
SN - 0887-0624
VL - 32
SP - 5157
EP - 5163
JO - Energy and Fuels
JF - Energy and Fuels
IS - 4
ER -