Bipolar pulsed electrical discharge for decomposition of organic compounds in water

被引:61
作者
Baroch, P. [1 ]
Anita, V. [1 ,2 ]
Saito, N. [3 ]
Takai, O. [1 ]
机构
[1] Nagoya Univ, EcoTopia Sci Inst, Chikusa Ku, Nagoya, Aichi 4648603, Japan
[2] Alexandru Ioan Cuza Univ, Dept Plasma Phys Opt & Struct Matter, Iasi 700506, Romania
[3] Nagoya Univ, Grad Sch Engn, Dept Mol Design & Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan
关键词
pulsed electrical discharge; thermal plasma; optical emission spectroscopy; water treatment; organic dye decomposition;
D O I
10.1016/j.elstat.2008.01.010
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This work focuses on the development of an underwater plasma source that may open new possibilities in wastewater treatment processes by enabling the operation of the discharge under relatively low discharge voltages (sub-kV region). For this purpose, two systems, based on a wire-to-wire electrode configuration: (i) with and (ii) without gas bubbling, were designed. Both systems were operated utilizing a high-frequency bipolar DC pulse power supply. Properties of generated plasma were investigated by electrical and optical emission spectroscopy methods. Subsequently, determination of generation of active species and preliminary tests on the decomposition of organic dye in aqueous solution were carried out. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:294 / 299
页数:6
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