ETUDE COMPARATIVE DES PROCESSUS DE DEPOLLUTION EN UTILISANT DES ARGILES NATURELLES ET MODIFIEES CHIMIQUE

NISTOR DENISA*, SIMINICEANU ILIE**, AZZOUZ ABDELKRIM*

*UNIVERSITY OF BACĂU, CALEA MARASESTI 157, RO-5500 BACĂU, ROMANIA, E-MAIL: DNISTOR@UB.RO **TECHNICAL UNIVERSITY “GH. ASACHI”, BD. MANGERON 71, RO-6600 IAŞI, ROMANIA, E-MAIL: ISIMINIC@CH.TUIAŞI.RO

Abstract

The separation of copper from dilute aqueous systems is studied for environmental protection. In this paper was studied the removal of copper from dilute aqueous solutions by ion exchange with crude clays and chemical modified clays (pillared layer clays).

Keywords

pillared layer clays surface acidity copper depollution processes