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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472 EISSN: 1735-1472
Vol. 10, No. 6, 2013, pp. 1377-1382
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Bioline Code: st13134
Full paper language: English
Document type: Short Communication
Document available free of charge
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International Journal of Environment Science and Technology, Vol. 10, No. 6, 2013, pp. 1377-1382
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Comparison of styrene removal in air by positive and negative DC corona discharges
Zhang, X.; Feng, W.; Yu, Z.; Li, S.; Zhu, J. & Yan, K.
Abstract
This communication discusses styrene removal
in air by positive and negative DC corona discharges.
Experiments were performed with a wire-plate reactor and
under a gas flow rate of 305 m
3
/h. In terms of averaged
applied voltage and corona current, it is observed that the
maximum negative corona current is always at least two
times larger than the positive one at the same voltage level.
At the same corona discharge energy density, however, the
positive corona discharge produces around 2-6 times more
ozone in comparison with the negative corona. For styrene
removal, the positive corona processing is also around 2-6
times more effective than the negative corona. Humidity,
an important and variable component of ambient air,
affects the positive corona processing significantly. But it
exerts a moderate effect on the negative corona. The differences between positive corona and negative corona
discharges are attributed to their different discharge
properties.
Keywords
Corona discharge; Non-thermal plasma; Styrene; VOCs
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