Application of biomass-derived hydrochar in process stability of anaerobic digestion

被引：10

作者：

Ayodele, Olubunmi O. ^{[1
,2
,4
]}

Adekunle, Abiodun E. ^{[3
]}

Alagbe, Olajumoke A. ^{[5
]}

Anguruwa, Gloria T. ^{[2
]}

Ademola, Adeola A. ^{[2
]}

Odega, Chioma A. ^{[2
]}

Dornack, Christina ^{[1
]}

机构：

[1] Tech Univ Dresden, Inst Waste Management & Circular Econ, Pirna, Germany

[2] Forestry Res Inst Nigeria, Forest Prod Dev & Utilizat, PMB 5054, Dugbe Ibadan, Nigeria

[3] Forestry Res Inst Nigeria, Biotechnol Ctr, PMB 5054, Dugbe Ibadan, Nigeria

[4] Univ N Carolina, Joint Sch Nanosci & Nanoengn, Nanosci Dept, Chapel Hill, NC 27401 USA

[5] Forestry Res Inst Nigeria, Sustainable Forest Management, PMB 5054, Dugbe Ibadan, Nigeria

来源：

BIORESOURCE TECHNOLOGY REPORTS | 2022年 / 17卷

关键词：

Biogas; OFMSWs; Hydrothermal carbonization; Inoculum; Stability; MUNICIPAL SOLID-WASTE; BIOCHAR; CONVERSION; ACID; OIL;

D O I：

10.1016/j.biteb.2021.100903

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Stability and in-situ upgrading of biogas in anaerobic digestion (AD) processes using biomass-derived hydrochar as a cheaper alternative is presented. The influence of hydrochar on AD of organic fractions of municipal solid wastes (OFMSWs) was conducted at OLR of 1 kg VS/[m3.d]). The biochemical methane potential of hydrochar was insignificant while digester amended with 20% hydrochar had a longer lag phase, producing biogas after the third day of AD. The total volume of biogas of 464.29 NI/kg oTS in digester containing both OFMSWs and hydrochar was higher when compared with digester without hydrochar (257.62 NI/kg oTS). Likewise, the methane content of digester containing hydrochar was 10% higher. The pH and electrical conductivity in amended digester declined daily from 8.36 to 7.31 and 17.12 to 8.15 mS/cm, respectively. The stability indicators responded positively to the addition of hydrochar to OFMSWs, outperforming other digesters treated with only hydrochar or OFMSWs.

引用

页数：8

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