Size (Peak day design capacity, gallons per day) - 10,000,001 - 50,000,000 | 25 |
Pretreatment - Influent pumping | 2 |
Pretreatment - Flow equalization basin | 1 |
Pretreatment - Mechanically cleaned screens | 2 |
Pretreatment - Fine screens, including microscreens | 3 |
Pretreatment - Comminutor, barminutor, grinders | 2 |
Pretreatment - Grit removal | 2 |
Secondary Treatment - Activated sludge: Sequencing batch reactor (SBR), intermittent cycle extended aeration system (ICEAS), or other batch treatment method | 20 |
In-plant Odor Control - Adsorption with activated carbon or equal adsorbent | 3 |
In-plant Odor Control - Odor-reducing sprays | 2 |
Sludge Thickening and Dewatering - Gravity belt thickener | 4 |
Sludge Stabilization and Conditioning - Heated anaerobic digestion | 10 |
Disinfection - Ultraviolet light | 3 |
Effluent Discharge - Plant pumping of effluent | 2 |