THE REMOVAL OF ZINC FROM AQUEOUS-SOLUTIONS BY NATURAL BENTONITE

Authors
MELLAH A CHEGROUCHE S
Citation
A. Mellah et S. Chegrouche, THE REMOVAL OF ZINC FROM AQUEOUS-SOLUTIONS BY NATURAL BENTONITE, Water research, 31(3), 1997, pp. 621-629
Citations number
10
Categorie Soggetti
Engineering, Civil","Environmental Sciences","Water Resources
Journal title
Water research → ACNP
ISSN journal
00431354
Volume
31
Issue
3
Year of publication
1997
Pages
621 - 629
Database
ISI
SICI code
0043-1354(1997)31:3<621:TROZFA>2.0.ZU;2-T
Abstract
The equilibrium isotherms of zinc adsorption onto natural bentonite sh ow that the data correlate well with Freundlich and Langmuir models an d that the adsorption is physical in nature. The operating parameters (agitation-speed, solid-liquid ratio, temperature, particle size and i nitial zinc concentration) influenced the rate of adsorption. The maxi mum monomolecular capacity eo according to the Langmuir model is 52.91 mg g(-1) for an initial zinc concentration of 300 mg L(-1) at 20 degr ees C. (C) 1997 Published by Elsevier Science Ltd.