Effect of double walled carbon nanotubes on a TCE-dechlorinating culture

Sarat Kannepalli, Donna E. Fennell, Weilin Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The effect of double-walled carbon nanotubes (DWNT) on a trichloroethene (TCE)-dechlorinating culture was investigated. The culture dechlorinates TCE to dichloroethene (DCE), vinyl chloride (VC) and ethene, ferments butyrate (the hydrogen donor), and produces methane. We hypothesized that TCE would sorb to DWNT and be unavailable to the dechlorinating bacteria. DWNT, used as obtained from the vendor, were added to culture medium at 0, 27, 133, 400, 800, or 1600 mg/L, amended with TCE, and allowed to equilibrate. The DWNT solutions were inoculated and amended with butyrate. Production of dechlorination products and methane was monitored for 135 days. TCE was dechlorinated by the mixed culture up to the maximum loading of 1.6 g DWNT/L. The rate of dechlorination first increased as the DWNT loading was increased, and then decreased as DWNT loading increased beyond 800 mg/L. Methanogenesis decreased with DWNT loading increase. No methane was produced in cultures with 1600 mg DWNT/L.

Original languageEnglish (US)
Title of host publicationAmerican Chemical Society - 236th National Meeting and Exposition, Abstracts of Scientific Papers
Publication statusPublished - Dec 1 2008
Event236th National Meeting and Exposition of the American Chemical Society, ACS 2008 - Philadelpia, PA, United States
Duration: Aug 17 2008Aug 21 2008

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727

Other

Other236th National Meeting and Exposition of the American Chemical Society, ACS 2008
CountryUnited States
CityPhiladelpia, PA
Period8/17/088/21/08

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Kannepalli, S., Fennell, D. E., & Huang, W. (2008). Effect of double walled carbon nanotubes on a TCE-dechlorinating culture. In American Chemical Society - 236th National Meeting and Exposition, Abstracts of Scientific Papers (ACS National Meeting Book of Abstracts).