The Billerica, MA Wastewater Treatment Plant uses alum addition with CoMag 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 µg/L in the summer effluent water.The goal of this project was to determine the optimal parameters of the CoMag® 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 CoMag system.The most significant trend, found through bench-scale testing, was that lower sludge recycle concentrations yielded higher total phosphorus and total aluminum removal.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Rhinehart, Maya Elzbieta
• Dery, Melissa Elizabeth
• Johnson, Zachary Leonard
• Gerlach, Kyle Thomas

Contributors

• Kathryn, Roosa
• Paul, Dombrowski

Publisher

• Worcester Polytechnic Institute

Identifier

• E-project-030315-155121

Award

• Provost's MQP Award

Advisor

• Bergendahl, John Andrew
• Plummer, Jeanine D.

Year

• 2015

Sponsor

• Woodard and Curran

Date created

• 2015-03-03

Location

• Billerica

Resource type

• Major Qualifying Project

Major

• Chemical Engineering
• Civil Engineering
• Environmental Engineering

Rights statement

• In Copyright

Last modified

• 2023-01-20