Biomethane enhancement using reduced graphene oxide in anaerobic digestion of municipal solid waste

被引：3
作者：
Muratcobanoglu, Hamdi [1 ]
Gokcek, Oznur Begum [1 ,2 ]
Muratcobanoglu, Fatma [3 ]
Mert, Ruhullah Ali [1 ]
Demirel, Sevgi [1 ,2 ]
机构：
[1] Nigde Omer Halisdemir Univ, Dept Environm Engn, TR-51240 Nigde, Turkey
[2] Nigde Omer Halisdemir Univ, Dept Energy Sci & Technol, TR-51240 Nigde, Turkey
[3] Erciyes Univ, Dept Environm Engn, TR-38039 Kayseri, Turkey
来源：
BIORESOURCE TECHNOLOGY | 2022年 / 354卷
关键词：
Biogas; Conductive material; Direct interspecies electron transfer; Waste management; INTERSPECIES ELECTRON-TRANSFER; FOOD WASTE; SEWAGE-SLUDGE; PERFORMANCE; HYDROGEN;
D O I：
10.1016/j.biortech.2022.127163
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The present research investigated the impact of reduced graphene oxide (rGO) addition on the semi-continuous anaerobic digestion of the organic fraction of municipal solid waste (OFMSW) in the range of 0.5-10 gVolatileSolid(VS)/L(reactor)day organic loading rates (OLR). Adding rGO enhanced the rate and yield of biomethane production, and the maximum biomethane increment rate was obtained as 110% at an OLR of 4.0 gVS/L(reactor)day. However, after increasing the OLR to 6 gVS/L(reactor)day, there was a dramatic decrease in biomethane production because of volatile fatty acid (VFA) accumulation. Methanotrix is the predominant archaeal genus at OLRs lower than 6 gVS/L(reactor)day in reactors (89-97%). An increment in biomethane production was associated with the higher abundance of the Methanothrix genus in the rGO-supported reactor (rG) than in the control reactor (rC).
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页数：8
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