Removal of Zn2+, Cu2+ and Ni2+ ions from aqueous solution via Tripoli: Simple component with single phase model
Tayel El Hasan2 , Zaid A. Al-Anber1 , Mohammad Al-Anber2 * , Mufeed Batarseh3 , Farah Al-Nasr4 , Anf Ziadat5 , Yoshigi Kato3 and Anwar Jiries2
1
Department of Chemical Engineering,
Faculty of Engineering Technology,
Al-Balqa Applied University, Amman,
P.O Box 15008,
Amman 11131
Jordan
2
Department of Chemical Science,
Faculty of Science,
Mutah University,
61710 Al-Karak,
P.O Box 7
Jordan
3
Prince Faisal Center for Dead Sea,
Environmental and Energy Research, Mu’tah University,
P.O. Box 3,
Karak 61710
Jordan
4
Faculty of Agriculture,
Mutah University,
Al-Karak,
P.O Box 7
Jordan
5
Faculty of Engineering,
Mutah University,
Al-Karak,
P.O Box 7
Jordan
http://dx.doi.org/10.12944/CWE.3.1.01
The removal of heavy metals (Cu2+, Zn2+ and Ni2+) from aqueous model solution has been studied using Tripoli (Microcrypto crystalline silica = MCCS) as adsorbent. The adsorption equilibrium studies are performed with a constant initial metal ion concentrations (namely 10 and 100 mg.L-1) and varying adsorbent weight. The adsorption percentages of Zn2+ and Cu2+ ions increase sharply by increasing adsorbent doses in the range of 0.5 g to 5 g (approx.) and then it slightly increases in the range of 5 g to 10 g of Tripoli, while the percentage removal of Ni2+ increases sharply in the whole range of 0.5 to 10 g of Tripoli. In this level, the maximum adsorption might be attained. The best pH value is at about 7 to achieve the maximum removal, otherwise the precipitation of sorbet and the hydrolysis of sorbent are occurred. The removal percentages at pH = 7 are high (Approx. above 92%), where the diluted Zn2+ is characterized as the highest removal efficiency. The obtained experimental data has successfully fitted to the Langmuir and Freundlich isotherm models. The Freundlich constant Kf for Zn2+ is greater than the other heavy metals for the initial concentration 100 mg.L-1. The negative value of DG° confirms the feasibility of the process and the spontaneous nature of adsorption with a high preference for metal ions (Zn2+, Cu2+ and Ni2+, respectively) to adsorb onto Tripoli
Copy the following to cite this article:
El-Hasan T, Al-Anber Z.A, Al-Anber M, Batarseh M, Al-Nasr F, Zaidat A, Kato Y, Jiries A. Removal of Zn2+, Cu2+ and Ni2+ ions from aqueous solution via Tripoli: Simple component with single phase model. Curr World Environ 2008;3(1):01-14 DOI:http://dx.doi.org/10.12944/CWE.3.1.01
Copy the following to cite this URL:
El-Hasan T, Al-Anber Z.A, Al-Anber M, Batarseh M, Al-Nasr F, Zaidat A, Kato Y, Jiries A. Removal of Zn2+, Cu2+ and Ni2+ ions from aqueous solution via Tripoli: Simple component with single phase model. Curr World Environ 2008;3(1):01-14. Available from: http://www.cwejournal.org?p=87/
