Skip to main content

Significant Improvements in Biofilter Performance for H2S and VOC Removal Using Biotrickling/Bioscrubber Technology in the Aeration Distribution Plenum System

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

Biofilters can handle the removal challenge of a diverse mix of complex odors and VOCs. However, there are significant limitations in handling levels of hydrogen sulfide (H2S) loadings above 10 ppm. High levels of H2S loading in biofilters will create an increase in the acidithiobacillus colony causing an overproduction of acid. This will destroy all other biodegrading microorganisms and fungi in the organic media that feed on the more complex odor compounds. A loss of treatment efficiency, premature media replacement, compaction and channeling of the organic media will occur.

The objective of this pilot study was to mitigate the high H2S problems in biofilters and improve organic media life and removal efficiency by using porous lava rock media instead of typical washed stones. Porous lava rock media has been widely used in biotrickling/bioscrubber applications and has shown high removal efficiency of H2S in the range of 98-99%. The concept was to use the porous lava rock media as the first ecosystem layer for removal of H2S and use as a second ecosystem the organic media for removal of remaining odor compounds and VOCs. This is essentially a two-stage treatment in one cell without additional footprint.

Results of the testing indicate that when high levels of H2S are present the porous lava rock media (stage one) achieved average H2S removal efficiency above 99%. The polishing through the organic media achieved 99.9% removal levels of H2S and non-detectable levels of VOCs and sulfur compounds (stage one and two).

Document Type: Research Article

DOI: https://doi.org/10.2175/193864707787960332

Publication date: 2007-01-01

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 These proceedings are not peer reviewed.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