Skip to main content

Maximizing Nutrient Removal in an Existing SBR With a Full-Scale BioMag Demonstration

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

The 1.1-million-gallon-per-day (mgd) city of Taneytown (Maryland) wastewater treatment plant (WWTP) consists of two sequencing batch reactors (SBRs). The city intends to upgrade the existing plant by incorporating BioMag, by Cambridge Water Technology, to provide enhanced nutrient removal (ENR). A full-scale trial of the BioMag system was conducted in 2010, representing its first application to an SBR. BioMag is an enhanced biological wastewater treatment process that uses magnetite, an inert iron ore (Fe3O4), to increase the specific gravity of biological floc, to increase settling rates. This application demonstrated stable, high-level treatment throughout a wide range of influent concentrations. Effluent total nitrogen and total phosphorus concentrations averaged 1.2 milligrams per liter (mg/L) and 0.11 mg/L, respectively. Key components of this application are the ability to increase mixed liquor suspended solids concentrations and appreciably reduce the duration of the settle phase, increasing aerobic and/or anoxic react phase durations.

Keywords: BioMag; Sequencing batch reactor; activated sludge; enhanced nutrient removal; mixing; polymer; retrofit

Document Type: Research Article

DOI: https://doi.org/10.2175/193864711802721893

Publication date: 2011-01-01

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more