Skip to main content

Introducing a New Media for Fixed-Film Treatment in Decentralized Wastewater Systems

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

Both naturally occurring and artificial media have been used to treat wastewater in small community settings. Systems using naturally occurring media include sand filters and peat-based biofilters. Artificial media include open cell foam, textiles, and plastics. All the above operate as fixed-film systems, in that attached growth microorganisms are encouraged to colonize and reproduce in the media. Fixed film systems appear to produce a more consistent effluent under peaked sewage inputs and periods of no use (vacation homes, weekend retreats) compared to suspended growth systems in this flow range. Naturally occurring media have advantages in that naturally occurring fauna and flora may already be present in the media. Start up is therefore shortened because colonists are already present in the media and just need to multiply to handle the waste renovation process. A disadvantage of naturally occurring media is that they must be mined. Extraction of these natural resources is sometimes criticized because they formed over thousands of years. They will eventually be exhausted and will not be replaced. Quanics. Inc. has patented a product that combines advantages of both artificial and naturally occurring media. The Bio-COIR™ filter uses coir, the recycled husks of coconut in a biological fixed film filter. The material is a waste product of agricultural operations in developing countries. The product has successfully passed NSF Standard 40 certification. Systems in the ground for two years show virtually no change in media properties except a slightly darker color, giving the expectation that the media will continue to function for a comparable period to peat (8 to 16 years between media replacement).
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Publication date: 01 January 2006

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 These proceedings are not peer reviewed.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