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|Title:||Batch Lead and Cadmium Ions Binding and Exchange Properties of Polymer-Coated Hydrous Iron(III) Oxide|
|Authors:||Manju, G N|
Anirudhan, T S
|Abstract:||The possibility of Pb(II) and Cd(II) removal from the aqueous solutions by polymer-coated iron(III) oxide, having –COOH functional group, is studied. The effect of several operating variables such as duration of agitation, pH, initial concentration of adsorbate and temperature on metal removal by sorbent has been investigated in batch mode studies. The process of uptake is governed by the first-order kinetics. The adsorption kinetic data obtained from the experiments show that the process of Pb(II) and Cd(II) removal is mainly controlled by the internal diffusion. Sorption data have been correlated with both Langmuir and Freundlich adsorption models and indicate favourable adsorption with this new adsorbent material. The utility of the adsorbent has been tested using synthetic wastewaters. The spent adsorbent can be regenerated using 0.2 M NaCl and can then be reused.|
|ISSN:||0975-1084 (Online); 0022-4456 (Print)|
|Appears in Collections:||JSIR Vol.59(02) [February 2000]|
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