Skip to main content

A Novel Application of Enricher Reactor - Permeable Reactive Biobarrier for Removing a Mixture of Contaminants with Substrate Interactions

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial


Enricher reactor (ER) - permeable reactive biobarrier (PRBB) was developed to address performance loss of a PRBB due to substrate interactions among a mixture of benzene, toluene, ethylbenzene, and xylene (BTEX) in groundwater, when the mixture reappeared after a 10-day absence period. Effect of ethanol, a common additive to gasoline, during the BTEX absence period on the substrate interactions among BTEX was investigated. Toluene and BTEX as an inducer in ER were compared to investigate toluene as a potential single inducer in ER. Augmentation of degraders from ERs greatly reduced the influence of substrate interactions and recovered the removal performances of PRBBs in relatively short time periods. PRBBs that did not receive ER supply experienced the most performance losses ranging from 11% to 35% for PRBBs initially inoculated with toluene degraders and 22% to 33% for PRBBs initially inoculated with BTEX degraders. Bacterial community of degraders enriched on toluene greatly differed from that of degraders enriched on BTEX. However, PRBBs augmented with degraders enriched on toluene not only overcame the inhibition interaction between benzene and toluene but also showed superior removal performances for toluene, which indicated that toluene can be used as a single inducer in an ER.

Document Type: Research Article


Publication date: 2012-01-01

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 These proceedings are not peer reviewed.

    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
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free ContentFree content
  • Partial Free ContentPartial Free content
  • New ContentNew content
  • Open Access ContentOpen access content
  • Partial Open Access ContentPartial Open access content
  • Subscribed ContentSubscribed content
  • Partial Subscribed ContentPartial Subscribed content
  • Free Trial ContentFree 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