Nov. 20, 2013

Tour of the Southwest Philadelphia Water Pollution Control Plant 

The Southwest Water Pollution Control Plant is one of three waste water treatment facilities in the Philadelphia Water Department system and serves the western portions of Philadelphia and areas in eastern Delaware and southeastern Montgomery counties.

The Southwest plant was designed to handle an average annual flow of 200 MGD and a peak flow of 400 MGD. In Fiscal Year 2012, the plant treated an average of 183 MGD. The facility operates under a National Pollution Discharge Elimination System (NPDES) permit mandated by the PA-DEP and plant performance is well within permit limits with effluent concentrations consistently below 10 mg/l for CBOD and TSS.

The plant liquid stream processes include influent pumping, screening, grit removal, pre-aeration/flocculation, primary clarification, secondary treatment using pure oxygen activated sludge, secondary clarification, effluent pumping, and disinfection.

Sludge collected from the secondary treatment process is thickened in Dissolved Air Floatation Tanks and then combined with the Primary sludge. The combined sludge is anaerobically digested at a minimum temperature of 95oF and pumped to an adjacent facility, operated by Philadelphia Renewable Biofuels, for further processing. They dewater the biosolids in centrifuges and the generated cake is fed to one of two sludge dryers which produce a Class A pellet that can be used as a fertilizer or potentially as a fuel.

Date: Wednesday November 20, 2013
Time: Meet and Greet: 5:30-6:00 PM Facility Tour: 6:00-7:00 PM Buffet Dinner at Site: 7:00-8:30 PM
Location: Southwest Philadelphia Water Pollution Control Plant PWD-SWWPCP 8200 Enterprise Avenue Philadelphia, PA 19153 215-685-4015 (office phone)Most of the tour is walking (weather dependent) so please wear comfortable shoes, and jackets if it is cooler.  Park in the main parking lot just off of Enterprise Avenue and enter through the iron pedestrian gate, and then into the Administration Building.
Buffet Menu: Top Round of Beef Barbeque Pulled Pork Stuffed Shells Rice Pilaf Sauteed Veggie Medley Tossed Green Salad Rolls, Butter Assorted Mini Desserts Drinks (Soda/Water)
Cost: DVS Members: $30 Non-members and guests: $40 Young Non-members (35 and under): $40 including one year DVS membership Students: $20
Reservation Deadline: Sign up early since attendance is limited to 22…..last day to sign up (or cancel) will be Tuesday November 19.
Registration Details: For questions, please contact Sidney Biddle or 215-901-3050.