Bergendahl, John Andrew
Plummer, Jeanine D.
Woodard and Curran
The Billerica, MA Wastewater Treatment Plant uses alum addition with CoMagÂ® treatment for phosphorus removal before discharging to the Concord River. The plant's NPDES permit constrains levels of total phosphorus to 0.2 mg/L and total aluminum to 171 Âµg/L in the summer effluent water.The goal of this project was to determine the optimal parameters of the CoMagÂ® system, while meeting NPDES permit total phosphorus and total aluminum levels.A bench- scale, batch system was developed in the laboratory to simulate the multi-step CoMagÂ® system.The most significant trend, found through bench-scale testing, was that lower sludge recycle concentrations yielded higher total phosphorus and total aluminum removal.
Worcester Polytechnic Institute
Major Qualifying Project
All authors have granted to WPI a nonexclusive royalty-free license to distribute copies of the work, subject to other agreements. Copyright is held by the author or authors, with all rights reserved, unless otherwise noted.
Civil and Environmental Engineering