Facilitated transport of Zn~(2+), Ni~(2+) and Co~(2+) by liquid membrane using a tertio amine as carrier

摘要

The environmental impact of the emissions of heavy metals (Zn~(2+), Ni~(2+), Co~(2+) ) present in the industrial effluents become extensive more and more. The discharge of toxic metals into environment is a serious problem facing numerous industries. So the search for extraction techniques to remove those heavy metals are increasing interest. Liquid membranes have shown great potentiel in this way especially in cases where metal concentrations are relatively low and other techniques cannot be applied efficiently.