Electrochemical disinfection of drinking water using an activated-carbon-fiber reactor capable of monitoring its microbial fouling

M. Okochi, T. K. Lim, N. Nakamura, Tadashi Matsunaga

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

An electrochemical reactor employing activated carbon fibers (ACF) was constructed for the disinfection of bacteria in drinking water. The application of an alternating potential of 1.0 V and -0.8 V versus a saturated calomel electrode, for disinfecting and desorbing bacteria, enabled reactor operation for 840 h. Drinking water was passed through the reactor in stop/flow mode: 300 ml/min flow for 12 h and no flow for 12 h, alternately. The bacterial cell density in treated water was always been less than 20 cells/ml. It was also found that the formation of biofilm on the ACF reactor caused an increase in current, enabling the self-detection of microbial fouling.

Original languageEnglish
Pages (from-to)18-22
Number of pages5
JournalApplied Microbiology and Biotechnology
Volume47
Issue number1
DOIs
Publication statusPublished - 1997
Externally publishedYes

ASJC Scopus subject areas

  • Biotechnology
  • Microbiology
  • Bioengineering

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