Open Access
Table 6
Comparison analysis of key parameters for GFDR, HST, and CSTR reactors for biogas production.
| Parameter | GFDR | HST | CSTR |
|---|---|---|---|
| Reactor volume | 22 m3 (medium-scale) | 340 m3 (large-scale) | 10 L |
| Main substrate | Livestock manure (horses, cows, camels, sheep) | Food waste | Poultry, swine, and cattle manure |
| Methane content (%) | 56.40% | 58 ± 0.2% | 51.4% |
| Hydraulic retention time (HRT) | 14 days | 48 days | 20 days |
| Economic feasibility | Low cost, feasible for small-to-medium scale operations | High capital cost, but cost-effective at a large scale | High cost, flexible at a small scale |
| Reference | This study | Westerholm et al. [64] | Samiotis et al. [65] |
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