Size (Peak day design capacity, gallons per day) - 500,001 - 1,000,000 | 12 |
Pretreatment - Influent pumping | 2 |
Pretreatment - Flow equalization basin | 1 |
Pretreatment - Mechanically cleaned screens | 2 |
Pretreatment - Comminutor, barminutor, grinders | 2 |
Pretreatment - Grit removal | 2 |
Secondary Treatment - Activated sludge: Diffused or dispersed aeration | 10 |
Advanced Waste Treatment - Membrane filtration | 8 |
Advanced Waste Treatment - pH adjustment | 3 |
Sludge Thickening and Dewatering - Belt filter press, plate-and-frame press, or vacuum filter | 8 |
Solids Disposal - Off-site disposal | 1 |
Disinfection - Ultraviolet light | 3 |