Kinetics, thermodynamic and equilibrium study of Cr(VI) adsorption from aqueous solutions by NCL coal dust

Ravi Shankar Singh; Monoj Kumar Mondal

Korean Journal of Chemical Engineering, Vol.29, No.12, 1782-1787, December, 2012

DOI10.1007/s11814-012-0092-2 Export Citation

Kinetics, thermodynamic and equilibrium study of Cr(VI) adsorption from aqueous solutions by NCL coal dust

Ravi Shankar Singh, and Monoj Kumar Mondal^†

Department of Chemical Engineering and Technology, Institute of Technology, Banaras Hindu University, Varanasi 221005, India

E-mail:

The waste material NCL coal dust was used as adsorbent for removal of Cr(VI) from aqueous solutions under batch adsorption experiments. The maximum removal of 99.97% was recorded at pH 2. The time required to attain equilibrium was found to be 60 min. Adsorption kinetics was described by the Lagergren equation. The value of the rate constant of adsorption was found to be 0.0615 min.1 at 16 mg dm.3 initial concentration and 298 K. The applicability of the Langmuir and Freundlich equations for the present system was also tested at different temperatures: 298, 313, and 328 K. Both thermodynamic parameters and temperature dependence indicated the endothermic nature of Cr(VI) adsorption on coal dust. The results showed that NCL coal dust is a promising adsorbent for the removal of Cr(VI) from aqueous solutions.

Keywords:Coal Dust;Adsorption Dynamics and Isotherms;Cr(VI);Thermodynamic Parameters

[References]

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Ajmal M, Rao RAK, Ahmad R, Khan MA, J. Hazard. Mater., 135(1-3), 242 (2006)
Train RE, Quality criteria for water, USEPA, Washington, DC (1979)
Krishnamurti CR, Vishwanathan P, Tata McGraw Hill, ND, India (1989)
Lee SM, Kim WG, Laldawngliana C, Tiwari D, J. Chem. Eng. Data, 55(9), 3089 (2010)
Borhakur S, Srivastava RC, J. Chem. Technol. Biotechnol., 51, 497 (1991)
Porter DJ, Raymond LW, Anastasia GD, Arch. Fam. Med., 8, 386 (1999)
Weckhuysen BM, Wachs IE, Schoonheydt RA, Chem. Rev., 96(8), 3327 (1996)
Rao M, Parwat AV, Bhole AG, Waste Manage., 22, 821 (2002)
Wu YH, Jiang L, Mi XM, Li B, Feng SX, Korean J. Chem. Eng., 28(3), 895 (2011)
Baisakh PC, Patnaik SN, Ind. J. Environ. Healt., 44, 189 (2002)
Singh RS, Singh VK, Mishra AK, Tiwari PN, Singh UN, Sharma YC, J. Appl. Sci. Environ. Sanita., 3, 129 (2008)
Rao M, Parwate AV, Bhogle AG, Waste Manage., 22, 821 (2002)
Singh AK, Singh DP, Pandey KK, Singh VN, J. Chem.Technol. Biotechnol., 42, 39 (1998)
Vogel AI, Textbook of Quantitative Inorganic Analysis (4th Ed.), ELBS, Longman (1978)
Standard Methods for the Examination of Water and Wastewater, 15th Ed., A.P.H.A., Washington, D.C. (1980)
Indian Standard Methods for Chemical Analysis of Fire clay and Silica Refractory Materials, IS 1527 (1960)
Taty-Costodes VC, Fauduet H, Porte C, Delacroix A, J. Hazard. Mater., 105(1-3), 121 (2003)
Krishnamoorthy A, Juliet JC, Ind. J. Chem., 43A, 45 (2004)
Singh RS, Singh VK, Tiwari PN, Singh UN, Sharma YC, The Open Environ. Eng. J., 2, 30 (2009)
Mondal MK, Korean J. Chem. Eng., 27(1), 144 (2010)
Mondal MK, Singh RS, Kumar A, Prasad BM, Korean J. Chem. Eng., 28(6), 1386 (2011)
Rengaraj S, Yeon KH, Moon SH, J. Hazard. Mater., 87(1-3), 273 (2001)
Bhattacharya AK, Venkobachar C, J. Environ. Eng., 110, 110 (1984)
Weng CH, J. Environ. Eng., 128, 716 (2002)

[Referenced By]

[1] Abollion O, Aceto M, Malandrino M, Sarzanini C, Mentasti E, Water Res., 37, 1619 (2003)

[2] Ajmal M, Rao RAK, Ahmad R, Khan MA, J. Hazard. Mater., 135(1-3), 242 (2006)

[3] Train RE, Quality criteria for water, USEPA, Washington, DC (1979)

[4] Krishnamurti CR, Vishwanathan P, Tata McGraw Hill, ND, India (1989)

[5] Lee SM, Kim WG, Laldawngliana C, Tiwari D, J. Chem. Eng. Data, 55(9), 3089 (2010)

[6] Borhakur S, Srivastava RC, J. Chem. Technol. Biotechnol., 51, 497 (1991)

[7] Porter DJ, Raymond LW, Anastasia GD, Arch. Fam. Med., 8, 386 (1999)

[8] Weckhuysen BM, Wachs IE, Schoonheydt RA, Chem. Rev., 96(8), 3327 (1996)

[9] Rao M, Parwat AV, Bhole AG, Waste Manage., 22, 821 (2002)

[10] Wu YH, Jiang L, Mi XM, Li B, Feng SX, Korean J. Chem. Eng., 28(3), 895 (2011)

[11] Baisakh PC, Patnaik SN, Ind. J. Environ. Healt., 44, 189 (2002)

[12] Singh RS, Singh VK, Mishra AK, Tiwari PN, Singh UN, Sharma YC, J. Appl. Sci. Environ. Sanita., 3, 129 (2008)

[13] Rao M, Parwate AV, Bhogle AG, Waste Manage., 22, 821 (2002)

[14] Singh AK, Singh DP, Pandey KK, Singh VN, J. Chem.Technol. Biotechnol., 42, 39 (1998)

[15] Vogel AI, Textbook of Quantitative Inorganic Analysis (4th Ed.), ELBS, Longman (1978)

[16] Standard Methods for the Examination of Water and Wastewater, 15th Ed., A.P.H.A., Washington, D.C. (1980)

[17] Indian Standard Methods for Chemical Analysis of Fire clay and Silica Refractory Materials, IS 1527 (1960)

[18] Taty-Costodes VC, Fauduet H, Porte C, Delacroix A, J. Hazard. Mater., 105(1-3), 121 (2003)

[19] Krishnamoorthy A, Juliet JC, Ind. J. Chem., 43A, 45 (2004)

[20] Singh RS, Singh VK, Tiwari PN, Singh UN, Sharma YC, The Open Environ. Eng. J., 2, 30 (2009)

[21] Mondal MK, Korean J. Chem. Eng., 27(1), 144 (2010)

[22] Mondal MK, Singh RS, Kumar A, Prasad BM, Korean J. Chem. Eng., 28(6), 1386 (2011)

[23] Rengaraj S, Yeon KH, Moon SH, J. Hazard. Mater., 87(1-3), 273 (2001)

[24] Bhattacharya AK, Venkobachar C, J. Environ. Eng., 110, 110 (1984)

[25] Weng CH, J. Environ. Eng., 128, 716 (2002)