title: Alternative Electrode Materials and Ceramic Filter Minimize Disinfection Byproducts in Point-of-Use Electrochemical Water Treatment.
abstract: Effects of various electrodes and prefiltration to minimize disinfection byproducts (DBPs) in electrochemical water disinfection was evaluated. The target microorganism,Escherichia coliO157:H7, was effectively inactivated even applying a solar-charged storage battery for the electrolysis process. Extent of microbial inactivation decreased with lower water temperature and higher pH in the free chlorine disinfection system. The RuO2/Ti electrode was most efficient because it produced the lowest concentration of chlorate and the highest generation of free chlorine. Prefiltration using a ceramic filter inhibited formation of halogenated DBPs because it removed precursors of DBPs. For safe point-of-use water treatment, the use of a hybrid prefiltration stage with the electrolysis system is strongly recommended to reduce risks from DBPs. The system is particularly suited to use in developing regions.
authors.affiliation: Department of Environmental Engineering, Yonsei University , Wonju, Republic of Korea.
authors.forename: Yeojoon
authors.initials: Y
authors.lastname: Yoon
authors.affiliation: Department of Environmental Engineering, Yonsei University , Wonju, Republic of Korea.
authors.forename: Youmi
authors.initials: Y
authors.lastname: Jung
authors.affiliation: Department of Environmental Engineering, Yonsei University , Wonju, Republic of Korea.
authors.forename: Minhwan
authors.initials: M
authors.lastname: Kwon
authors.affiliation: Department of Environmental Engineering, Yonsei University , Wonju, Republic of Korea.
authors.forename: Eunha
authors.initials: E
authors.lastname: Cho
authors.affiliation: Department of Environmental Engineering, Yonsei University , Wonju, Republic of Korea.
authors.forename: Joon-Wun
authors.initials: JW
authors.lastname: Kang
keywords: HAAs; THMs; ceramic filter; chlorate; disinfection; electrolysis