Kinetic, Equilibrium and Mechanistic Studies of Nickel Removal by Glossocardia Linearifolia Stem
C. Jayajothi1, M. M. Senthamilselvi1, S. Arivoli3, N. Muruganantham4

1C. Jayajothi, Research Scholar, Periyar E. V. R. College, Tiruchirappalli (Tamil Nadu), India.
2M. M. Senthamilselvi, Reginol Joint Director, Department of Collegiate Education, Tiruchirappalli (Tamil Nadu), India.
3S. Arivoli, Associate Professor, Department of Chemistry, Thiru. Vi. Ka. Government Arts College Thiruvarur (Tamil Nadu), India.
4N. Muruganantham, Assistant Professor, Department of Chemistry, Sri Ramakirshna College of Engineering, Perambalur (Tamil Nadu), India.

Manuscript received on 13 June 2017 | Revised Manuscript received on 20 June 2017 | Manuscript Published on 30 June 2017 | PP: 109-115 | Volume-6 Issue-5, June 2017 | Retrieval Number: E5012066517/17©BEIESP
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Abstract: An adsorbent prepared from Glossocardia linearifolia Stem, by acid treatment was tested for its efficiency in removing Nickel ion. The process parameters studied include agitation time, initial nickel ion concentration, adsorbent dose, pH and temperature. The adsorption followed second order reaction equation and the rate is mainly controlled by intra-particle diffusion. Freundlich and Langmuir isotherm models were applied to the equilibrium data. The adsorption capacity (Qm) obtained from the Langmuir isotherm plot at an initial pH of 6.0 and at 30, 40, 50, 60 ± 0.50C. The influence of pH on metal ion removal was significant and the adsorption was increased with increase in temperature. A portion of the nickel ion was recovered from the spent AGLS using 0.1M HCl.
Keywords: Activated Glossocardia linearifolia Stem, Nickel Ion, Adsorption Isotherm, Equilibrium and Thermodynamic Parameters, Intra-Particle Diffusion.

Scope of the Article: Bio-Science and Bio-Technology