Sewage Treatment Plant
Conventional activated sludge treatment, with primary and secondary clarification and chemical phosphorous removal.
| Population serviced: | 320,000 |
| Average daily flow: | 42 MIGD (190 MLD) |
| Sludge production: | 50 t/day |
Application
| Equipment: | Simon-Ashbrook-Hartley 2 m belt press |
| Old Mixer: | Venturi (flapper valve) |
| New mixer: | 6” OPTIFLOC™ |
| Flow: | 70 – 130 IGPM (5.3-10 L/s) |
| Sludge type: | Raw primary and secondary |
| Composition: | 50-60% primary 40-50% secondary |
| Waste paper: | 0-10% |
| Conditioner: | Allied Colloids, dry, cationic Secodyne, mannich |
Belt Filter Press
Belt Filter Press Performance
| Venturi | Optifloc™ | Improvement | |
|---|---|---|---|
| Feed TS (%) | 3.3 | 3.3 | |
| Cake TS (%) | 20.9 | 19.9 | 5% |
| Pressate TSS(mg/L) | 2909 | 1309 | 55% |
| Dosage(kg/t) | 5.0 | 3.2 | 35% |
Comparison of dosage requirement with conventional (Venturi) mixing and OPTIFLOC™