Surface modification of the natural clinoptilolite for its potential use for the nitrate removal from water media
Abstract: The natural zeolitic tuff, containing more than 70 % clinoptilolite (CLI), has been investigated as a starting material for obtaining a low cost adsorbent for the removal nitrate ions from water media. The clinoptilolite surface was modified by a simple method with iron(III), aluminum, manganese(IV) and magnesium oxide in order to make the negatively charged zeolite surface accessible for nitrate adsorption. Preliminary results indicate that the best adsorption capacity towards nitrate are shown by the zeolite samples containing magnesium and iron(III) oxide particles.
engleski
2013
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clinoptilolite, zeolite modification, adsorption, nitrate removal