High-solids anaerobic digestion;
Feedstock to inoculum ratio;
Percolate recirculation time;
Organic fraction of municipal solid waste;
Biomethane;
FOOD WASTE;
CO-DIGESTION;
AMMONIA;
SLUDGE;
BIOAUGMENTATION;
DEGRADATION;
PROPIONATE;
STRAW;
D O I:
10.1016/j.biortech.2021.125335
中图分类号:
S2 [农业工程];
学科分类号:
0828 ;
摘要:
The effects of feedstock to inoculum (F:I) ratio and percolate recirculation time (PRT) were studied for the highsolids anaerobic digestion (HSAD) of the organic fraction of municipal solid waste (OFMSW). Six mesophilic HSAD systems were operated at different F:I ratios (1 to 3 kg VS/kg VS; PRT = 2.5 h/d) and PRTs (1.5 to 3.5 h/d; F:I = 2 kg VS/kg VS). The F:I ratio of 1 provided up to 86% of the theoretical methane potential of OFMSW. In contrast, F:I ratio of 3 provided only 34% methane recovery due to volatile fatty acids (VFAs) accumulation and pH drop. Despite F:I ratio of 2 could provide 70% methane recovery, it could enable almost 45% higher organics processing capacity (VS basis) and lower solids washout during percolate recirculation, as compared to the F:I ratio of 1. However, different examined PRTs showed marginal impacts on methane yields with comparable changes in profiles of percolate characteristics.
机构:
Indian Inst Technol Delhi, Dept Biochem Engn & Biotechnol, New Delhi 110016, India
Univ Tokyo, Grad Sch Engn, Dept Urban Engn, Bunkyo Ku, Tokyo 1138656, JapanIndian Inst Technol Delhi, Dept Biochem Engn & Biotechnol, New Delhi 110016, India
Acharya, S. M.
;
Kundu, K.
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机构:
Indian Inst Technol Delhi, Dept Biochem Engn & Biotechnol, New Delhi 110016, India
Helmholtz Zentrum Munchen, German Res Ctr, Inst Groundwater Ecol, D-85764 Neuherberg, GermanyIndian Inst Technol Delhi, Dept Biochem Engn & Biotechnol, New Delhi 110016, India
Kundu, K.
;
Sreekrishnan, T. R.
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机构:
Indian Inst Technol Delhi, Dept Biochem Engn & Biotechnol, New Delhi 110016, IndiaIndian Inst Technol Delhi, Dept Biochem Engn & Biotechnol, New Delhi 110016, India
机构:
Mediterranea Univ Reggio Calabria, Dept DICEAM, Via Graziella, I-89124 Reggio Di Calabria, ItalyMediterranea Univ Reggio Calabria, Dept DICEAM, Via Graziella, I-89124 Reggio Di Calabria, Italy
Calabro, Paolo S.
;
Folino, Adele
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Mediterranea Univ Reggio Calabria, Dept DICEAM, Via Graziella, I-89124 Reggio Di Calabria, ItalyMediterranea Univ Reggio Calabria, Dept DICEAM, Via Graziella, I-89124 Reggio Di Calabria, Italy
Folino, Adele
;
Tamburino, Vincenzo
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机构:
Mediterranea Univ Reggio Calabria, Dept Agr, Via Graziella, I-89122 Reggio Di Calabria, ItalyMediterranea Univ Reggio Calabria, Dept DICEAM, Via Graziella, I-89124 Reggio Di Calabria, Italy
Tamburino, Vincenzo
;
Zappia, Giovanni
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h-index: 0
机构:
Mediterranea Univ Reggio Calabria, Dept Agr, Via Graziella, I-89122 Reggio Di Calabria, ItalyMediterranea Univ Reggio Calabria, Dept DICEAM, Via Graziella, I-89124 Reggio Di Calabria, Italy
Zappia, Giovanni
;
Zema, Demetrio A.
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h-index: 0
机构:
Mediterranea Univ Reggio Calabria, Dept Agr, Via Graziella, I-89122 Reggio Di Calabria, ItalyMediterranea Univ Reggio Calabria, Dept DICEAM, Via Graziella, I-89124 Reggio Di Calabria, Italy
机构:
Indian Inst Technol Delhi, Dept Biochem Engn & Biotechnol, New Delhi 110016, India
Univ Tokyo, Grad Sch Engn, Dept Urban Engn, Bunkyo Ku, Tokyo 1138656, JapanIndian Inst Technol Delhi, Dept Biochem Engn & Biotechnol, New Delhi 110016, India
Acharya, S. M.
;
Kundu, K.
论文数: 0引用数: 0
h-index: 0
机构:
Indian Inst Technol Delhi, Dept Biochem Engn & Biotechnol, New Delhi 110016, India
Helmholtz Zentrum Munchen, German Res Ctr, Inst Groundwater Ecol, D-85764 Neuherberg, GermanyIndian Inst Technol Delhi, Dept Biochem Engn & Biotechnol, New Delhi 110016, India
Kundu, K.
;
Sreekrishnan, T. R.
论文数: 0引用数: 0
h-index: 0
机构:
Indian Inst Technol Delhi, Dept Biochem Engn & Biotechnol, New Delhi 110016, IndiaIndian Inst Technol Delhi, Dept Biochem Engn & Biotechnol, New Delhi 110016, India
机构:
Mediterranea Univ Reggio Calabria, Dept DICEAM, Via Graziella, I-89124 Reggio Di Calabria, ItalyMediterranea Univ Reggio Calabria, Dept DICEAM, Via Graziella, I-89124 Reggio Di Calabria, Italy
Calabro, Paolo S.
;
Folino, Adele
论文数: 0引用数: 0
h-index: 0
机构:
Mediterranea Univ Reggio Calabria, Dept DICEAM, Via Graziella, I-89124 Reggio Di Calabria, ItalyMediterranea Univ Reggio Calabria, Dept DICEAM, Via Graziella, I-89124 Reggio Di Calabria, Italy
Folino, Adele
;
Tamburino, Vincenzo
论文数: 0引用数: 0
h-index: 0
机构:
Mediterranea Univ Reggio Calabria, Dept Agr, Via Graziella, I-89122 Reggio Di Calabria, ItalyMediterranea Univ Reggio Calabria, Dept DICEAM, Via Graziella, I-89124 Reggio Di Calabria, Italy
Tamburino, Vincenzo
;
Zappia, Giovanni
论文数: 0引用数: 0
h-index: 0
机构:
Mediterranea Univ Reggio Calabria, Dept Agr, Via Graziella, I-89122 Reggio Di Calabria, ItalyMediterranea Univ Reggio Calabria, Dept DICEAM, Via Graziella, I-89124 Reggio Di Calabria, Italy
Zappia, Giovanni
;
Zema, Demetrio A.
论文数: 0引用数: 0
h-index: 0
机构:
Mediterranea Univ Reggio Calabria, Dept Agr, Via Graziella, I-89122 Reggio Di Calabria, ItalyMediterranea Univ Reggio Calabria, Dept DICEAM, Via Graziella, I-89124 Reggio Di Calabria, Italy