Bioadsorption of Cd (II) from Contaminated Water on Treated Sawdust: Adsorption Mechanism and Optimization


Sawdust (SD) a very low cost material has been utilized as adsorbent material for the removal of Cd (II) from aqueous solutions after treatment with mono methylol urea (MMU) in the presence of zinc chloride as a catalyst to form MMU-SD. The reaction of MMU-SD was carried out under different conditions including MMU/SD molar ratio, catalyst concentration, and reaction time and temperature. Adsorption studies have been carried out to determine the effect of agitation time, pH, adsorbent and adsorbate concentrations on the adsorption capacity of Cd (II) ions onto MMU-SD. Langmuir, Freundlich and Redlich-Peterson isotherm models were applied in the adsorption studies. The experimental data were analyzed using various sorption kinetic models. The removal processes of Cd (II) onto MMU-SD particles could be well described by the pseudo-second order model. The maximum adsorption capacity of Cd(II) onto MMU-SD was 909 mg/g. Similarly, the Freundlich constant 1/n value was 0.45.

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A. Hashem, E. Adam, H. Hussein, M. Sanousy and A. Ayoub, "Bioadsorption of Cd (II) from Contaminated Water on Treated Sawdust: Adsorption Mechanism and Optimization," Journal of Water Resource and Protection, Vol. 5 No. 1, 2013, pp. 82-90. doi: 10.4236/jwarp.2013.51010.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Z. R. Holan, B. Volesky and I. Prasetyo, “Bio-Sorption of Cadmium by Biomass of Marine Algae,” Biotechnology and Bioengineering, Vol. 41, No. 8, 1993, pp. 819-825. doi:10.1002/bit.260410808
[2] K. H. Chong and B.Volesky, “Description of Two Metal Biosorption Equilibria by Langmuir-Type Models,” Biotechnology and Bioengineering, Vol. 47, No. 4, 1995, pp. 451-460. doi:10.1002/bit.260470406
[3] Y. C. Sharma, “Economic Treatment of Cd (II)-Rich Hazardous Waste by Indigenous Material,” Journal of Applied Interface Science, Vol. 173, No. 1, 1995, pp. 66-70. doi:10.1006/jcis.1995.1297
[4] B. Volesky and I. Prasetyo, “Cadmium Removal in Bio-sorption Column,” Biotechnology and Bioengineering, Vol. 43, No. 11, 1994, pp. 1010-1015. doi:10.1002/bit.260431103
[5] J. Barcicki, L. Pawlowski, A. Cichcki and L. Zagulski, “Physicochemical Methods for Water and Wastewater Treatment,” Pergamon, London, 1980, pp. 237-400.
[6] M. M. Nassar and M. S. El-Geundi, “Comparative Cost of Color Removal from Textile Effluents Using Natural Adsorbents,” Journal of Chemical Technology and Biotechnology, Vol. 50, No. 2, 1991, pp. 257-264. doi:10.1002/jctb.280500210
[7] A. Hashem, A. Abou-Okeil, A. El-Shafie and M. El-Sakhawy, “Grafting of High ?-Cellulose Pulp Extracted from Sunflower Stalks for Removal of Hg (II) from Aqueous Solution,” Polymer Plastics Technology and Engineering, Vol. 45, 2006, pp. 135-141.
[8] A. Hashem, A. Abdel-Lateff, S. Farag and D. M. Hussein, “Treatment of Alhagi Residues with Tartaric Acid for the Removal of Zn (II) Ions from Aqueous Solution,” Adsorption Science & Technology, Vol. 26, No. 9, 2008, pp. 661-678. doi:10.1260/026361708788251376
[9] A. Hashem, A. M. Azzeer and A. Ayoub, “Removal of Hg (II) Ions from Laboratory ?Wastewater onto Phosphorylated Haloxylon Ammodendron: Kinetic and Equilibrium Studies,” Polymer Plastics Technology and Engineering, Vol. 49, No. 14, 2010, pp. 1395-1404. doi:10.1080/03602559.2010.496423
