Chelating ion exchange resins in removal of heavy metal ions from waters and wastewaters in presence of a complexing agent

摘要

Three com. chelating ion exchange resins (Chelite P, Do-wex M-4195, Diphonix) were used for selective removal of Cu(II) ions from aq. soln. in presence of Na N-(1,2-dicarbo-xyethylen)-D,L-aspargate (Baypure CX100) (1:1) under static conditions. Kinetic parameters of the sorption at changing pH and concn. and the FT-IR spectra of the exchange resins were registered before and after the process. Comprehensive characteristics of the exchange resins used were presented.