Research Article
[Retracted] Anaerobic Treatment of Palm Oil Mill Effluent in Pilot-Scale Anaerobic EGSB Reactor
Table 3
Evaluation of anaerobic EGSB for biogas production.
| Parameter | Unit | Average value |
| 2 EGSB total effective volume | m3 | 847.8 | Capacity | m3/d | 86.4 ± 4.1 | Influent COD | mg/L | 71179 ± 10950 | EGSB effluent COD | mg/L | 12341 ± 1338 | DAF effluent COD | mg/L | 3587 ± 546 | EGSB effluent COD deduct recycled sludge | mg/L | 7917 ± 955 | Apparent COD removal efficiency | % | 94.84 ± 1.08 | Real COD removal efficiency | % | 88.56 ± 1.97 | Biogas production | m3/d | 2389.0 ± 201.3 | COD reduction | kg/d | 5465.8 ± 259.4 | Organic loading rate (OLR) | Kg COD/m3·d | 6.45 ± 0.61 | Efficiency (in POME injection) | m3 biogas/m3 POME | 27.65 ± 3.02 | Efficiency (in POME injection) | m3 biogas/kg COD | 0.44 ± 0.04 |
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Note: all data are shown as means ± standard deviation of all samples.
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