پیوندهای مفید
آمار
| تعداد نشریات | 31 |
| تعداد شمارهها | 708 |
| تعداد مقالات | 6,651 |
| تعداد مشاهده مقاله | 9,178,791 |
| تعداد دریافت فایل اصل مقاله | 6,295,424 |
Isotherm and Kinetic Studies on Adsorption of Pb, Zn and Cu by Kaolinite | ||
| Caspian Journal of Environmental Sciences | ||
| مقاله 13، دوره 9، شماره 2، تیر 2011، صفحه 243-255 اصل مقاله (627.03 K) | ||
| نویسندگان | ||
| al. et1؛ Sh. Shahmohammadi-Kalalagh* 2 | ||
| 1O. Rafieyan*1, A. A. Darvishsefat2, S. Babaii1, A. Mataji1 | ||
| 20000 | ||
| چکیده | ||
| The feasibility of kaolinite used as a low-cost adsorbent for the removal of Pb(II), Zn(II) and Cu(II) from aqueous solutions was investigated. During the removal process, batch technique was used, and the effects of heavy metal concentration and contact time on adsorption efficiency at pH of 4.5, under a constant temperature of 20?1 ?C were studied. The experimental results were analyzed using four adsorption isotherm models; Freundlich, Langmuir, Temkin and Redlich-Peterson. Evaluating the correlation coefficients showed that the Redlich-Peterson isotherm described the data appropriable than others. The adsorption capacities (qm) from the Langmuir isotherm for Pb(II), Zn(II) and Cu(II) are found as 7.75 mg/g, 4.95 mg/g and 4.42 mg/g respectively. The effectiveness of kaolinite in the sorption of the three metals from aqueous system was Pb(II) > Zn(II) > Cu(II). Kinetic studies showed that a pseudo-second order model was more suitable than the pseudo first order model. It is concluded that kaolinite can be used as an effective adsorbent for removing Pb(II), Zn(II) and Cu(II) from aqueous solutions. | ||
| کلیدواژهها | ||
| Adsorption؛ Batch technique؛ Heavy metal ions؛ Kaolinite؛ Kinetic | ||
| مراجع | ||
|
Al-Jlil, S.A. and Alsewailem, F.D. (2009) Saudi Arabian clays for lead removal in wastewater. Appl. Clay Sci. 42, 671–674.
Ayoub, G.M., Semerjian, L., Acra, A., El Fadel, M. and Koopman, B. (2001) Heavy metal removal by coagulation with seawater liquid bittern. J. Environ. Eng. 127(3), 196–202.
Bansal, R.C. and Goyal, M. (2005) Activated Carbon Adsorption, Boca Raton, Crc Press Taylor Francis Group. Bhattacharya, K.G. and Gupta, S.S. (2008) Kaolinite and montmorillonite as adsorbents for Fe(III), Co(II) and Ni(II) in aqueous medium. Appl. Clay Sci. 4, 1-9.
Bhattacharya, A.K., Mandal, S.N. and Das, S.K. (2006) Adsorption of Zn(II) from aqueous solution by using different adsorbents. Chem. Eng. J. 123, 43–51.
Bohn, H.L., McNeal, B.L. and O'Connor, G.A. (1985) Soil Chemistry. Second edition. John Wiley and Sons, New York. Bose, P.,
Bose, M.A. and Kumar, S. (2002) Critical evaluation of treatment strategies involving adsorption and chelation for wastewater containing copper, zinc, and cyanide. Adv. Environ. Res. 7, 179–195.
Chantawong, V., Harvey, N.W. and Bashkin, V.N. (2003) Comparison of heavy metal adsorptions by Thai kaolin and ball clay. Water Air Soil Pollut. 148, 111-125.
Eckenfelder, W.W. (2000) Industrial Water Pollution Control, (McGraw-Hill Companies), pp. 451-457.
Freundlich, H.Z. (1906) Over The Adsorption in Solution. J. Phys. Chem., 57A, 385-470.
Guibal, E., Milot, C. and Tobin, M. (1998) Metal-anion sorption by chitosan beads: equilibrium and kinetic studies. Ind. Eng. Chem. Res. 37,1454–63.
Ho, Y.S. and McKay, G. (1999) Pseudo-second order model for sorption processes. Process Biochem. 34, 451–465. Ho, Y.S., Wase, D.A.J. and Forster, C.F. (1996) Removal of lead ions from aqueous solution using sphagnum moss peat as adsorbent. Water SA. 22(3), 219-224.
