Citation: Bin YANG, Le Cheng LEI, Ming Hua ZHOU. Effects of the Liquid Conductivity on Pulsed High-voltage Discharge Modes in Water[J]. Chinese Chemical Letters, ;2004, 15(10): 1215-1218. shu

Effects of the Liquid Conductivity on Pulsed High-voltage Discharge Modes in Water

Institute of Environmental Engineering, Zhejiang University, Hangzhou 310027

Received Date: 17 September 2003

Fund Project: This work was supported by Distinguished Youth Fund of Zhejiang Province (RC02060) and NSFC (20336030).

Spark, stream and corona pulsed high-voltage discharges in water induced by the various initial conductivities have been examined in this paper. The discharge modes changed from spark to corona discharge with the liquid conductivity increasing. The apparent production of OH radical and quantum yield generated by spark discharge in distilled water were 11.57 μmol/L and 0.0978photon/s, respectively. A preliminary study on acid fuchsine (AF) treatment indicated that higher AF removal efficiency has been achieved by spark discharge. The process of degradation showed that the oxidative effects through OH radical oxidation did not play an important role and did increase with the discharge mode changing to spark discharge.
- Pulsed high-voltage discharge,
- spark discharge,
- corona discharge,
- quantum yields
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