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http://dx.doi.org/10.5322/JES.2007.16.4.441

A Study on Escherichia Coli Disinfection by the Electrochemical Method for Small Sewerage System  

Park, Young-Seek (Department of Health & Environment, Daegu University)
Jeong, No-Sung (Department of Environ. Sci., Catholic University of Daegu)
Kim, Dong-Seog (Department of Environ. Sci., Catholic University of Daegu)
Publication Information
Journal of Environmental Science International / v.16, no.4, 2007 , pp. 441-447 More about this Journal
Abstract
This study was carried out to investigate the effect of electrochemical (EC) disinfection of artificial wastewater contaminated by Escherichia coli culture. Circulated batch type electrochemical disinfection system using three plates electrodes was used. Also, the several factors (pH, ORP, DO, temperature, current, conductivity) were measured in order to investigate the fundamental design factor in the EC disinfection system. It was demonstrated that the EC process was highly effective for wastewater disinfection. At the constant voltage, the disinfection efficiency was increased according to time. The disinfection efficiency and current increased as the increase of voltage. The variation of conductivity was a little related to the variation of CFU (colony forming units). The differences in disinfection efficiency according to the ice pack and the variation of electrodes were not occurred. The EC disinfection efficiency and current increased according to the increase of circulating flow rate.
Keywords
Electrochemical disinfection; Voltage; Current; Temperature; Electrode; Flow rate;
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