Removal of Steriod Hormones by Activated Carbon Adsorption—Kinetic and Thermodynamic Studies


The mechanism, isotherms and kinetics of removal of two endocrine disrupting chemicals, 17β-estradiol (E2) and 17α-ethinyloestradiol (EE2) by activated carbon adsorption were investigated in an agitated non-flow batch adsorption studies. Mathematical models were used to describe the adsorption phenomenon with the kinetic and thermodynamic parameters evaluated using the adsorption equilibrium data at varying temperatures. Higher adsorption rates were achieved at acidic to neutral pH ranges, with the sorption kinetic data showing a good fit to the pseudo second order rate equation and the Langmuir adsorption isotherm model for both E2 and EE2. The Gibbs free energy were –16.68 kJ/mol and –17.34 kJ/mol for E2 and EE2 respectively. The values of enthalpy for both E2 (84.50 kJ/mol) and EE2 (90 kJ/mol) indicated a chemical nature of the sorption process. Both the isotherm and thermodynamic data obtained all supported the mechanism of adsorption of E2 and EE2 to be mainly chemisorptions supported by some physical attractions.

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A. O. Ifelebuegu, "Removal of Steriod Hormones by Activated Carbon Adsorption—Kinetic and Thermodynamic Studies," Journal of Environmental Protection, Vol. 3 No. 6, 2012, pp. 469-475. doi: 10.4236/jep.2012.36057.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] N. Nakada, T. Tanishima, H. Shinokara, H. Kiri and H. Takada, “Pharmaceutical Chemicals and Endocrine Disrupters in Municipal Wastewater in Tokyo and their Removal during Activated Sludge Treatment,” Water Research, Vol. 40, No. 17, 2006, pp. 3297-3303. doi:10.1016/j.watres.2006.06.039
[2] M. J. Gomez, M. J. Martinez Bueno, S. Lacorte, A. R. Fernandez-Alba and A. Aguera, “Pilot Survey Monitoring Pharmaceuticals and related Compounds in a Sewage Treatment Plant Located on the Mediterranean Coast,” Chemosphere, Vol. 66, No. 6, 2007, pp. 993-1002. doi:10.1016/j.chemosphere.2006.07.051
[3] A. O. Ifelebuegu, “The Fate and Behavior of Selected Endocrine Disrupting Chemicals in Full Scale Wastewater and Sludge Treatment Unit Processes,” International Journal of Environmental Science and Technology, Vol. 8, No. 2, 2011, pp. 245-254.
[4] K. Omotoyo, H. Daniel and T. Maya, “Review in removing Pharmaceuticals and Endocrine Disrupting Chemicals Compounds from Wastewater by Photocatalysis,” Biotechnology, Vol. 82, 2007, pp.121-134.
[5] A. J. Jafari, R. P. Abasabad and A. Salehzadeh, “Endocrine Disrupting Contaminants in Water Resources and Sewage in Hamadan City of Iran,” Iranian Journal of Environment Health Science and Engineering, Vol. 6, No. 2, 2009, pp. 89-96.
[6] K. J. Choi, S. G. Kim, C. W. Kim and S. H. Kim, “Effects of Activated Carbon Types and Service Life on the Removal of Endocrine Disrupting Chemicals: Amitrol, Nonyphenol and Bisphenol-A,” Chemosphere, Vol. 58, No. 11, 2005, pp. 1535-1545. doi:10.1016/j.chemosphere.2004.11.080
[7] A. O. Ifelebuegu, J. N. Lester, J. Churchley and E. Cartmell, “Removal of an Endocrine Disrupting Chemical (17alpha-Ethinyloestradiol) from Wastewater Effluent by Activated Carbon Adsorption: Effects of Activated Carbon Type and Competitive Adsorption,” Journal of Environmental Technology, Vol. 27, 2006, pp. 1343-1349. doi:10.1080/09593332708618748
[8] A. K. Kumar and S. V. Mohan, “Endocrine Disrupting Synthetic Estrogen (17α-Ethinyloestradiol) Removal from Aqueous Phase through Batch and Column Sorption Studies: Mechanistic and Kinetic Analysis,” Desalination, Vol. 276, 2011, pp. 66-74. doi:10.1016/j.desal.2011.03.022
[9] V. S. Muhandiki, Y. Shimizu, Y. A. F. Adou and S. Matsui, “Removal of Hydrophobic Micro_Organic Pollutants from Municipal Wastewater Treatment Plant Effluent by Sorption onto Synthetic Polymeric Adsorbent: Upflow Column,” Environmental Technology, Vol. 29, No. 3, 2008, pp. 351-361. doi:10.1080/09593330802102330
[10] E. K. Putra, R. Pranowo, J. Sunarso, N. Indraswati and S. Ismadji, “Performance of Activated Carbon and Bentonite for Adsorption of Amoxicillin from Wastewater: Mechanism, Isotherms and Kinectics,” Water Research, Vol. 33, No. 9, pp. 2419-2430.
