Review Article
Biogas Production Optimization in the Anaerobic Codigestion Process: A Critical Review on Process Parameters Modeling and Simulation Tools
Table 2
Summary of operative parameters for AcoD optimization and their achievements in terms of methane yields.
| Substrate | Mixing ratio | C/N ratio | OLRs | Improvements | References |
| Empty fruit bunches (EFBs) and palm oil mill effluent (POME) | — | 45 | — | The cumulative CH4 increased from 0.17 to 2.03 l | [38] | Chicken manure (CM), dairy manure (DM), and rice straw (RS) | — | 25 and 30 | — | Maximum CH4 yield and reduction of ammonia inhibition were observed | [39] | FW/cow manure | 2.5 | — | 11.9 g COD/l/d | 441 ml CH4/g VS | [40] | Cabbage, cauliflower, and food waste | 0.36 : 0.64 | 45 | 0.06 kg VS/m3 h | Maximum CH4 and high biodegradability (98%) was attained | [41] | Sugarcane bagasse (SB) and fruit-vegetable waste (FVW) | 30 : 70 | — | — | CH4 yields increased by 56% over monodigestion of SB | [42] | WH/FW | 40 : 60 | 21.47 | — | Enhanced biogas volume by 55.2% with maximum biodegradability of 89.3% compared to digesting WH alone | [21] | R. Okamura and OMSW | 1 : 3 | 27.4 | — | Improved CH4 yields 177% over R. Okamura treating alone | [22] | CH/WH/FW | 25 : 25 : 50 | 23.7 | — | Biogas volume improved by 179.7% with maximum biodegradability of 89.22% over CH testing alone | [43] |
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h, hours; kg, kilograms.
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