Journal of Advanced Chemical Engineering

Abstract

Separation and Determination of Zirconium from Environmental Water Samples Using Extractant Impregnated Resin

Dipak J. Garole*, Sandesh R. Tetgure, Bharat C. Choudhary, Pramod P. Patil, Amulrao U. Borse and Surendra Prasad

In the present study, a novel and rapid extraction method using Extractant Impregnated Resin (EIR) prepared by impregnating Amberlite XAD-4 resin with Isonitroso-4-Methyl-2-Pentanone (IMP) was evaluated for separation and spectrophotometric determination of Zr⁴⁺ with arsenazo III at 670 nm. The optimization of various parameters influencing the sorption of Zr⁴⁺ in column and batch methods was carried. Zr⁴⁺ was quantitatively sorbed at pH 3.5 and recovered 99.2 ± 0.6% using 10 mL of 0.1 M oxalic acid as eluent in column method. The pre-concentration factor 200 with breakthrough volume 2000 mL and reusability up to 90 cycles were achieved with EIR. Experimental data were evaluated using the kinetic and isotherm models to explain the sorption mechanism of Zr⁴⁺ by EIR. The sorption equilibrium and kinetic data were best fitted in Dubinin-Radushkevich isotherm and pseudo second order, respectively. The mean energy (EDR) of 11.47 kJ/mol for the sorption process suggested chemisorption of Zr⁴⁺ by EIR. The application of the developed method was assessed for Zr⁴⁺ extraction and determination in synthetic mixtures, tap, well and seawater samples. Overall, the experimental results of EIR strongly supported its potential as a future adsorbent for the extraction and determination of zirconium from water samples.

Published Date: 2024-03-11; Received Date: 2023-08-05