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Transport of biocolloids in water saturated columns packed with sand: Effect of grain size and pore water velocity

Chrysikopoulos Constantinos, Vasiliki I. Syngouna

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URIhttp://purl.tuc.gr/dl/dias/9FFC4207-467D-4206-BD51-98C89BDA30A0-
Identifierhttps://doi.org/ 10.1016/j.jconhyd.2011.09.007-
Languageen-
Extent14 pagesen
TitleTransport of biocolloids in water saturated columns packed with sand: Effect of grain size and pore water velocityen
CreatorChrysikopoulos Constantinosen
CreatorΧρυσικοπουλος Κωνσταντινοςel
CreatorVasiliki I. Syngounaen
Content SummaryThe main objective of this study was to evaluate the combined effects of grain size and pore water velocity on the transport in water saturated porous media of three waterborne fecal indicator organisms (Escherichia coli, MS2, and ΦX174) in laboratory-scale columns packed with clean quartz sand. Three different grain sizes and three pore water velocities were examined and the attachment behavior of Escherichia coli, MS2, and ΦX174 onto quartz sand was evaluated. The mass recoveries of the biocolloids examined were shown to be highest for Escherichia coli and lowest for MS2. However, no obvious relationships between mass recoveries and water velocity or grain size could be established from the experimental results. The observed mean dispersivity values for each sand grain size were smaller for bacteria than coliphages, but higher for MS2 than ΦX174. The single collector removal and collision efficiencies were quantified using the classical colloid filtration theory. Furthermore, theoretical collision efficiencies were estimated only for E. coli by the Interaction-Force-Boundary-Layer, and Maxwell approximations. Better agreement between the experimental and Maxwell theoretical collision efficiencies were observed.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2015-09-20-
Date of Publication2011-
Bibliographic CitationV. I. Syngouna, C.V. Chrysikopoulos , "Transport of biocolloids in water saturated columns packed with sand: Effect of grain size and pore water velocity ", J. of Cont. Hydro.,vol.126 ,no.3-4 ,pp. 301-314,2011.doi : 10.1016/j.jconhyd.2011.09.007en

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