If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Utilization of Trickling Bed Air Biofilter in the Treatment of VOCs and Odors

$17.50 plus tax (Refund Policy)

Buy Article:


Municipal and industrial wastewater have come under increased regulatory scrutiny as being a source of volatile organic compound (VOC) emissions to the ambient atmosphere. As a result, industrial wastewater treatment facilities have significantly been affected by the Clean Air Act Amendments (CAAA).

Trickling bed air biofilers (TBABs) could be the future technology for removal of VOCs and odors from air streams. They are superior to other treatment options because of cost savings due to unnecessary additional materials added during operation. They have more advantages than traditional biofilter techniques as they overcome the problems generated by utilization of natural media in the bed such as compaction, pH control, nutrients, and humidity. TBABs are considered to be the best treatment option in the case of low pollutant concentration in a high volume air stream.

In this study, TBAB successfully degraded n-hexane used as a model VOC, which is known to be very reluctant to biodegradation. Due to its high hydrophobicity, n-hexane could not be transferred from bulk gas to the biofilm-water layer, where the degradation takes place. This problem was eliminated by changing the conditions of microorganisms' growth within the TBAB bed. Switching to an acidic pH buffer favored the growth of fungi, which enabled capturing n-hexane directly from the gas phase due to its high surface area. The TBAB was successful in degrading n-hexane loading rates as high as 50 g/m3/hr. n-Hexane, being a difficult model contaminant, opens the way for TBABs to deal with a wide variety of carbon-based air pollutants and odors.

Keywords: VOCs; acidic pH; biofiltration; fungi; hydrophilic compounds; hydrophobic compounds; trickle bed air biofilter

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864710802768343

Publication date: January 1, 2010

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.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • ingentaconnect is not responsible for the content or availability of external websites



Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect 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