Jokela, P. and Keskitalo, P. (1999) Plywood mill water system closure by dissolved air flotation treatment. Water Sci. 254 Isotherm and Kinetic Studies on AdsorptionTechnol.40, 33–42.
Jüttner, K., Galla, U. and Schmieder, H. (2000) Electrochemical approaches to environmental problems in the process industry. Electrochimica Acta.45, 2575–2594.
Lagergren, S. (1898) About the theory of so-called adsorption of soluble substances, Kungliga Svenska Vetenskapsakademiens. Handlingar. 24, 1–39.
Langmuir, I. (1918) The Adsorption of Gases on Plane Surfaces of Glass, Mica, and Platinum. J.A.M. Chem. Soc. 40, 1361-1403.
Matis, K.A., Zouboulis, A.I., Lazaridis, N.K. and Hancock, I.C. (2003) Sorptive flotation for metal ions recovery. Int. J. Miner. Process.70, 99–108. Metcalf and Eddy, (2003) Wastewater Engineering: Treatment and Reuse. (McGraw Hill International Edition, New York). pp. 478-483.
Michael, H.J. and Jöse, L.V. (2007) Kinetic study of liquid-phase adsorptive removal of heavy metal ions by Almond Tree (TERMINALIA CATAPPA L.) leaves waste. Bull. Chem. Soc. Ethiop. 21(3), 349-362.
Potgieter, J.H., Vermaak, S.S. and Kalibantonga, P.D. (2006) Heavy metals removal from solution by palygorskite clay. Miner. Eng. 19(5): 463–470.
Redlich, O. and Peterson, D.L., (1959) A useful adsorption isotherm. J. Phys. Chem. 63, 1024–1029. Selim, H.M. and Amacher, M.C. (1997) Reactivity and Transport of Heavy Metals in Soils. CRC/Lewis Publishers, Boca Raton.
Semerjian, L. and Ayoub, G.M. (2003) High-pH-magnesium coagulation–flocculation in wastewater treatment. Adv. Environ. Res. 7, 389– 403.
Shammas, N.K. (2004) Coagulation and flocculation in Physicochemical Treatment Processes, edited by L.K. Wang, Y.T. Hung and N.K. Shammas, (Humana Press, New Jersey), pp. 103–140.
Singh, S.P., Ma, L.Q. and Harris, W.G. (2001) Heavy metal interaction with phosphatic clay: sorption and desorption behavior. J. Environ. Qual. 30(6),1961–1968.
Sparks, D.L. (1989) Kinetics of soil chemical processes. Academic Press, San Diego, CA.
Sparks, D.L. and Suarez, D.L. (eds) (1991) Rates of soil chemical processes. SSSA Spec Publ No. 27, Soil Sci.
Soc.Am.,Madison,Wl. Sposito, G. (1989) The Chemistry of Soils. Oxford University Press, Inc., New York.
Temkin, M.J. and Pyzhev, V. (1940) Kinetics of ammonia synthesis on promoted iron catalysts. Acta Physiochim. Urs. 12, 217-222.
Vimonses, V., Lei, Sh., Jin, B., Chow, W.K. and Saint, Ch. (2009) Kinetic study and equilibrium isotherm analysis of Congo Red adsorption by clay materials. Chem. Eng. J. 148, 354–364.
WHO. (1984) World Health Organisation, report, Guidelines for drinking water quality, Geneva.
Wingenfelder, U., Hansen, C., Furrer, G. and Schulin, R. (2005) Removal of heavy metals from mine water by natural zeolites. Environ. Sci. Technol. 39, 4606–4613.
Yang, X.J., Fane, A.G. and MacNaughton, S. (2001) Removal and recovery of heavy metals from wastewater by supported liquid membranes. Water Sci. Technol. 43, 341–348.
Yong, R.N., Mohamed, A.M.O. and Warkentin, B.P. (1992) Principles of contaminant Transport in Soils. Elsevier.
Zhu, S., Hou, H. and Xue, Y. (2008) Kinetic and isothermal studies of lead ion adsorption onto bentonite. Appl. Clay Sci. 40, 171-178. | ||
|
آمار تعداد مشاهده مقاله: 2,909 تعداد دریافت فایل اصل مقاله: 4,410 |
||