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Adsorption of Ni+2 on rice husk ash (RHA).
Author(s):
1. U. Rafaqat: Materials Science Research Centre, PCSIR Laboratories Complex, Lahore, Pakistan
2. S. Zahra: Materials Science Research Centre, PCSIR Laboratories Complex, Lahore, Pakistan
3. S. Naeem: Materials Science Research Centre, PCSIR Laboratories Complex, Lahore, Pakistan
4. S. F. Mahmood: Materials Science Research Centre, PCSIR Laboratories Complex, Lahore, Pakistan
Abstract:
In this investigation, adsorption of Ni+2 had been studied by using batch­technique. Percentage adsorption was determined for RHA-Nickel solution system as a function of contact time, pH, adsorbate concentration and temperature. Adsorption data has been interpreted in terms of Freundlich and Langmuir equations. The value of DHo=-25.46184 kJ/mole. The desorption studies specially with 10% Acetic acid at given Nickel loadings on RHA show that significant percentage of the element is reversibly desorbed.
Page(s): 84-88
DOI: DOI not available
Published: Journal: Pakistan Journal of Science, Volume: 57, Issue: 3--4, Year: 2005
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