Alternative electrode materials and ceramic filter minimize disinfection byproducts in point-of-use electrochemical water treatment

Yeojoon Yoon, Youmi Jung, Minhwan Kwon, Eunha Cho, Joon Wun Kang

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Effects of various electrodes and prefiltration to minimize disinfection byproducts (DBPs) in electrochemical water disinfection was evaluated. The target microorganism, Escherichia coli O157: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.

Original languageEnglish
Pages (from-to)742-749
Number of pages8
JournalEnvironmental Engineering Science
Volume30
Issue number12
DOIs
Publication statusPublished - 2013 Jan 1

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All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution

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