Enhancing anaerobic digestion for rural wastewater treatment with granular activated carbon (GAC) supplementation

[Display omitted] •Ultimate produced methane volume increased with granular activated carbon (GAC).•Acetate utilization rate increased with GAC injection regardless of temperature.•Adding GAC increased CH4 production and reduced lag time at low temperature (25 °C).•Syntrophobacteriales and hydrogeno...

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Bibliographic Details
Published in:Bioresource technology 2020-11, Vol.315, p.123890-123890, Article 123890
Main Authors: Park, Jeong-Hoon, Park, Jong-Hun, Lee, Sang-Hoon, Jung, Sokhee P., Kim, Sang-Hyoun
Format: Article
Language:English
Subjects:
Anaerobic digestion
Conductive materials
Granular activated carbon
Low temperature
Network analysis
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Summary:[Display omitted] •Ultimate produced methane volume increased with granular activated carbon (GAC).•Acetate utilization rate increased with GAC injection regardless of temperature.•Adding GAC increased CH4 production and reduced lag time at low temperature (25 °C).•Syntrophobacteriales and hydrogenotrophic methanogens were stimulated by GAC. Notwithstanding many efforts to increase the efficiency of anaerobic digestion at low-temperature (winter) conditions, a cost-effective and efficient method is lacking. This study proposes a low-cost method of low-temperature (
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2020.123890