Water disinfection and control strategy of disinfection by-products in electrochemical process

Yeon Jung Jung, Ko Woon Baek, Sang Yeon Park, Byung Soo Oh, Albert Kang, Joon Wun Kang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The aim of this study was to investigate the performance of an electrochemical process as an alternative disinfection/oxidation strategy for water treatment, as several oxidants can be simultaneously formed during the process. Studies on electrochemical processes have shown the production of free chlorine, as well as smaller amounts of stronger oxidants, such as ozone, hydrogen peroxide and OH radicals (OH). The key reactive species formed during electrolysis were successfully isolated and detected, employing specifically devised analytical set-ups, which enable the detection of time varied residual oxidants using an on-line real time monitoring scheme. With the use Bacillus subtilis spores, which are used as a biological surrogate of Cryptosporidium oocysts, the inactivation efficiency of an electrochemical method was evaluated. A much improved inactivation rate was observed for Bacillus subtilis spores during the electrochemical process compared to the commonly used disinfection practice, chlorination. Additionally, the formation characteristics of DBPs during electrolysis was studied by monitoring inorganic by-products, such as bromate (BrO3) and chlorate (ClO3).

Original languageEnglish
Title of host publicationAmerican Water Works Association - Water Quality Technology Conference and Exposition 2006
Subtitle of host publicationTaking Water Quality to New Heights
Pages70-80
Number of pages11
Publication statusPublished - 2006 Dec 1
EventWater Quality Technology Conference and Exposition 2006: Taking Water Quality to New Heights - Denver, CO, United States
Duration: 2006 Nov 52006 Nov 9

Publication series

NameAmerican Water Works Association - Water Quality Technology Conference and Exposition 2006: Taking Water Quality to New Heights

Other

OtherWater Quality Technology Conference and Exposition 2006: Taking Water Quality to New Heights
CountryUnited States
CityDenver, CO
Period06/11/506/11/9

All Science Journal Classification (ASJC) codes

  • Safety, Risk, Reliability and Quality
  • Water Science and Technology
  • Geography, Planning and Development

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  • Cite this

    Jung, Y. J., Baek, K. W., Park, S. Y., Oh, B. S., Kang, A., & Kang, J. W. (2006). Water disinfection and control strategy of disinfection by-products in electrochemical process. In American Water Works Association - Water Quality Technology Conference and Exposition 2006: Taking Water Quality to New Heights (pp. 70-80). (American Water Works Association - Water Quality Technology Conference and Exposition 2006: Taking Water Quality to New Heights).