Reduction of Toxic Cr6+ to Cr3+ in Presence of Non-Toxic Organic Substances

Mervette El-Batouti; Abdel-Moneim M. Ahmed

doi:10.14233/ajchem.2016.19130

Issue

Vol. 28 No. 3 (2016): Vol 28 Issue 3

Issue Published : December 5, 2015

This work is licensed under a Creative Commons Attribution 4.0 International License.

Reduction of Toxic Cr6+ to Cr3+ in Presence of Non-Toxic Organic Substances

https://doi.org/10.14233/ajchem.2016.19130

Mervette El-Batouti

Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt

Abdel-Moneim M. Ahmed

Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt

Corresponding Author(s) : Mervette El-Batouti

mervette_b@yahoo.com

Asian Journal of Chemistry, Vol. 28 No. 3 (2016): Vol 28 Issue 3
Article Published : December 5, 2015

Abstract

Activated carbon was used for the removal of hexavalent chromium (Cr⁶⁺) from wastewater. Different parameters affecting its removal from solution were investigated. These conditions include the concentration of organic acids, speed of rotating iron cylinder and the change in the physical properties of solution such as, density, viscosity and diffusion adsorption kinetics. Adsorption isotherms have been applied to study the kinetics of the adsorption behaviour and to determine the adsorption capacity of the absorbents. Regression analysis was investigated to study the mechanism of adsorption of the experiment and to identify the significance of the parameters used to enhance the adsorption capacity. The kinetics of the removal of toxic hexavalent chromium from acidified potassium dichromate solution using iron cylinder as reducing agent was studied. The effect of the presence of different organic acids e.g., acetic acid, chloroacetic acid, dichloroacetic acid, trichloroacetic acid, sulphosalisylic acid, citric acid and phthalic acid) upon the reaction was also investigated. The applicability of the adsorption process to Langmuir, Freundlich and kinetic-thermodynamic isotherm was examined.

Keywords

Chromuim(VI) Removal Diffusion controlled Temperature Non-toxic organic substances

El-Batouti, M., & Ahmed, A.-M. M. (2015). Reduction of Toxic Cr6+ to Cr3+ in Presence of Non-Toxic Organic Substances. Asian Journal of Chemistry, 28(3), 479–483. https://doi.org/10.14233/ajchem.2016.19130

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References

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D.O.P. Trebien, L. Bortolon, M.J. Tedesco, C.A. Bissani and F.A.O. Camargo, Pedosphere, 21, 84 (2011); doi:10.1016/S1002-0160(10)60082-3.

B. Bozzini, M. Amati, M.K. Abyaneh, L. Gregoratti and M. Kiskinova, J. Electroanal. Chem., 657, 113 (2011); doi:10.1016/j.jelechem.2011.03.032.

J.L. Gardea-Torresdey, K.J. Tiemann, V. Armendariz, L. Bess-Oberto, R.R. Chianelli, J. Rios, J.G. Parsons and G. Gamez, J. Hazard. Mater., 80, 175 (2000); doi:10.1016/S0304-3894(00)00301-0.

W.H. Hartford, Chromium Compounds In: Kirk-Othmer Encyclopedia of Chemical Technology, edn 3, vol. 6, p. 82 (1979).

R.A. Andrson, N.A. Bryden and M.M. Polansky, Am. J. Clin. Nutr., 41, 571 (1995).

H.K. Chuttani, P.S. Gupta, S. Gulati and D.N. Gupta, Am. J. Med., 39, 849 (1965); doi:10.1016/0002-9343(65)90105-1.

C.A. Black, Soil-Plant Relationships, John Wiley & Sons, New York (1968).

Waste Discharge Into The Marin Environment, Prepared in Collaboration with the Institute of Sanitary Engineering, Italy, Published Jointly with World Health Organization, Pergaman Press, Oxford (1982).

I. Villaescusa, S. Marti, C. Matas, M. Martine and J.M. Ribó, Environ. Toxicol. Chem., 16, 871 (1997); doi:10.1002/etc.5620160506.

B. Yu, Y. Zhang, A. Shukla, S.S. Shukla and K.L. Dorris, J. Hazard. Mater., 80, 33 (2000); doi:10.1016/S0304-3894(00)00278-8.

S. Triantafyllou and E. Christodolou, Clay Miner., 47, 567 (1999); doi:10.1346/CCMN.1999.0470503.

K.K. Panday, G. Prasad and V.N. Singh, J. Chem. Technol. Biotechnol., 34, 367 (1984); doi:10.1002/jctb.5040340703.

T.W. Weber and R.K. Chakravorti, AIChE J., 20, 228 (1974); doi:10.1002/aic.690200204.

R.E. Terbal, Mass Transfer Operations, McGraw-Hill Book Co., Singapore, edn 3 (1985).

J.P. Chen and M. Lin, Carbon, 39, 1491 (2001); doi:10.1016/S0008-6223(00)00277-3.

M.K. Awad, M.R. Mustafa and M.M.A. Elnga, J. Mol. Struct. THEOCHEM, 959, 66 (2010); doi:10.1016/j.theochem.2010.08.008.

E.A. Soltan, S.A. Nosier, A.Y. Salem, G.H. Mansour and G.H. Sedahmed, Chem. Eng. J., 91, 33 (2003); doi:10.1016/S1385-8947(02)00083-9.

P.A. Brown, S.J. Gill and S.J. Allen, Water Res., 34, 3907 (2000); doi:10.1016/S0043-1354(00)00152-4.

N.J. Wagner and R.J. Jula, Activated Carbon Adsorption, CRC Press (1981).

H.H. Abdel-Rahman and E.M. Abdel-Wahed, Hydrometallurgy, 129-130, 111 (2012); doi:10.1016/j.hydromet.2012.08.007.

Issue

Vol. 28 No. 3 (2016): Vol 28 Issue 3

Reduction of Toxic Cr6+ to Cr3+ in Presence of Non-Toxic Organic Substances

Corresponding Author(s) : Mervette El-Batouti

Abstract

Keywords

Full Article

Download Citation

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