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Adsorption of toxic metal ions like Ni(II) on heat treated montmorillonite, fly ash and impregnated fly ash was studied in terms of different parameters like initial metal ion concentrations, pH and temperature. Impregnated fly ash (IFAA1) showed much higher levels of adsorption capacity as compared to fly ash and heat-treated montmorillonite. The various rate parameters of the adsorption process...
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