Non-thermal Plasma Abatement Of Trichloroethylene With DC Corona Discharges

The decomposition of trichloroethylene (TCE) in air by non-thermal plasma was investigated with a multi-pin-to-plate direct current (DC) discharge at atmospheric pressure and room temperature. The effects of various operating parameters on the removal efficiency (RE) were examined. The experiments i...

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Bibliographic Details
Published in:WIT Transactions on Ecology and the Environment 2011-01, Vol.147, p.353
Main Authors: Vandenbroucke, A M, Vanderstricht, A, Nguyen Dinh, M T, J.-M. Giraudon, Morent, R, De Geyter, N, J.-F. Lamonier, Leys, C
Format: Article
Language:English
Subjects:
Byproducts
Carbon dioxide
Chloral
Direct current
Discharge
Humidity
Infrared spectroscopy
Mass spectrometry
Mass spectroscopy
Phosgene
Positive corona
Relative humidity
Solvents
Thermal plasmas
Trichloroethene
Trichloroethylene
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Summary:The decomposition of trichloroethylene (TCE) in air by non-thermal plasma was investigated with a multi-pin-to-plate direct current (DC) discharge at atmospheric pressure and room temperature. The effects of various operating parameters on the removal efficiency (RE) were examined. The experiments indicated that for low energy densities higher removal could be obtained with positive corona. For negative corona and 10% relative humidity (RH) a maximum RE of 99.5% could be achieved at 1100 J L-1. Formation of byproducts was qualitatively analyzed in detail with FT-IR spectroscopy and mass spectrometry. Detected by-products for negative corona operated at 300 J L-1 and 10% RH include dichloroacetylchloride, trichloroacetaldehyde, phosgene, ozone, HCl, Cl2, CO and CO2. The highest RE for TCE was achieved with a relative humidity of 19%.
ISSN:1746-448X
1743-3541
DOI:10.2495/AIR110331