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Related Experiment Video

Updated: Jun 12, 2026

Determination of the Settling Rate of Clay/Cyanobacterial Floccules
06:00

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Published on: June 11, 2018

Interaction between viruses and clays in static and dynamic batch systems.

Vasiliki I Syngouna1, Constantinos V Chrysikopoulos

  • 1Department of Civil Engineering, Environmental Engineering Laboratory, University of Patras, 26500 Patras, Greece.

Environmental Science & Technology
|May 26, 2010
PubMed
Summary

This study shows that temperature and agitation enhance virus adsorption onto clay particles like kaolinite and bentonite. Clays effectively remove viruses from water, with higher adsorption observed under dynamic conditions.

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Area of Science:

  • Environmental Science
  • Microbiology
  • Geochemistry

Background:

  • Viruses in water pose a health risk.
  • Clay minerals are potential sorbents for virus removal.
  • Understanding virus-clay interactions is crucial for water purification.

Purpose of the Study:

  • To investigate virus adsorption onto kaolinite and bentonite clays.
  • To determine the effects of temperature and agitation on virus-clay interactions.
  • To assess the efficiency of clays in removing viruses from aqueous solutions.

Main Methods:

  • Used bacteriophages MS2 and PhiX174 as human virus surrogates.
  • Conducted static and dynamic adsorption experiments at 4°C and 25°C.
  • Quantified electrokinetic properties and calculated DLVO interaction energies.

Main Results:

  • Virus adsorption increased linearly with virus concentration.
  • Higher adsorption coefficients (K(d)) were observed for MS2 than PhiX174.
  • Dynamic experiments and increased temperature led to greater virus adsorption.

Conclusions:

  • Clay particles, particularly bentonite, show effectiveness in removing viruses from dilute aqueous solutions.
  • Temperature and agitation significantly enhance virus adsorption onto clays.
  • This research provides foundational data for using clays in water treatment for virus removal.