TABLE 1.
Main chemical composition of the brewery wastewater on which the granular sludge was grown
| Parameterb | Influent
|
Effluent
|
||
|---|---|---|---|---|
| Range | Median | Range | Median | |
| Total COD (mg/liter) | 300–5,400 | 2,550 | 300–1,510 | 756 |
| Soluble COD (mg/liter) | 245–4,900 | 2,300 | 100–1,042 | 490 |
| Ethanol (mg/liter) | 200–1,800 | 850 | nda | nd |
| VFA (meq/liter) | 0.1–24 | 13 | 0–12.6 | 1.6 |
| TK-N (mg/liter) | 9–137 | 48 | 14–276 | 44 |
| NH4+-N (mg/liter) | 1.2–59 | 8 | 5–87 | 10 |
| PO43− (mg/liter) | 7.1–45 | 30 | 7–45 | 30 |
| SO42− (mg/liter) | 0–120 | 5.5 | 0–120 | 5.5 |
| SS (mg/liter) | 10–1,013 | 190 | 0–4,770 | 255 |
| Alkalinity (meq/liter) | 0–25 | 5.4 | 9.7–35.5 | 22 |
| pH | 5.6–6.8 | 6.1 | 6.3–7.9 | 6.7 |
| Temp (°C) | 18–35 | 30.5 | ||
a
nd, not detected.
b
TK-N, total Kjeldahl nitrogen; SS, suspended solids.