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Control of trichloroethylene emissions from sparging systems by horizontal bio- and chemo-barriers
Date
2005-02-01
Author
Tezel, U
Demirer, Göksel Niyazi
Uludag-Demirer, S
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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The scope of this study was to develop a continuous system to clean-up a trichloroethylene (TCE) contaminated gas stream, where biotic and abiotic removal mechanisms are undertaken sequentially simulating the horizontal bio- and chemo-barriers proposed for the in-situ remediation of the contaminated sites. The bio- and chemo-barriers were simulated by using glass columns packed with granular anaerobic mixed culture and Fe(0) filings, respectively. The effect of gas residence time, which is adjusted by the gas flowrate, on the TCE removal efficiency of the reactor system was investigated. TCE removal efficiency of over 90% was achieved at gas residence times above 1hr. Furthermore, the effluent of reactor system contained only ethane and ethylene, which are non-toxic by-products of TCE reduction reactions, along with trace amounts of TCE.
Subject Keywords
Waste Management and Disposal
,
Water Science and Technology
,
Environmental Chemistry
,
General Medicine
URI
https://hdl.handle.net/11511/56794
Journal
ENVIRONMENTAL TECHNOLOGY
DOI
https://doi.org/10.1080/09593332608618571
Collections
Department of Environmental Engineering, Article