Effect of diluent polarity on membrane stability in the separation of trace Pd(II) from wastewater by HFSLM using LIX84-I

다국어 초록 (Multilingual Abstract)

In a liquid membrane, the type of diluents for the selected extractant plays an important role inmembrane stability and separation efficiency. High Pd(II) extraction and stripping of 96% and 91%,respectively, were observed by HFSLM under a feed pH 2, 5% (v/v) LIX84-I dissolved in kerosene and amixture of 0.8 M NH2CSNH2 with 1 M HCl as a stripping solution. The highest stability was attained at350 min by using hexane as a diluent. Finally, the calculated activation energy (Ea) of 30 kJ/mol impliedthat the separation of Pd(II) was controlled by the diffusion and chemical reaction.

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