期刊
JOURNAL OF ELECTROSTATICS
卷 67, 期 1, 页码 62-66出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.elstat.2008.11.003
关键词
Pulsed discharge; Pinhole; Active species; Methyl orange; Decoloration
资金
- National Nature Science Foundation of China [NSFC-20577004]
Various active chemical species such as hydroxyl radicals, oxygen radical, hydrogen peroxide and ozone etc. can be produced by pulsed discharge. These active species can remove organic pollutants from the aqueous phase effectively. In present work pulsed discharge was formed on the pinhole of an insulating plate which was inserted between two plate electrodes. The characteristic of methyl orange decoloration by the discharge was investigated. The results of experimentation showed that peak voltage, pulsed frequency, initial solution conductivity and gas species impact the decoloration rate of the methyl orange (MO) significantly. The decoloration rate of MO solution is increased with increasing of the peak voltage, pulsed frequency, and decreasing initial solution conductivity. When the MO solution was treated with different gases bubbling, different decoloration rate was obtained and the order of decoloration rate is: oxygen > air > nitrogen. (C) 2008 Elsevier B.V. All rights reserved.
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