Competitive adsorption of toxic metals on bentonite and use of chitosan as flocculent coagulant to speed up the settling of generated clay suspensions.

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2016
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Abstract
Evaluation of modified Algerian clay as mineral adsorbent was done for its adsorbing capacity on copper (Cu) and Zinc (Zn) cations. The results obtained show a rapid kinetic adsorption for both metals (less than 2Ā h) following the pseudo-second order model with high elimination rates of 67.2 and 61.8% for Cu and Zn respectively. The adsorption isotherms analyzed with Langmuir model revealed a correlation with the experimental values. While the use of obtained chitosan at room temperature, as flocculent coagulant, accelerates the decantation of the colloidal particles in suspension generated after adsorption process.
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Authors Ferhat, M;Kadouche, S;Drouiche, N;Messaoudi, K;Messaoudi, B;Lounici, H;
Journal Chemosphere
Year 2016
DOI S0045-6535(16)31160-2
URL
Keywords
adsorption Zinc chitosan copper sodium clay toxic metal

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