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Article: Effectiveness and Kinetics of Ferrate as a Disinfectant for Ballast Water
- Article from:
- Water Environment Research
- Article date:
- June 1, 2008
- Author:
CopyrightCopyright Water Environment Federation Jun 2008. Provided by ProQuest LLC. (Hide copyright information)
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ABSTRACT:
This study examined whether ferrate could meet the international standards for successful ballast water treatment, including final concentrations of less than 1 CFU/mL of Enterococci, less than 2.5 CFU/mL of Escherichia coli, and less than 1 CFU/100 mL of Vibrio cholerae. Pure cultures of E. coli, Klebsiella pneumoniae, and V. cholerae, and a mixed culture of Enterococcus faecium and E. faecilis were grown in saline solution to simulate ballast water and were treated with dosages of ferrate ranging from 0.25 to 5.0 mg/L. A ferrate dose of 5 mg/L resulted in complete disinfection of all organisms tested, and smaller dosages were also very effective. Tailing was consistently ...