[10] A. Hashem, H. A. Hussein, M. A. Sanousy, E. Adam and E. E. Saad, “Modified Monomethylolated Thiourea: Sawdust as a New Adsorbent for Removal of Hg (II) from Contaminated Water: Equilibrium Kinetic and Thermodynamic Studies,” Polymer Plastics Technology and Engineering, Vol. 50, No. 12, 2011, pp. 1220-1230. doi:10.1080/03602559.2011.566301
[11] A. A. Khalil, H. H. Sokker, A. Al-Anwar, A. Abd El-Zaher and A. Hashem, “Preparation, Characterization and Utilization of Amidoximated Poly (AN/MAA)-Grafted Alhagi Residues for the Removal of Zn (II) from Aqueous Solution,” Adsorption Science and Technology, Vol. 27, No. 4, 2009, pp. 363-383. doi:10.1260/026361709790252669
[12] A. I. Vogel, “A Text-Book of Quantitative Inorganic Analysis including Elementary Instrumental Analysis,” 3rd Edition, Longman Group Limited, London, 1972, pp. 402-404.
[13] S. C. Tsai and K. W. Juang, “Comparison of Linear and Non-Linear Forms of Isotherm Models for Strontium Sorption on a Sodium Bentonite,” Radioanalytical and Nuclear Chemistry, Vol. 243, No. 3, 2000, pp. 741-746. doi:10.1023/A:1010694910170
[14] I. Langmuir, “The Constitution and Fundamental Properties of Solids and Liquids,” Journal of American Chemical Society, Vol. 38, No. 11, 1916, pp. 2221-2295. doi:10.1021/ja02268a002
[15] K. R. Hall, L. C. Eagleton, A. Acrivos and T. Vermevlem, “Pore and Solid Diffusion Kinetics in Fixed Bed Adsorption under Constant Pattern Conditions,” Indian Engineering Chemistry Fundamentals, Vol. 5, No. 2, 1966, pp. 212-223. doi:10.1021/i160018a011
[16] H. Freundlish, “Over the Adsorption in Solution,” Journal of Physical Chemistry, Vol. 57, 1906, pp. 385-470.
[17] F. Haghseressht and G. Lu, “Sorption Studies onto Activated Carbon,” Energy Fuels, Vol. 12, 1998, pp. 1100-1107.
[18] M. J. Tempkin and V. Pyzhev, “Kinetics of Ammonia Synthesis on Promoted Iron Catalysts,” Acta Physicochimica URSS, Vol. 12, 1940, pp. 217-222.
[19] O. Redlich and D. L. Peterson, “A Useful Adsorption Isotherm,” Journal of Physical Chemistry, Vol. 63, No. 6, 1959, pp. 1024-1026. doi:10.1021/j150576a611
[20] H. C. Trivedi, V. M. Patel and R. D. Patel, “Adsorption of Cellulose Triacetate on Calcium Silicate,” European Polymer Journal, Vol. 9, No. 6, 1973, pp. 525-533. doi:10.1016/0014-3057(73)90036-0
[21] Y. S. Ho and G. McKay, “Sorption of Dye from Aqueous Solution by Peat,” Chemical Engineering Journal, Vol. 70, 1998, pp. 115-124.
[22] E. Tutem, R. Apak and C. F. Unal, “Adsorptive Removal of Chlorophenols from Water by Bituminous Shale,” Water Research, Vol. 32, No. 8, 1998, pp. 2315-2324. doi:10.1016/S0043-1354(97)00476-4
[23] V. J. P. Poots, G. McKay and J. J. Healy, “Removal of Basic Dye from Effluent Using Wood as an Adsorbent,” Journal of the Water Pollution Control Federation, Vol. 50, 1978, pp. 926-939.
[24] K. Nagarethinam and M. S. Mariappan, “Kinetics and Mechanism of Removal of Methylene Blue by Adsorption on Various Carbons: A Comparative Study,” Dyes and Pigments, Vol. 51, No. 1, 2001, pp. 25-40. doi:10.1016/S0143-7208(01)00056-0
[25] S. H. Chien and W. R. Clayton, “Application of Elovich Equation to the Kinetics of Phosphate Release and Sorption on Soils,” Soil Science Society of America Journal, Vol. 44, No. 2, 1980, pp. 265-268. doi:10.2136/sssaj1980.03615995004400020013x

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