Table 2 Comparison of UASB and EGSB reactors treating different substrates
Parameter | CSL | EG | ||
|---|---|---|---|---|
UASB | EGSB | UASB | EGSB | |
Mix condition | Bad | Good | Bad | Good |
Influent COD (mg/L) | 9100 | 12,900 | 1500 | 3283 |
HRT (h) | 8 | 6 | 8 | 6 |
OLR (kg/m3/day) | 22.5 | 27 | 11 | 16 |
COD removal efficiency (%) | 90 | 92 | 95 | 97 |
Biomass attached (g MLSS/g PVA-gel) | 0.93 | 1.02 | 0.25 | 0.83 |
Specific bacteria | Methanosarcina | Methanosaeta | Methanosarcina | Methanosaeta |