EPWPCOA hosted our September meeting on the 15th at the Upper Moreland-Hatboro Joint Sewer Authority facility in Willow Grove, PA. The hot, sunny day kicked off with tours of the newly-upgraded and improved treatment plant and an exhibit with all of our wonderful vendors.
The Upper Moreland-Hatboro Joint Sewer Authority (UMHJSA) is an advanced biological treatment system that recently installed a Schwing Screw Press for dewatering sludge prior to thermally treating it in a 5-hearth incinerator. The orginal plant was constructed in 1931 and the main plant was constructed in 1954. followed by expansion in 1974, and upgraded in 1989 to a single-stage nitrification facility rated at 6.416 million gallons per day (MGD). The total plant is rated at 7.189 MGD. UMHJSA currently serves an equivalent population of around 65,000 people (over 10,000 customers). UMHJSA services the Borough of Hatboro and Upper Moreland Township as well as portions of Horsham, Upper Dublin, Warminster Townships and Bryn Athyn Borough.
The upgraded plant features a new screw press, which has increased sludge cake solids prior to onsite incineration from roughly 16% to 25%, ultimately improving the process and reducing gas consumption. The plant also includes upgraded Trojan UV disinfection system, new PLC-controlled, energy-efficient blowers, VFDs on key monitors, effluent pump station for flooding conditions, emergency generator and a PAC chemical feed system to address phosphorous removal. Also, their recent LED lighting upgrades have improved operator safety and is projected to save over $14,000/year in electricity and has qualified UMHJSA to receive PECO Smart Ideas incentive funds. Great job, UMHJSA!
Future plans for the plant include upgrading headworks/grit channel and improving odor control, which will involve removal of three (3) wet-scrubber towers and odor treatment through thermal oxidation or in aeration tanks.
We also had some great presentations at the mini-training sessions throughout the day, including one by Eric Wanstrom of Schwing Bioset and Ed Zalewski of Sherwood Logan on the Schwing screw press sludge-dewatering system. Energy Savings ideas were also discussed by PECO Smart Ideas. The presentation of the day was given by Eric Lindhult of UMHJSA, which focused on re-evaluating plant operations and finding changes in practices to save money on natural gas and electric costs. Thanks to all of you!
Following the exhibit, tours, and training sessions, the entire crew traveled down the road for the Business Meeting and a feast at the beautiful Huntingdon Valley Country Club.
A special thanks to Kappe Associates, our mailing sponsors, Environmental Engineering & Management Associates, Inc. for sponsoring the continental breakfast, and Schwing Bioset and Sherwood Logan & Associates for sponsoring lunch.