J Korean Soc Environ Eng. 2016; 38(6): 291-298.
Published online 2016 June 30.
The Effect of Pre-Treatment Methods for the Life Time of the Insoluble Electrodes
1Wookyoung Electrolysis System Co.
2Department of Environmental Engineering, Changwon National University
3Department of Environmental Engineering, Andong National University
4Gyeongsangnam-do Institute of Health and Environment
Received 2015 November 26; Accepted 2016 April 11.
ABSTRACT
Electrochemical water treatment process as a useful treatment method for the removal of non-degradable matter has been consistently studied for several decades. Key process of electrochemical water treatment are oxidation reaction from an anode and reduction from a cathode. In this study, the effect of pre-treatment methods in the insoluble electrode manufacturing process for the water treatment has been evaluated for the life time of electrode The results of this study showed that pre-treatment methods of a base metal such as surface roughness, clean method and interlayer formation influenced to life time of electrode when the same condition (catalyst electrode layer coating method and material system) was applied for pre-treatment methods. This study was conducted by using IrO2/Ti electrode In the test of sand-blasting process, an electrode manufactured by using sanding media of different sizes resulted in the most effective electrode life time when the size of alumina was used for 212~180 μm praticle size (#80). The most effective method was considered using arc plasma in the additional roughness control and cleaning process, sputtering method to form Ta type interlayer formation process.
Keywords :
Life Time, Catalyst Layer, Roughness, Interlayer, Sand-Blasting
