Hydrochar-facilitated anaerobic digestion: evidence for direct interspecies electron transfer mediated through surface oxygen-containing functional groups

S Ren, M Usman, DCW Tsang, S O-Thong… - Environmental …, 2020 - ACS Publications
Acceleration of the anaerobic digestion (AD) process is crucial to achieving energy-efficient
recycling of organic wastes. Hydrochar is produced by hydrothermal liquefaction of biomass …

Combined microbial transcript and metabolic analysis reveals the different roles of hydrochar and biochar in promoting anaerobic digestion of waste activated sludge

Z Shi, M Usman, J He, H Chen, S Zhang, G Luo - Water Research, 2021 - Elsevier
Hydrothermal pretreatment of waste activated sludge (WAS) could eliminate the rate limiting
step of anaerobic digestion (AD)-hydrolysis. However, the high organic loading rate may …

Redox-active biochar and conductive graphite stimulate methanogenic metabolism in anaerobic digestion of waste-activated sludge: beyond direct interspecies …

C Lü, Y Shen, C Li, N Zhu, H Yuan - ACS sustainable chemistry …, 2020 - ACS Publications
Graphite and pyrolytic biochar are two electrically active but functionally distinct carbon
materials that have been widely used to enhance methanogenic performance of anaerobic …

Biochar regulates enzymes activity and interspecies electron transfer to promote bioenergy recovery from a continuous two-stage food waste anaerobic digestion …

T Yuan, R Sun, M Shao, Q Chen, Y Lin, Q Xu - Journal of Cleaner …, 2023 - Elsevier
The influence of biochar on the performance of food waste anaerobic digestion in a
continuous two-stage process was examined. Biochar was added to a methanogenic (MG) …

Role of redox-active biochar with distinctive electrochemical properties to promote methane production in anaerobic digestion of waste activated sludge

Y Shen, Y Yu, Y Zhang, M Urgun-Demirtas… - Journal of cleaner …, 2021 - Elsevier
Biochar has been reported as an effective additive to improve methane production during
anaerobic digestion (AD). However, the mechanism for such a stimulatory impact remains …

A review on biochar-mediated anaerobic digestion with enhanced methane recovery

L Qiu, YF Deng, F Wang, M Davaritouchaee… - … and Sustainable Energy …, 2019 - Elsevier
This work comprehensively reviewed the research progress of biochar application in
enhancing anaerobic digestion (AD) proficiency. The biogas production and methane …

Hydrochar prepared from digestate improves anaerobic co-digestion of food waste and sewage sludge: Performance, mechanisms, and implication

Q Xu, L Luo, D Li, D Johnravindar, S Varjani… - Bioresource …, 2022 - Elsevier
This work reported a new waste functionalization and utilization method, which use
digestate to prepare hydrochar to improve methane production from food waste (FW) and …

Biochar triggers methanogenesis recovery of a severely acidified anaerobic digestion system via hydrogen-based syntrophic pathway inhibition

G Wang, Q Li, C Yuwen, K Gong, L Sheng, Y Li… - International Journal of …, 2021 - Elsevier
Rapid methanogenesis recovery of an acidified anaerobic digestion (AD) system is a
challenging issue in engineering application, due to the unfavorably thermodynamics of …

Deciphering the effects of engineered biochar on methane production and the mechanisms during anaerobic digestion: Surface functional groups and electron …

Q Jiang, P Wu, X Zhang, Y Zhang, M Cui, H Liu… - Energy Conversion and …, 2022 - Elsevier
Along with the growth in carbon-based strategies for methanogenic improvement, there is
increasing concern over correlations between biochar properties and stimulatory effects …

Improved methane production with redox-active/conductive biochar amendment by establishing spatial ecological niche and mediating electron transfer

J Bu, BB Hu, HZ Wu, MJ Zhu - Bioresource Technology, 2022 - Elsevier
The multifunctional roles of biochar as an additive in improving the performance of
anaerobic digestion (AD) has not been perfectly understood. In this study, the effects of …