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Table 1 Performance of anaerobic co-digestion abattoir wastes with different substrates

From: Effect of carbon-rich-waste addition as co-substrate on the performance and stability of anaerobic digestion of abattoir wastewater without agitation

Co-digested substrate(s) Operating conditions Improvement Reference
Cattle slurry (manure) with fruit–vegetable waste (FVW) and chicken manure Continuous stirred tank reactor (CSTR); mesophilic temp; 21 days HRT; OLR 3.19–5.01 kg VS/m3 day 20–50% CH4 yield increment Callaghana et al. (2002)
Manure, solid abattoir wastes (cattle and swine), and FVW Semi-continuous stirred reactor; mesophilic temp; up to 1.3 kg VS/m3 day OLRT; 30 days HRT By factory 5 biogas yield increment Alvarez and Lidén (2008)
Rendering and abattoir solid wastes CSTR; Lab-scale; semi-continuously fed; 35 and 55 °C temp; 1.0 and 1.5 kg VS/m3 day OLRs; 50 days HRT 0.262–0.572 m3 CH4/kg VS added Bayr et al. (2012)
Solid cattle abattoir wastes (ASW), manure, various crops, and municipal solid wastes (MSW) Anaerobic batch experiment; thermophilic (55 °C) for 70 days: different mixture ratios 31% increase of the expected CH4 yield at equal mixture of each substrates Pagés-Díaz et al. (2014);
Pig abattoir wastes with sewage sludge Batch and semi-continuous experiments; 35 °C Temp >50% the methane yield exceeding than mono-digestion Borowski and Kubacki (2015)
ASW with manure, various crops, and MSW in different mix ratios Semi-continuous and batch operation mode 70–75% methane yield exceeding than mono-digestion Pagés-Díaz et al. (2015)
Pasteurized abattoir waste, pig slurry (manure) and glycerine CSTR; mesophilic temp; 21–33 days HRT; 0.8–3.2 kg COD/m3 day OLR 153% CH4 yield increment (Rodríguez-Abalde et al. 2017)
Food waste (FW) with abattoir waste (AW) and sewage sludge(MSS) Lab-scale reactor; semi-continuous operation; mesophilic conditions; 30 SRT 0.63 m3 CH4/kg VS fed for (FW+ AW) Borowski et al. (2018)
0.46 m3 CH4/kg VS fed for (FW + MSS)
Pig abattoir by-products (5% pork by-products mixed with pig manure) CSTR; batch and semi-continuously fed; 37 °C temp (mesophilic) 40% higher CH4 production compared to AD of manure alone Hejnfelt and Angelidaki (2009)
FVW and abattoir wastewater (AWW) Single-stage ASBR; mesophilic temp; 20 days HRT; 2.56 g TVS/l day OLR (30%FVW:70%AW) 75% biogas yield improved Bouallagui et al. (2009b)
FVW, fish waste, AWW and waste activated sludge ASBR; mesophilic temp; 10 days HRT; 2.46–2.51 g VS/l day OLR 43.8–51.5% biogas yield Bouallagui et al. (2009a)
Olive mill wastewater with AWW Upflow anaerobic filter; batch; mesophilic 44.2% more biogas yield of the mixture than AWW mono-digestion Gannoun et al. (2007)
Cattle abattoir wastewater with FVW in different proportion Unstirred two-staged ASBR; mesophilic temp; semi-continuous fed 70.26% more biogas yield and 57.11% VS reduction of the mixture than AWW mono-digestion This study