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Clarified sludge (basic oxygen furnace sludge)--an adsorbent for removal of Pb(II) from aqueous solutions--kinetics, thermodynamics and desorption studies.
J Hazard Mater. 2009 Oct 15; 170(1):252-62.JH

Abstract

The basic oxygen furnace waste generated in steel plant has been used as a low cost adsorbent for the removal of Pb(II) from aqueous solution. The effect of pH, adsorbent dosage, initial metal ion concentration, contact time and temperature on adsorption process was studied in batch experiments. Results of the equilibrium experiments showed that the solution pH was the key factor affecting the adsorption characteristics. Optimum pH for the adsorption was found to be 5 with corresponding adsorbent dosage level of 5 g/L. The equilibrium was achieved within 1h of contact time. Kinetics data were best described by pseudo second order model. The effective particle diffusion coefficient of Pb(II) is the order of 10(-10)m(2)/s. The maximum uptake was 92.5mg/g. The adsorption data can be well fitted by Freundlich isotherm. The result of the equilibrium studies showed that the solution pH was the key factor affecting the adsorption. External mass transfer analysis was also carried out for the adsorption process. The thermodynamic studies indicated that the adsorption is spontaneous and endothermic. The sorption energy (10.1745 kJ/mol) calculated from Dubinin-Radushkevich isotherm indicated that the adsorption process is chemical in nature. Desorption studies were carried out using dilute mineral acids to elucidate the mechanism of adsorption. Application studies were carried out considering the economic viewpoint of wastewater treatment plant operations.

Authors+Show Affiliations

Department of Chemical Engineering, University of Calcutta, Kolkata, West Bengal 700 009, India.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19520500

Citation

Naiya, Tarun Kumar, et al. "Clarified Sludge (basic Oxygen Furnace Sludge)--an Adsorbent for Removal of Pb(II) From Aqueous Solutions--kinetics, Thermodynamics and Desorption Studies." Journal of Hazardous Materials, vol. 170, no. 1, 2009, pp. 252-62.
Naiya TK, Bhattacharya AK, Das SK. Clarified sludge (basic oxygen furnace sludge)--an adsorbent for removal of Pb(II) from aqueous solutions--kinetics, thermodynamics and desorption studies. J Hazard Mater. 2009;170(1):252-62.
Naiya, T. K., Bhattacharya, A. K., & Das, S. K. (2009). Clarified sludge (basic oxygen furnace sludge)--an adsorbent for removal of Pb(II) from aqueous solutions--kinetics, thermodynamics and desorption studies. Journal of Hazardous Materials, 170(1), 252-62. https://doi.org/10.1016/j.jhazmat.2009.04.103
Naiya TK, Bhattacharya AK, Das SK. Clarified Sludge (basic Oxygen Furnace Sludge)--an Adsorbent for Removal of Pb(II) From Aqueous Solutions--kinetics, Thermodynamics and Desorption Studies. J Hazard Mater. 2009 Oct 15;170(1):252-62. PubMed PMID: 19520500.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Clarified sludge (basic oxygen furnace sludge)--an adsorbent for removal of Pb(II) from aqueous solutions--kinetics, thermodynamics and desorption studies. AU - Naiya,Tarun Kumar, AU - Bhattacharya,Ashim Kumar, AU - Das,Sudip Kumar, Y1 - 2009/05/04/ PY - 2008/08/13/received PY - 2009/04/08/revised PY - 2009/04/26/accepted PY - 2009/6/13/entrez PY - 2009/6/13/pubmed PY - 2009/10/6/medline SP - 252 EP - 62 JF - Journal of hazardous materials JO - J Hazard Mater VL - 170 IS - 1 N2 - The basic oxygen furnace waste generated in steel plant has been used as a low cost adsorbent for the removal of Pb(II) from aqueous solution. The effect of pH, adsorbent dosage, initial metal ion concentration, contact time and temperature on adsorption process was studied in batch experiments. Results of the equilibrium experiments showed that the solution pH was the key factor affecting the adsorption characteristics. Optimum pH for the adsorption was found to be 5 with corresponding adsorbent dosage level of 5 g/L. The equilibrium was achieved within 1h of contact time. Kinetics data were best described by pseudo second order model. The effective particle diffusion coefficient of Pb(II) is the order of 10(-10)m(2)/s. The maximum uptake was 92.5mg/g. The adsorption data can be well fitted by Freundlich isotherm. The result of the equilibrium studies showed that the solution pH was the key factor affecting the adsorption. External mass transfer analysis was also carried out for the adsorption process. The thermodynamic studies indicated that the adsorption is spontaneous and endothermic. The sorption energy (10.1745 kJ/mol) calculated from Dubinin-Radushkevich isotherm indicated that the adsorption process is chemical in nature. Desorption studies were carried out using dilute mineral acids to elucidate the mechanism of adsorption. Application studies were carried out considering the economic viewpoint of wastewater treatment plant operations. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/19520500/Clarified_sludge__basic_oxygen_furnace_sludge___an_adsorbent_for_removal_of_Pb_II__from_aqueous_solutions__kinetics_thermodynamics_and_desorption_studies_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(09)00687-6 DB - PRIME DP - Unbound Medicine ER -