Table 5.
Overview of the plants analysed in the included studies (BG= biogas plants implementing anaerobic digestion, and BC= power generation through biogas combustion).
| Reference | Type of Plant | Classification of Adopted Feedstock | Detailed Description of Feedstock as Reported in the Paper | Plant Size (Generation Capacity/Amount of Feedstock Processed) | |||
|---|---|---|---|---|---|---|---|
| Title | CR | MSW | AM | WWS | |||
| Duan et al., 2020 [26] | BG | x | Human waste at elevated influent feedstock concentration | – | |||
| Iordan et al., 2016 [10] | BG | x | Sewage sludge, fats, sludge from septic tanks, and other biological substrates | Analysis for producing 1 MJ of energy | |||
| Ke et al., 2022 [28] | BG | x | Cattle manure, swine manure, straw–manure mixture, kitchen waste, and chicken manure | – | |||
| Kuo and Dow, 2017 [24] | BG | x | x | fats, oils, and grease (FOG); food waste; and wastewater sludge | 45,500 m3/day | ||
| Laitinen et al., 2016 [30] | BC | x | Wood chips, hog fuel from stumps, bark, sawdust, thermally dried sludge, peat, and SRF (solid recovered fuel) | ||||
| Ławniczek-Wałczyk et al., 2012 [31] | BC | x | Agricultural biomass co-combusted with pulverised coal | 75 + 200 + 170 MW | |||
| Ławniczek-Wałczyk et al., 2017 [32] | BC | x | 80% wood chips and 20% agricultural waste (pellets and briquettes, corn briquettes, and sunflower pellet) | 205 MW | |||
| Madsen et al., 2009 [25] | BC | x | Straw and wood chips | – | |||
| Madsen, 2006 [21] | BC | x | Straw and different kinds of wood chips (bark chips with salt water and forest chip). | – | |||
| Mbareche et al., 2018 [33] | BG | x | x | Two plants analysed: 1. Primary and secondary sludge from wastewater treatment and organic industrial food waste. 2. Domestic waste under thermophilic conditions. |
40,000 + 27,000 tons/year | ||
| Merico et al., 2020 [22] | BG | x | Biogas production from agricultural wastes and biomasses | 999 kWhel (1069 kWht) | |||
| Tolvanen and Hänninen, 2006 [23] | BG | x | Waste treatment through digestion of kitchen biowaste | Volume of reactors: 1600 and 1800 m3 | |||
| Traversi et al., 2015 [27] | BG | x | Agricultural and livestock biomasses | – | |||
| Traversi et al., 2018 [29] | BG | x | 3 types of plants in relation to the origin of the biomasses introduced into the digester: 3 plants that use ALB (1 in thermophilic and 2 in mesophilic conditions), 1 plant that mainly uses WWTS (mesophilic), and 1 plant that mainly uses OFMSW and FFbP (thermophilic conditions). | 3 MW | |||
| Zheng et al., 2020 [34] | BG | x | Food waste | 300 tons/day | |||