Removal of chlorinated and non-chlorinated alkanes in a trickle-bed biofilter
- Oak Ridge National Lab., TN (United States)
Industrial emissions of air contaminated with low levels of volatile organic components (VOCs) continue to be a problem, and the potential for biotreatment of these gases has resulted in an increased interest in this area. This paper describes the use of a trickle-bed reactor seeded with a microbial consortium enriched from a methanotrophic culture. The microbial consortium has been found to degrade chlorinated alkanes in air as the sole carbon source. Degradation rates of alkane mixtures are presented for the trickle-bed as well as results from batch cultures experiments designed to study degradation of various chlorinated and non-chlorinated VOCs. In batch reactors it was found that this particular consortium was capable of degrading straight C2-C5 alkanes as well as 1-chloropentane. The results indicate that chloropentane was degraded with stoichiometric release of chloride ions. It was also shown that the conversion of straight and branched alkanes in a trickle-bed reactor was temperature dependent, indicating a kinetically confined removal efficiency.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 682226
- Report Number(s):
- CONF-980632--
- Country of Publication:
- United States
- Language:
- English
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