The Study of Kinetic and Biosorption of Pb Ion by Rice Husk from Wastewater
محورهای موضوعی : Physical Chemistry & ElectrochemistryMohammad Ali Zare 1 , Masoomeh Emadi 2 , Razieh Karimi haghighi 3 , Mohammad Sadegh Moaddeli 4 , Masoud Edalati 5
1 - Young Researchers and Elite Club, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
2 - Young Researchers and Elite Club, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
3 - Young Researchers and Elite Club, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
4 - Young Researchers and Elite Club, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
5 - Young Researchers and Elite Club, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
کلید واژه: Rice Husk, Adsorption, Pb removal,
چکیده مقاله :
An agricultural waste i.e. rice husk has been used as a cheap adsorbent for the removal ofleadas a harmful heavy metal from contaminated water via adsorption. The adsorption capacity of rice husk was calculated by equilibrium models. The results showed that the adsorption process has the best accordance with Langmuir model. The kinetics of the adsorption was also investigated and obtained that the experimental data has the best fit with pseudo-second kinetic model. In this study, the effect of the adsorbent amount as well aspH value on the results was also investigated.
[1] L.A. Paim, R. Carvalho, W.C. Melo, A.E.F. Neto, Effect of silicon and phosphorous in heavy metal ground availability for the Mehlich-1 extractor, Ciência&Agrotecnologia 27 (2003) 780.
[2] V.K. Garg, R. Gupta, A.B. Yadav, R. Kumar, Dye removal from aqueous solution by adsorption on treated sawdust, Bioresour.Technol. 89 (2003) 121.
[3] B. Yasemin, A. Haluk, A kinetics and thermodynamics study of methylene blue adsorption on wheat shells, Desalination 194 (2006) 259.
[4] A.A. Ahmad, B.H. Hameed, N. Aziz, Adsorption of direct dye on palm ash: kinetic and equilibrium modeling, J. Hazard.Mater.141 (2007) 70.
[5] Matheickal and Yu, 1999; Juang and Shiau, 2000; Lacour et al.,2001; Yan and Viraraghavan, 2001.
[6] Gaballah, I. and G. Kilbertus, 1998.Recovery of heavy metals ions through decontamination of synthetics solutions and industrial effluents using modified barks. J. Geochem. Explor., 62: 241.
[7] Dos Santos, M.C., Lenzi, E., 2000. The use of aquatic macrophytes (Eichhorniacrassipes) as a biological filter in the treatment of lead contaminated effluents. Environ. Technol. 21, 615.
[8] M. Hasan, A.L. Ahmad, B.H. Hameed, Adsorption of reactive dye onto crosslinked chitosan/oil palm ash composite beads, Chem. Eng. J. 136 (2008) 164.
[9] Y.S. Ho, G. Mckay, Trans. Inst. Chem. Eng. 76 (1998) 313.
[10] I. Langmuir, Adsorption of gases on plain surfaces of glass mica platinum, J. Am.Chem. Soc. 40 (1918) 136.
[11] H.M.F. Freundlich, Over the adsorption in solution, J. Phys. Chem. 57 (1906)1385.
M. A. Zare et al. / Journal of Physical Chemistry and Electrochemistry Vol.2 No.1 (2013) 49-55 55
