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This study focused on the preparation of a thermal decomposition product of alunite and potassium chloride mixture as an adsorbent for the removal of phosphate ions from aqueous solutions. The adsorbed phosphate ions were quantitatively determined by using ion chromatographic method. The adsorption of phosphate onto adsorbent was strongly dependent on pH and on ionic strength. The optimum pH for the...
The adsorption of Acid Red 57 (AR57) onto calcined-alunite was examined in aqueous solution in a batch system with respect to contact time, pH and temperature. The first-order, pseudo-second-order kinetic and the intraparticle diffusion models were used to describe the kinetic data and the rate constants were evaluated. The experimental data fitted very well the pseudo-second-order kinetic model and...
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