What is it about?
Continuous-flow column experiments were conducted to investigate the performance of permeable sorption barriers for the removal of cadmium and zinc from groundwater. Zeolite, ion-exchange resin and granular activated carbon as reactive materials were used. The effectiveness and stability of reactive materials were studied by monitoring of changes of metal ions concentration and selected background anions and cations concentration in groundwater during its flow through columns.
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Why is it important?
Our findings show that the high efficiency of ion-exchange resin in PRB for removal of heavy metals from groundwater was coupled with its reactivity and long barrier lifetime. The system using resin requires smaller amount to treat a given volume of groundwater as compared to other materials. Moreover, the presence of other ions did not impact on activity and permeability of barrier filled with resin.
Perspectives
Writing this article was a great pleasure as it has co-author with whom I have had long standing collaboration. This article also lead to greater involvement in modelling of metal ions sorption process.
Iwona Zawierucha
Akademia im Jana Dlugosza w Czestochowie
Read the Original
This page is a summary of: Evaluation of permeable sorption barriers for removal of Cd(II) and Zn(II) ions from contaminated groundwater, Water Science & Technology, August 2019, IWA Publishing,
DOI: 10.2166/wst.2019.288.
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