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

被引：5

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).

引用

页数：8

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