Articles > Journals > Applied Sciences journals > American Journal of Environmental Sciences articles > April 2005

Article: Energetic aspects related to heavy metals adsorption on the surface of volcanic tuff: I. The influence of activation parameters in [Cu.sup.2+] adsorption.

Article from:
American Journal of Environmental Sciences
Article date:
April 1, 2005
Author:
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Abstract: The article develops some physico-chemical aspects presented along of copper ions adsorption in treatment of wastewaters using volcanic tuff. In the experiments volcanic tuff from Stoiana Pagli a (Romania) has been used. Different concentrations of NaCl and HCl solutions were used for activation of tuff. The increase of activation solutions' concentrations indicates an intensification of specific adsorption of copper as consequence of energetic changes of the active centers spread on the tuff surface.

Key words: Copper adsorption, clinoptilolite, activation process

INTRODUCTION

Volcanic tuffs with theirs composition of natural ...

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