Table 1. Details of the waterworks studied.
| Waterworks | Capacitya | Treatment Process | Additional Informationa |
|---|---|---|---|
| W-A | 1.0 Million ton | Influent (source) | Raw Water From Taihu Lake |
| Pre-Oxidation | Ozonation: 0.6 mg/L | ||
| Gas Water Ratio: 0.6–0.8: 1 | |||
| Contact Time: 10 minutes | |||
| Biodegradation | Biological Aerated Filter | ||
| Working Depth = 2.0 m | |||
| Gas Water Ratio: 0.6–0.8: 1 | |||
| Chlorination | Residual Chlorine 0.05 mg/L | ||
| Influent | Pipeline length: 21 km | ||
| Pipeline Retention Time: 6–7 h | |||
| Coagulation and | Aluminium Oxide: 30 mg/L | ||
| Sedimentation | Contact Time: 3–4 h | ||
| Sand Filtration | Quartz Sand: Pore Size 0.75 mm H = 70 cm | ||
| Flow Rate: 5 ~ 6 m/h | |||
| Ozonation | Ozonation: 0.8 mg/L | ||
| Contact Time: 10–15 min | |||
| Activated Carbon filtration | Granular Activated Carbon: d = 1.5 mm; H = 2.1 m, S = 0.5 × 0.5 m | ||
| Membrane Filtration | Polyvinylidene Fluoride(PVDF) Member: 0.45 μm | ||
| Finished Water | Residual Chlorine 0.8 mg/L | ||
| Retention Time 3 h | |||
| W-B | 0.5 Million ton | Influent(source) | Raw Water From Taihu Lake |
| Coagulation and | Aluminium Oxide: 50 mg/L | ||
| Sedimentation | Contact Time: 2 h | ||
| Influent | Pipeline length: 38 km | ||
| Pipeline Retention Time: 12–15 h | |||
| Sand Filtration | Quartz Sand: Pore Size 0.75 mm H = 70 cm | ||
| Flow Rate: 5 ~ 6 m/h | |||
| Finished Water | Residual Chlorine 0.4–0.6 mg/L | ||
| Retention Time 2–3 h |
adesign values.