Use of La-, Ce-, Y-, Fe- bentonites for Removing Phosphate Ions from Aqueous Media

Authors

  • Dóra Buzetzky
    Affiliation

    Imre lajos Isotope Laboratory, Department of Physical Chemistry, University of Debrecen, Hungary

  • Noémi M. Nagy
    Affiliation

    Imre lajos Isotope Laboratory, Department of Physical Chemistry, University of Debrecen, Hungary

  • József Kónya
    Affiliation

    Imre lajos Isotope Laboratory, Department of Physical Chemistry, University of Debrecen, Hungary

https://doi.org/10.3311/PPch.9871

Abstract

Clays play an important role in the environment. By removing cations and anions either through ion exchange, adsorption and precipitation, or all these combined, they can act as natural decontaminating agents of numerous pollutants. In this study, four modified bentonites (La-, Ce-, Y-, Fe-bentonite) were prepared and characterized, and their phosphate sorption capabilities were measured in batch experiments. Equilibrium times were also examined. The activation energy of the sorption process was calculated. The La- , Ce- and Y-bentonite can bind similar amount of phosphate ions, while iron-bentonite can bind only half of it compared to La-, Ce- and Y-bentonite.

Keywords:

modified bentonite, phosphate sorption, eutrophication, phosphate sorption kinetics

Published Online

2017-01-13

How to Cite

Buzetzky, D., Nagy, N. M., Kónya, J. Use of La-, Ce-, Y-, Fe- bentonites for Removing Phosphate Ions from Aqueous Media, Periodica Polytechnica Chemical Engineering, 61(1), pp. 27–32, 2017. https://doi.org/10.3311/PPch.9871

Issue

Section

Articles