TY - JOUR
T1 - Accelerated bio-methane production rate in thermophilic digestion of cardboard with appropriate biochar
T2 - Dose-response kinetic assays, hybrid synergistic mechanism, and microbial networks analysis
AU - Li, Dunjie
AU - Song, Liuying
AU - Fang, Hongli
AU - Li, Ping
AU - Teng, Yue
AU - Li, Yu You
AU - Liu, R.
AU - Niu, Q.
N1 - Funding Information:
The authors’ research is supported by the National Natural Science Foundation of China (Grant No. 51608304 and Grant No. U1806216 ) and Young Scholars Program of Shandong University ( 2018WLJH53 ). “The Fundamental Research Funds of Shandong University ” and China Postdoctoral Science Foundation ( 2017M622209 and 2019T120599 ) were also acknowledged. Research Fund of China–America CRC for Environment & Health, Shandong University ( SDCRC2019-02 ), Research Fund of Tianjin Key Laboratory of Aquatic Science and Technology ( TJKLAST-ZD-2017-04 ) and Research Fund of Jiangsu Key Laboratory of Anaerobic Biotechnology ( JKLAB201702 ) were also partly supported this work.
Funding Information:
The authors? research is supported by the National Natural Science Foundation of China (Grant No. 51608304 and Grant No. U1806216) and Young Scholars Program of Shandong University (2018WLJH53). ?The Fundamental Research Funds of Shandong University? and China Postdoctoral Science Foundation (2017M622209 and 2019T120599) were also acknowledged. Research Fund of China?America CRC for Environment & Health, Shandong University (SDCRC2019-02), Research Fund of Tianjin Key Laboratory of Aquatic Science and Technology (TJKLAST-ZD-2017-04) and Research Fund of Jiangsu Key Laboratory of Anaerobic Biotechnology (JKLAB201702) were also partly supported this work. The authors declare no competing financial interest.
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/10
Y1 - 2019/10
N2 - The effect of biochar on the thermophilic digestion of mono-cardboard was investigated. Compared with control group (T0), the maximum rate of biomethane production was significantly improved after the addition of biochar, especially, it has been improved by 40.6% in T1 (0.77 g/gTS sludge) with the methane production of 89.28 mL/gVS. Also, the addition of biochar improved the efficiency of acidogenesis and acetogenesis. However, adverse effects were observed with the biomethane production decreased by 33.98% and the lag phase extended by 35 h in T5 (3.86 g/gTS sludge). Especially, the results showed that the adsorption of biochar played important roles in digestion. In addition, acetoclastic Methanosaeta which considered to be involved in interspecific electron transfer (IET) was enriched after biochar added and the highest diversity of acetogens was obtained in T1. Oppositely, microbial networks analysis showed that the excessive biochar may destroy the diversity of microorganism drastically.
AB - The effect of biochar on the thermophilic digestion of mono-cardboard was investigated. Compared with control group (T0), the maximum rate of biomethane production was significantly improved after the addition of biochar, especially, it has been improved by 40.6% in T1 (0.77 g/gTS sludge) with the methane production of 89.28 mL/gVS. Also, the addition of biochar improved the efficiency of acidogenesis and acetogenesis. However, adverse effects were observed with the biomethane production decreased by 33.98% and the lag phase extended by 35 h in T5 (3.86 g/gTS sludge). Especially, the results showed that the adsorption of biochar played important roles in digestion. In addition, acetoclastic Methanosaeta which considered to be involved in interspecific electron transfer (IET) was enriched after biochar added and the highest diversity of acetogens was obtained in T1. Oppositely, microbial networks analysis showed that the excessive biochar may destroy the diversity of microorganism drastically.
KW - Biochar
KW - Biomethane
KW - Microbial networks analysis
KW - Mono-cardboard digestion
KW - Thermophilic digestion
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U2 - 10.1016/j.biortech.2019.121782
DO - 10.1016/j.biortech.2019.121782
M3 - Article
C2 - 31326650
AN - SCOPUS:85069576864
SN - 0960-8524
VL - 290
JO - Agricultural Wastes
JF - Agricultural Wastes
M1 - 121782
ER -
