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Uranium removal from aqueous solution by coir pith: equilibrium and kinetic studies.
Bioresour Technol. 2005 Jul; 96(11):1241-8.BT

Abstract

Basic aspects of uranium adsorption by coir pith have been investigated by batch equilibration. The influence of different experimental parameters such as final solution pH, adsorbent dosage, sorption time, temperature and various concentrations of uranium on uptake were evaluated. Maximum uranium adsorption was observed in the pH range 4.0-6.0. The Freundlich and Langmuir adsorption models were used for the mathematical description of the adsorption equilibrium. The equilibrium data fitted well to both the equilibrium models in the studied concentration range of uranium (200-800 mg/l) and temperatures (305-336 K). The coir pith exhibited the highest uptake capacity for uranium at 317 K, at the final solution pH value of 4.3 and at the initial uranium concentration of 800 mg/l. The kinetics of the adsorption process followed a second-order adsorption. The adsorbent used proved to be suitable for removal of uranium from aqueous solutions. 0.2 N HCl was effective in uranium desorption. The results indicated that the naturally abundant coir pith of otherwise nuisance value exhibited considerable potential for application in removal of uranium from aqueous solution.

Authors+Show Affiliations

Parab H
3-237-S, Analytical Chemistry Division, Modular Labs., Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
Joshi S
No affiliation info available
Shenoy N
No affiliation info available
Verma R
No affiliation info available
Lali A
No affiliation info available
Sudersanan M
No affiliation info available

MeSH

AbsorptionCocosFruitHydrogen-Ion ConcentrationIndiaKineticsModels, ChemicalPlant PreparationsRegression AnalysisUraniumWater Pollutants, RadioactiveWater Purification

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15734311

Citation

Parab, Harshala, et al. "Uranium Removal From Aqueous Solution By Coir Pith: Equilibrium and Kinetic Studies." Bioresource Technology, vol. 96, no. 11, 2005, pp. 1241-8.
Parab H, Joshi S, Shenoy N, et al. Uranium removal from aqueous solution by coir pith: equilibrium and kinetic studies. Bioresour Technol. 2005;96(11):1241-8.
Parab, H., Joshi, S., Shenoy, N., Verma, R., Lali, A., & Sudersanan, M. (2005). Uranium removal from aqueous solution by coir pith: equilibrium and kinetic studies. Bioresource Technology, 96(11), 1241-8.
Parab H, et al. Uranium Removal From Aqueous Solution By Coir Pith: Equilibrium and Kinetic Studies. Bioresour Technol. 2005;96(11):1241-8. PubMed PMID: 15734311.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Uranium removal from aqueous solution by coir pith: equilibrium and kinetic studies. AU - Parab,Harshala, AU - Joshi,Shreeram, AU - Shenoy,Niyoti, AU - Verma,Rakesh, AU - Lali,Arvind, AU - Sudersanan,M, Y1 - 2004/12/19/ PY - 2004/06/16/received PY - 2004/10/21/revised PY - 2004/10/22/accepted PY - 2005/3/1/pubmed PY - 2005/5/3/medline PY - 2005/3/1/entrez SP - 1241 EP - 8 JF - Bioresource technology JO - Bioresour Technol VL - 96 IS - 11 N2 - Basic aspects of uranium adsorption by coir pith have been investigated by batch equilibration. The influence of different experimental parameters such as final solution pH, adsorbent dosage, sorption time, temperature and various concentrations of uranium on uptake were evaluated. Maximum uranium adsorption was observed in the pH range 4.0-6.0. The Freundlich and Langmuir adsorption models were used for the mathematical description of the adsorption equilibrium. The equilibrium data fitted well to both the equilibrium models in the studied concentration range of uranium (200-800 mg/l) and temperatures (305-336 K). The coir pith exhibited the highest uptake capacity for uranium at 317 K, at the final solution pH value of 4.3 and at the initial uranium concentration of 800 mg/l. The kinetics of the adsorption process followed a second-order adsorption. The adsorbent used proved to be suitable for removal of uranium from aqueous solutions. 0.2 N HCl was effective in uranium desorption. The results indicated that the naturally abundant coir pith of otherwise nuisance value exhibited considerable potential for application in removal of uranium from aqueous solution. SN - 0960-8524 UR - https://www.unboundmedicine.com/medline/citation/15734311/Uranium_removal_from_aqueous_solution_by_coir_pith:_equilibrium_and_kinetic_studies_ DB - PRIME DP - Unbound Medicine ER -