Table 1 Summary of operational parameters for acetate-fed anoxic chemostat enrichment reactors.
Parameter | Value |
|---|---|
Influent acetate concentration (mM) | 75 |
Hydraulic/solids retention time (days) | 30 |
pH | 8.0 ± 0.3 |
Total gas production rate (ml/l/day) | 52 ± 20 |
Methane production rate (ml/l/day) | 38 ± 18 |
Methane fraction of headspace (%) | 76 ± 5 |
COD recovery as methane (%) | 80 ± 38 |
Total solids (g/l) | 8.5 ± 0.03 |
Total ammonium nitrogen (g NH4-N/l) | 1.6 ± 0.1 |
Free ammonia (g NH3-N/l) | 0.45 ± 0.03 |
Effluent acetate (mM) | 2.0 ± 0.4 |
