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Low cost bio-sorbent 'wheat bran' for the removal of cadmium from wastewater: kinetic and equilibrium studies.
Bioresour Technol. 2006 May; 97(8):994-1001.BT

Abstract

Novel bio-sorbent wheat bran has been successfully utilized for the removal of cadmium(II) from wastewater. The maximum removal of cadmium(II) was found to be 87.15% at pH 8.6, initial Cd(II) concentration of 12.5 mg l-1 and temperature of 20 degrees C. The effect of different parameters such as contact time, adsorbate concentration, pH of the medium and temperature were investigated. Dynamics of the sorption process were studied and the values of rate constant of adsorption, rate constant of intraparticle diffusion and mass transfer coefficient were calculated. Different thermodynamic parameters viz., changes in standard free energy, enthalpy and entropy have also been evaluated and it has been found that the reaction was spontaneous and exothermic in nature. The applicability of Langmuir isotherm showed of monolayer coverage of the adsorbate on the surface of adsorbent. A generalized empirical model was proposed for the kinetics at different initial concentrations.

Authors+Show Affiliations

Singh KK
Water Pollution Research Laboratory, Department of Applied Chemistry, Institute of Technology, Banaras Hindu University, Varanasi 221 005, India. kks_envir@yahoo.co.in
Singh AK
No affiliation info available
Hasan SH
No affiliation info available

MeSH

AdsorptionCadmiumDietary FiberHydrogen-Ion ConcentrationKineticsSpectrophotometry, InfraredTemperatureThermodynamicsTriticumWaste Disposal, FluidWater Pollutants, ChemicalWater Pollution, ChemicalX-Ray Diffraction

Pub Type(s)

Journal Article

Language

eng

PubMed ID

15993581

Citation

Singh, K K., et al. "Low Cost Bio-sorbent 'wheat Bran' for the Removal of Cadmium From Wastewater: Kinetic and Equilibrium Studies." Bioresource Technology, vol. 97, no. 8, 2006, pp. 994-1001.
Singh KK, Singh AK, Hasan SH. Low cost bio-sorbent 'wheat bran' for the removal of cadmium from wastewater: kinetic and equilibrium studies. Bioresour Technol. 2006;97(8):994-1001.
Singh, K. K., Singh, A. K., & Hasan, S. H. (2006). Low cost bio-sorbent 'wheat bran' for the removal of cadmium from wastewater: kinetic and equilibrium studies. Bioresource Technology, 97(8), 994-1001.
Singh KK, Singh AK, Hasan SH. Low Cost Bio-sorbent 'wheat Bran' for the Removal of Cadmium From Wastewater: Kinetic and Equilibrium Studies. Bioresour Technol. 2006;97(8):994-1001. PubMed PMID: 15993581.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Low cost bio-sorbent 'wheat bran' for the removal of cadmium from wastewater: kinetic and equilibrium studies. AU - Singh,K K, AU - Singh,A K, AU - Hasan,S H, Y1 - 2005/07/01/ PY - 2003/10/28/received PY - 2005/04/29/revised PY - 2005/04/29/accepted PY - 2005/7/5/pubmed PY - 2006/5/25/medline PY - 2005/7/5/entrez SP - 994 EP - 1001 JF - Bioresource technology JO - Bioresour Technol VL - 97 IS - 8 N2 - Novel bio-sorbent wheat bran has been successfully utilized for the removal of cadmium(II) from wastewater. The maximum removal of cadmium(II) was found to be 87.15% at pH 8.6, initial Cd(II) concentration of 12.5 mg l-1 and temperature of 20 degrees C. The effect of different parameters such as contact time, adsorbate concentration, pH of the medium and temperature were investigated. Dynamics of the sorption process were studied and the values of rate constant of adsorption, rate constant of intraparticle diffusion and mass transfer coefficient were calculated. Different thermodynamic parameters viz., changes in standard free energy, enthalpy and entropy have also been evaluated and it has been found that the reaction was spontaneous and exothermic in nature. The applicability of Langmuir isotherm showed of monolayer coverage of the adsorbate on the surface of adsorbent. A generalized empirical model was proposed for the kinetics at different initial concentrations. SN - 0960-8524 UR - https://www.unboundmedicine.com/medline/citation/15993581/Low_cost_bio_sorbent_'wheat_bran'_for_the_removal_of_cadmium_from_wastewater:_kinetic_and_equilibrium_studies_ DB - PRIME DP - Unbound Medicine ER -