title: Evaluation of the formation of oxidants and by-products using Pt/Ti, RuO2/Ti, and IrO2/Ti electrodes in the electrochemical process.
abstract: The aim of this study was to evaluate the formation of oxidants and by-products by using different electrode materials, such as Pt/Ti, RuO2/Ti, and IrO2/Ti, in the electrochemical process. The harmful by-products ClO3- and ClO4- were formed during the electrolysis of a Cl- electrolyte solution, as well as active chlorine, which is the most common water disinfectant. With regard to drinking water treatment, the most efficient electrode was defined as that leading to a higher formation of active chlorine and a lower formation of hazardous by-products. Overall, it was found that the Pt/Ti electrode should not be used for drinking water treatment applications, while the IrO2/Ti and RuO2/Ti electrodes are ideal for use.
authors.affiliation: a Department of Environmental Engineering , Yonsei University , Heungeop-myeon, Wonju-si , Gangwon-do 220-710 , Republic of Korea.
authors.forename: Yeojoon
authors.initials: Y
authors.lastname: Yoon
authors.forename: Eunha
authors.initials: E
authors.lastname: Cho
authors.forename: Youmi
authors.initials: Y
authors.lastname: Jung
authors.forename: Minhwan
authors.initials: M
authors.lastname: Kwon
authors.forename: Jaekyung
authors.initials: J
authors.lastname: Yoon
authors.forename: Joon-Wun
authors.initials: JW
authors.lastname: Kang
mesh_terms: D002713:Chlorine / Q000737:chemistry / Q000302:isolation & purification*; D004563:Electrochemistry / Q000295:instrumentation / Q000379:methods; D004566:Electrodes; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007495:Iridium / Q000737:chemistry*; D008422:Materials Testing; D016877:Oxidants / Q000138:chemical synthesis; D010084:Oxidation-Reduction; D010984:Platinum / Q000737:chemistry*; D017975:Ruthenium Compounds / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*; D018508:Water Purification / Q000295:instrumentation
chemical_list: D016877:Oxidants; D017975:Ruthenium Compounds; C044458:iridium oxide; D007495:Iridium; D010984:Platinum; D002713:Chlorine; C027646:ruthenium tetraoxide; D014025:Titanium
keywords: active chlorine; chlorate; electrochemical; electrode material; perchlorate