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Electrochemical disinfection of simulated ballast water on PbO2/graphite felt electrode.
- Source :
- Marine Pollution Bulletin; Apr2016, Vol. 105 Issue 1, p319-323, 5p
- Publication Year :
- 2016
-
Abstract
- A novel PbO 2 /graphite felt electrode was constructed by electrochemical deposition of PbO 2 on graphite felt and characterized by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM) analysis. The prepared electrode is a viable technology for inactivation of Escherichia coli , Enterococcus faecalis , and Artemia salina as indicator organisms in simulated ballast water treatment, which meets the International Maritime Organization (IMO) Regulation D-2. The effects of contact time and current density on inactivation were investigated. An increase in current density generally had a beneficial effect on the inactivation of the three species. E.faecalis and A.salina were more resistant to electrochemical disinfection than E. coli . The complete disinfection of E.coli was achieved in <8 min at an applied current density of 253 A/m 2 . Complete inactivation of E. faecalis and A.salina was achieved at the same current density after 60 and 40 min of contact time, respectively. A. salina inactivation follows first-order kinetics. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0025326X
- Volume :
- 105
- Issue :
- 1
- Database :
- Supplemental Index
- Journal :
- Marine Pollution Bulletin
- Publication Type :
- Academic Journal
- Accession number :
- 114754997
- Full Text :
- https://doi.org/10.1016/j.marpolbul.2016.02.003