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Adsorption of Cd(II) and Pb(II) from aqueous solutions on activated alumina.
J Colloid Interface Sci. 2009 May 01; 333(1):14-26.JC

Abstract

The ability of activated alumina as synthetic adsorbent was investigated for adsorptive removal of Cd(II) and Pb(II) ions from aqueous solutions. Various physico-chemical parameters such as pH, initial metal ion concentration, and adsorbent dosage level and equilibrium contact time were studied. The optimum solution pH for adsorption of Cd(II) and Pb(II) from aqueous solutions was found to be 5. Kinetics data were best described by pseudo-second order model. The effective particle diffusion coefficient of Cd(II) and Pb(II) are of the order of 10(-10) m(2)/s. Values of mass transfer coefficient were estimated as 4.868x10(-6) cm/s and 6.85x10(-6) cm/s for Cd(II) and Pb(II) adsorption respectively. The equilibrium adsorption data for Cd(II) and Pb(II) were better fitted to Langmuir adsorption isotherm model. The thermodynamic studies indicated that the adsorption was spontaneous and exothermic for Cd(II) adsorption and endothermic for Pb(II). The sorption energy calculated from Dubinin-Radushkevich isotherm were 11.85 kJ/mol and 11.8 kJ/mol for the adsorption of Cd(II) and Pb(II) respectively which indicated that both the adsorption processes were chemical in nature. Desorption studies were carried out using dilute mineral acids. Application studies carried out using industrial waste water samples containing Cd(II) and Pb(II) showed the suitability of activated alumina in waste water treatment plant operation.

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Authors+Show Affiliations

Naiya TK
Department of Chemical Engineering, University of Calcutta, 92, A P C Road, Kolkata-700 009, India.
Bhattacharya AK
No affiliation info available
Das SK
No affiliation info available

MeSH

AdsorptionAluminum OxideCadmiumHydrogen-Ion ConcentrationKineticsLeadParticle SizeSolutionsSurface PropertiesThermodynamicsTime FactorsWater

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19211112

Citation

Naiya, Tarun Kumar, et al. "Adsorption of Cd(II) and Pb(II) From Aqueous Solutions On Activated Alumina." Journal of Colloid and Interface Science, vol. 333, no. 1, 2009, pp. 14-26.
Naiya TK, Bhattacharya AK, Das SK. Adsorption of Cd(II) and Pb(II) from aqueous solutions on activated alumina. J Colloid Interface Sci. 2009;333(1):14-26.
Naiya, T. K., Bhattacharya, A. K., & Das, S. K. (2009). Adsorption of Cd(II) and Pb(II) from aqueous solutions on activated alumina. Journal of Colloid and Interface Science, 333(1), 14-26. https://doi.org/10.1016/j.jcis.2009.01.003
Naiya TK, Bhattacharya AK, Das SK. Adsorption of Cd(II) and Pb(II) From Aqueous Solutions On Activated Alumina. J Colloid Interface Sci. 2009 May 1;333(1):14-26. PubMed PMID: 19211112.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Adsorption of Cd(II) and Pb(II) from aqueous solutions on activated alumina. AU - Naiya,Tarun Kumar, AU - Bhattacharya,Ashim Kumar, AU - Das,Sudip Kumar, Y1 - 2009/01/10/ PY - 2008/08/11/received PY - 2008/12/09/revised PY - 2009/01/03/accepted PY - 2009/2/13/entrez PY - 2009/2/13/pubmed PY - 2009/6/24/medline SP - 14 EP - 26 JF - Journal of colloid and interface science JO - J Colloid Interface Sci VL - 333 IS - 1 N2 - The ability of activated alumina as synthetic adsorbent was investigated for adsorptive removal of Cd(II) and Pb(II) ions from aqueous solutions. Various physico-chemical parameters such as pH, initial metal ion concentration, and adsorbent dosage level and equilibrium contact time were studied. The optimum solution pH for adsorption of Cd(II) and Pb(II) from aqueous solutions was found to be 5. Kinetics data were best described by pseudo-second order model. The effective particle diffusion coefficient of Cd(II) and Pb(II) are of the order of 10(-10) m(2)/s. Values of mass transfer coefficient were estimated as 4.868x10(-6) cm/s and 6.85x10(-6) cm/s for Cd(II) and Pb(II) adsorption respectively. The equilibrium adsorption data for Cd(II) and Pb(II) were better fitted to Langmuir adsorption isotherm model. The thermodynamic studies indicated that the adsorption was spontaneous and exothermic for Cd(II) adsorption and endothermic for Pb(II). The sorption energy calculated from Dubinin-Radushkevich isotherm were 11.85 kJ/mol and 11.8 kJ/mol for the adsorption of Cd(II) and Pb(II) respectively which indicated that both the adsorption processes were chemical in nature. Desorption studies were carried out using dilute mineral acids. Application studies carried out using industrial waste water samples containing Cd(II) and Pb(II) showed the suitability of activated alumina in waste water treatment plant operation. SN - 1095-7103 UR - https://www.unboundmedicine.com/medline/citation/19211112/Adsorption_of_Cd_II__and_Pb_II__from_aqueous_solutions_on_activated_alumina_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0021-9797(09)00013-7 DB - PRIME DP - Unbound Medicine ER -