Scholarly record
REMOVAL OF ZN(II) FROM AQUEOUS SOLUTION BY USING SMECTITE-BEARING SOIL
Abstract
In this study, removal zinc from aqueous solution was studied using smectite-bearing soil. The effects of initial Zn(II) concentration, pH, adsorbent dosage, and contact time were investigated. When the initial concentration of Zn(II) was incresed from 0.7 to 3.77 mM, the Zn(II) removal efficiency decreased from 100\% to 90.7\%. To determine the effect of pH on the adsorption efficiency of Zn(II), pH was varied between 3.0 and 7.0. The sorption efficiency of Zn(II) onto soil seems to be independent of pH with in studied pH range and initial Zn(II) concentration. When soil was treated with 1.23 mM Zn(II) solution, the sorption efficiency was determined as 96\% at all pH values tested. As the dosage of soil was increased from 0.3 g to 1.5 g, the Zn(II) removal efficiency was almost constant at higher dosages than 0.5 g. Finally, the ability of soil to remove Zn(II) from aqueous solutions has been investigated in batch reactor with a maximum contact time of 180 min.
Publication details
References8
Inglezakis,VJ., Stylianou M.A., Gkantzou D., Loizidou M.D., Removal of Pb(II) from aqueous solutions by using clinoptilolite and bentonite as adsorbents, Desalination 210,248-256,2007.
Sen Gupta, S. and Bhattacharyya, K.G., Removal of Cd(II) from aqueous solution by kaolinite, montmorillonite and their poly(oxo zirconium) and tetrabutylammonium derivatives, Journal of Hazardous Materials, vol.B128, 247-257, 2006.
Hizal, J. and Apak R., Modeling of cadmium(II) adsorption on kaolinite-based clays in the absence and presence of humic acid, Applied Clay Science, vol. 32, 232-244, 2006.
Sari A,Tuzen M., Citak D., Soylak M., Equilibrium, kinetic and thermodynamic studies of adsorption of Pb(II) from aqueous solution onto Turkish kaolinite clay, Journal of Hazardous Materials vol.149, 283-291, 2007.
Unuabonah, EL, Adebowale, K.O., Olu-Owolabi, B.I., Yang, L.Z., Kong L.X., Adsorption of Pb (II) and Cd (II) from aqueous solutions onto sodium tetraboratemodified Kaolinite clay: Equilibrium and thermodynamic studies, Hydrometallurgy,In Press.
Gu,X and Evans, L.J., Surface complexation modelling of Cd(U), Cu(II), Ni(II), Pb(II) and Zn(II) adsorption onto kaolinite, Geochimica et Cosmochimica Acta, vol. 72, 267-276, 2008.
Asci, Y., Nurbas, M., Sag Acikel.Y., A comparative study for the sorption of Cd(II) by soils with different clay contents and mineralogy and the recovery of Cd(II) using rhamnolipid biosurfactant, Journal of Hazardous Materials, vol. 154, 1-3, 663-673, 2008.
Bedoui, K, Bekri-Abbes, I., Srasra, E., Removal of cadmium (II) from aqueous solution using pure smectite and Lewatite S 100: the effect of time and metal concentration, Desalination, vol. 223, 269-273, 2008.
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.