Skip to main content

Footprints and Capital Costs Reduction for Onsite Wastewater Treatment Systems - a Novel Dual Media Recirculating Biofilters

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

The purpose of this study was to develop a dual media filter bed design for recirculating biofilters (RBFs) for achieving high level treatment to meet the strict wastewater discharge regulations. Five types of filter media were applied in the bench scale RBFs, including two single media (crushed glass or CG, geotextile or GT), and three dual media with CG and GT at different volume ratios (3CG:1GT, 2CG:2GT, and 1CG:3GT). These five types of RBFs were dosed with both low and high hydraulic loading rates (HLR) of 0.20 and 0.80m3 /m2/day, respectively. The effluent parameters including BOD5, NH4 +-N, NO3-N, TN, TSS, pH, and fecal coliform were measured and statistically analyzed.

The results showed that the dual media RBF of 3CG:1GT dosed with both low and high hydraulic loading rates (HLRs) provided the highest removal for BOD and TSS amongst six dual media RBFs in this study. More importantly, the dual media RBF of 3CG:1GT dosed with the high HLR produced effluents with BOD concentrations even lower than the CG biofilter dosed with a low HLR. However, three clogging occurrences were observed for the CG biofilter dosed with the high HLR during the experimental period, while no clogging problem was found for all the dual media RBFs. This conclusion indicated that the dual media RBF of 3CG:1GT could decrease the footprints for RBFs significantly since HLRs and daily flow rates determine the size of filter beds.
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: CRUSHED GLASS; DUAL MEDIA RECIRCULATING BIOFILTERS; GEOTEXTILE

Document Type: Research Article

Publication date: 13 October 2007

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 These proceedings are not peer reviewed.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