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Revista de Chimie (Rev. Chim.), Year 2007, Volume 58, Issue 11,





Influence of Competing Agent on Heavy Metal Ions Removal Capacities of Amberlite IRC 748 - a Chelating Resin

Abstract:

In this study, the removal of Cu(II) from synthetic wastewater was studied using a fluidized bed containing Amberlite IRC 748 - a chelating resin. Kinetic studies were performed as batch tests. The most chelator resins used industrially are in batch systems, where large volume of wastewater are stirred with the chelator resin beds before the beads are filtered off and regenerated, or under very slow conditions. There are some factors which have to be considered when a chelator resin is used industrially in wastewaters treatment. One of the most important factors is the presence of some metal chelating agents such as ethylenediamine derivatives capable to stabilize the metal ions in solution. These agents may compete with the binding sites of metal removal materials, thereby decreasing the effectiveness of these agents. For this reason in this paper are presented the effects of the competing chelating agent ethylenediaminetetraacetic acid (EDTA) on the copper ion removal capacities of IRC-748 in batch tests. In the conditions used the chelating resin adsoption capacity was changed in presence of EDTA. Keywords: copper removal from wastewater, batch test, chelating resin, competing agent


Issue: 2007, Volume 58, Issue 11
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