Virus Filtration in Porous Iron (III) Oxide Doped Ceramic Water Filters

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The consumption of microbially - and virally - contaminated water is a pressing health issue in developing nations. The concentration of surface and underground water is often responsible for a high incidence of diarrheal diseases, especially among children under the age of five years [1]. Ceramic water filters (CWFs) have been proposed as a household water treatment solution. However, despite their high bacterial filtration efficiency [2], existing CWFs cannot yet effectively remove viruses from water. Using MS2 bacteriophage as a model for human enteric viruses, this work explores the effect of doping CWFs with goethite (FeOOH) on the removal of viruses from contaminated waters. Fe-CWFs were found to remove bacteriophage from challenged water at significantly higher efficiencies than the control CWF. Filters composed of 60:40 ceramic:sawdust volume ratios and doped with different amounts of FeOOH were studied. A Fe-CWF containing 24.9 wt% Fe2O3 removed a mean of 1.93 log (98.83%) of MS2. The efficiency of viral filtration decreased significantly when the pH of the challenged water deviated from neutral (pH 5.9, 8.7 and 10.2). In addition, all Fe-CWFs tested removed more than 3 log (99.9%) of bacteria.

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Periodical:

Edited by:

Prof. Wole Soboyejo, Dr. Shola Odusunya, Dr. Zebaze Kana, Dr. Nicolas Anuku, Dr. Karen Malatesta and Dr. Mohammed Dauda

Pages:

284-294

Citation:

N. H. Tsao et al., "Virus Filtration in Porous Iron (III) Oxide Doped Ceramic Water Filters", Advanced Materials Research, Vol. 1132, pp. 284-294, 2016

Online since:

December 2015

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$41.00

* - Corresponding Author

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