Research output: Contribution to journal › Article › peer-review
Pilot-scale two-phase anaerobic digestion of deoiled food waste and waste activated sludge: Effects of mixing ratios and functional analysis. / Jiang, Wei; Tao, Jiale; Luo, Jiwu et al.
In: Chemosphere, Vol. 329, 138653, 07.2023.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Pilot-scale two-phase anaerobic digestion of deoiled food waste and waste activated sludge: Effects of mixing ratios and functional analysis
AU - Jiang, Wei
AU - Tao, Jiale
AU - Luo, Jiwu
AU - Xie, Wengang
AU - Zhou, Xiaojuan
AU - Cheng, Boyi
AU - Guo, Gang
AU - Ngo, Huu Hao
AU - Guo, Wenshan
AU - Cai, Hui
AU - Ye, Yuanyao
AU - Chen, Yiqun
AU - Pozdnyakov, Ivan P
N1 - Acknowledgements: This work was financially supported by the National Key Research and Development Program of China (grant no. 2019YFC1904004). In addition, the authors acknowledge the support of the Huazhong University of Science & Technology Analytical & Testing Center. Copyright © 2023. Published by Elsevier Ltd.
PY - 2023/7
Y1 - 2023/7
N2 - Anaerobic co-digestion of deoiled food waste (dFW) and waste activated sludge (WAS) can address the challenges derived from mono-digestion of FW. In the present study, a pilot-scale methanogenic bioreactor of a two-phase anaerobic digestion system was developed to explore the impact of dFW/WAS volatile solids ratios on the overall performance, microbial community, and metabolic pathways. Besides, the tech-economic of the system was analyzed. The results showed that the degradation efficiency of soluble chemical oxygen demand (SCOD) was more than 84.90% for all the dFW/WAS ratios (v/v) (1:0, 39:1, 29:1, 19:1 and 9:1). Moreover, the dominant genus of bacteria and archaea with different ratios were Lactobacillus (66.84-98.44%) and Methanosaeta (53.66-80.09%), respectively. Co-digestion of dFW and WAS (29: 1 in v/v ratios) obtained the highest yield of methane (0.41 L CH4/Ladded) with approximately 90% of SCOD being removed. In the pilot-scale experiment, the co-digestion of FW and WAS makes positive contribution to reusing solid waste for improving solid management.
AB - Anaerobic co-digestion of deoiled food waste (dFW) and waste activated sludge (WAS) can address the challenges derived from mono-digestion of FW. In the present study, a pilot-scale methanogenic bioreactor of a two-phase anaerobic digestion system was developed to explore the impact of dFW/WAS volatile solids ratios on the overall performance, microbial community, and metabolic pathways. Besides, the tech-economic of the system was analyzed. The results showed that the degradation efficiency of soluble chemical oxygen demand (SCOD) was more than 84.90% for all the dFW/WAS ratios (v/v) (1:0, 39:1, 29:1, 19:1 and 9:1). Moreover, the dominant genus of bacteria and archaea with different ratios were Lactobacillus (66.84-98.44%) and Methanosaeta (53.66-80.09%), respectively. Co-digestion of dFW and WAS (29: 1 in v/v ratios) obtained the highest yield of methane (0.41 L CH4/Ladded) with approximately 90% of SCOD being removed. In the pilot-scale experiment, the co-digestion of FW and WAS makes positive contribution to reusing solid waste for improving solid management.
KW - Deoiled food waste
KW - Microbial community
KW - Mixing ratios
KW - Pilot scale
KW - Waste activated sludge
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85152268128&origin=inward&txGid=06f5c8da7758c6fe06275a60d079d2ef
UR - https://www.mendeley.com/catalogue/c5b27b0f-a002-342f-8260-415d903f9337/
U2 - 10.1016/j.chemosphere.2023.138653
DO - 10.1016/j.chemosphere.2023.138653
M3 - Article
C2 - 37044139
VL - 329
JO - Chemosphere
JF - Chemosphere
SN - 0045-6535
M1 - 138653
ER -
ID: 47632351