Bacteriophage transport through a fining-upwards sedimentary sequence: laboratory experiments and simulation

Journal of Contaminant Hydrology
Raymond FlynnPierre Rossi

Abstract

A column containing four concentric layers of progressively finer-grained glass beads (graded column) was used to study the transport of the bacteriophage T7 in water flowing parallel to layering through a fining-upwards (FU) sedimentary structure. By passing a pulse of T7, and a conservative solute tracer upwards through a column packed with a single bead size (uniform column), the capacity of each bead type to attenuate the bacteriophage was determined. Solute and bacteriophage responses were modelled using an analytical solution to the advection-dispersion equation, with first-order kinetic deposition simulating bacteriophage attenuation. Resulting deposition constants for different flow velocities indicated that filtration theory-determined values differed from experimentally determined values by less than 10%. In contrast, the responses of solute and bacteriophage tracers passing upwards through graded columns could not be reproduced with a single analytical solution. However, a flux-weighted summation of four one-dimensional advective-dispersive analytical terms approximated solute breakthrough curves. The prolonged tailing observed in the resulting curve resembled that typically generated from field-based tracer test dat...Continue Reading

References

Oct 29, 2002·Journal of Contaminant Hydrology·J F SchijvenH A M de Bruin

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Citations

Jan 13, 2015·Food and Environmental Virology·P KokkinosApostolos Vantarakis
Oct 6, 2015·Journal of Environmental Quality·Raymond M FlynnPierre Rossi

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