1. Electrochemical disinfection of simulated ballast water on PbO2/graphite felt electrode.
- Author
-
Chen S, Hu W, Hong J, and Sandoe S
- Subjects
- Electrodes, Enterococcus faecalis, Escherichia coli, Kinetics, Water, Disinfection methods, Graphite chemistry, Lead chemistry, Oxides chemistry, Water Microbiology, Water Purification methods
- Abstract
A novel PbO2/graphite felt electrode was constructed by electrochemical deposition of PbO2 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 <8min at an applied current density of 253A/m(2). Complete inactivation of E. faecalis and A.salina was achieved at the same current density after 60 and 40min of contact time, respectively. A. salina inactivation follows first-order kinetics., (Copyright © 2016 Elsevier Ltd. All rights reserved.)
- Published
- 2016
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