Skip to main content

PERFORMANCE ANALYSIS OF RECIRCULATING BIOLOGICAL FILTERS FOR SAMLL-SCALE APPLICATIONS: FILTER PROPERTIES AND OPERATION

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

Recirculating sand filters (RSFs) were studied as an option for treating decentralized or clusterbased wastewater. This study examined RSF performance using two filter media (Crushed glass and sand), two hydraulic loading rates (HLRs) (3-5 gpd/ft2 per day and 10-15 gpd/ft2 per day), two recycle ratios (1:3-1:5 with HLR of 3-5 gpd/ft2 per day, 1:1-1:2 with HLR of 10-15 gpd/ft2 per day), and two dosing frequencies (48 times per day, and 96 times per day). The domestic wastewater influent, from Mill Cove Wastewater Treatment Plant (Bedford, NS, Canada), served as the feed water in the bench-scale experiments described herein. In general, crushed glass demonstrated similar performance as conventional silica sand under a range of operational characteristic. In particular, at high dose frequencies the average effluent BOD from the sand filter was 4.8 mg/L, and the average BOD from the crushed glass filter was 8.5 mg/L. Similar performance data was obtained for TSS, NH4 +N, TN, and Fecal Coliform (F.C). The NH4 +-N values in the filter effluents were less than 1 mg.l−1 on average, which meant NH4 +-N supplication was a possible limiting factor for biomass growth. These results indicate that crushed glass has the potential to replace sand as a biofilter medium, which could be an important secondary market for recycled glass or for geographic regions where sand is not readily available.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 2004-01-01

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 These proceedings are not peer reviewed.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