Skip to main content

Energy Efficient Advanced Treatment Process for Microconstituents Removal

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

The objective of this study was to demonstrate the effectiveness of an advanced treatment process not utilizing reverse osmosis (RO) for removal of hormones, pharmaceuticals, and flame retardants (collectively termed microconstituents or chemicals of emerging concern [CECs]) from municipal effluent. The advanced treatment process consisted of (in the order of use): membrane filtration (MF), ozonation (O3), and biological activated carbon (BAC). The 15- month, continuous flow, 10.7 gpm, MF-O3-BAC demonstration study was conducted in two phases at the Reno-Stead Water Reclamation Facility (RSWRF): Phase 1 focused on ozone process optimization and bromate mitigation; Phase 2 was a 10-month steady-state demonstration of process performance. For RSWRF effluent, an ozone dosage of at least 5 mg/L was needed for desired CEC removals. Peroxide (year-round) and ammonia (seasonal) were added to mitigate bromate formation during ozonation. BAC removed flame retardants, and ozonation byproducts including NDMA (N-Nitrosodimethylamine), aldehydes, and biodegradable organic carbon. Findings of this study imply that MF-O3-BAC treatment is equally effective as RO-based treatment for CEC removals, but with substantially less energy utilization.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: AOP; BAC; Bromate; CECs; Emerging Contaminants; Flame Retardants; Hormones; NDMA; Ozonation Byproducts; Ozone; Pharmaceuticals

Document Type: Research Article

Publication date: 2010-01-01

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 These proceedings are not peer reviewed.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
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