[11] A. Rossner, S. S. Snyder and D. R. U. Knappe, “Removal of Emerging Contaminants of Concern by Alternative Adsorbent,” Water Research, Vol. 43, No. 15, pp. 3787-3796. doi:10.1016/j.watres.2009.06.009
[12] F. G. Braga, S. Pinto and M. C. G. Antunes, “Comparative Study of 17β-estradiol Removal from Aqueous Solutions Using Pine Bark and Almond Shell as Adsorbents,” Microchimica Acta, Vol. 173, No. 1-2, 2011, pp. 111-117. doi:10.1007/s00604-010-0531-x
[13] I. Ismail, S. Enas and D. Jamal, “Kinetics, Equilibruim and Thermodynamics of the Sorption of Tetrabromobisphenol A on Multiwalled Carbon Nanotubes,” Applied Surface Science, Vol. 256, No. 23, 2010, pp. 7246-7252. doi:10.1016/j.apsusc.2010.05.059
[14] A. O. Ifelebuegu and P. C. Ezenwa, “Removal of Endocrine Disrupting Chemicals in Wastewater Treatment by Fenton-Like Oxidation,” Water, Air and Soil Pollution, Vol. 217, 2011, pp. 213-220. doi:10.1007/s11270-010-0580-0
[15] W. K. Chan, J. Jouet, S. Heng, K. L. Yeung and J. Schrotter, “Membrane Contactor/Separator for an Advanced Ozone Membrane Reactor for Treatment of Recalcitrant Organic Pollutants in Water,” Journal of Solid State Chemistry, Vol. 189, 2012, pp. 96-100. doi:10.1016/j.jssc.2012.01.023
[16] J. Sin, S. Lam, A. R. Mohamed and K. Lee, “Degrading Endocrine Disrupting Chemicals from Wastewater by TiO2 Photocatalysis: A Review,” International Journal of Photoenergy, Vol. 2012, 2012, pp. 1-23. doi:10.1155/2012/185159
[17] ASTM Book of Standards, “Refractories, Activated Carbon, Advanced Ceramics,” American Society for the Testing of Materials, Philadelphia, 2005.
[18] Standing Committee of Analyst (SCA), “The Determination of Steroid Estrogens in Environmental and Wastewater Using Chromatography and Mass Spectrometery,” Environment Agency, Bristol, 2005.
[19] R. Kanda and J. Churchley, “Removal of Endocrine Disrupting Compounds during Conventional Wastewater Treatment,” Environmental Technology, Vol. 29 No. 3, 2008, pp. 315-323. doi:10.1080/09593330802099874
[20] M. Clara, B. Strenn, E. Saracevic and N. Kreuzinger, “Adsorption of Bisphenol-A, 17β-estradiole and 17αEthinylestradiole to Sewage Sludge,” Chemosphere, Vol. 56, No. 9, pp. 843-851. doi:10.1016/j.chemosphere.2004.04.048
[21] K. S. Kumar, S. V. Mohan and P. N. Sarma, “Sorptive Removal of Endocrine Disruptive Compound (Estriol, E3) from Aqueous Phase by Batch and Column Studies: Kinetic and Mechanistic Evaluation,” Journal of Hazardous Material, Vol. 164, 2009, pp. 820-828. doi:10.1016/j.jhazmat.2008.08.075
[22] S. V. Mohan, S. Shailaja, M. Rama Krishna and P. N. Sarma, “Adsorptive Removal of Phthalate Ester (Di-ethyl phthalate) from Aqueous Phase by Activated Carbon: A Kinetic Study,” Journal of Hazardous Materials, Vol. 146, No. 1-2, pp. 278-282. doi:10.1016/j.jhazmat.2006.12.020
[23] D. I. Mall, V. C. Srivastava and N. K. Agarwal, “Removal of Orange-G and Methyl Violet Dyes by Adsorption onto Bagasse Fly Ash-Kinetic Study and Equilibrium Isotherm Analyses,” Dyes and Pigments, Vol. 69, 2006, pp. 210-223. doi:10.1016/j.dyepig.2005.03.013
[24] M. H. Kalavathy, T. Karthikeyan, S. Rajgopal and L. R. Miranda, “Kinetics and Isotherm Studies of Cu(II) Adsorption onto H3PO4-Activated Rubber Wood Sawdust,” Journal of Colloid and Interface Science, Vol. 292, 2005, pp. 354-362. doi:10.1016/j.jcis.2005.05.087
[25] S. Langergren, “About the Theory of So-Called Adsorption of Soluble Substances,” Kungliga Svenska Vetenskapsakademiens Handlingar, Vol. 24 No. 4, pp. 1-39.
[26] Y. S. Ho, W. T. Chiu and C. C. Wang, “Regression Analysis for the Sorption Isotherms of Basic Dyes on Sugarcane Dust,” Bioresource Technology, Vol. 96, 2005, pp. 1285-1291. doi:10.1016/j.biortech.2004.10.021
[27] W. J. Weber and J. C. Morris, “Kinetics of Adsorption on Carbon from Solution,” Journal of the Sanitary Engineering Division, Vol. 89, 1963, pp. 31-40.
[28] K. Kumar and S. V. Mohan, “Removal of Naturral and Synthetic Endocrine Disrupting Estrogens by Multi-Walled Carbon Nanotubes (MWCNT) as Adsorbent: Kinetic and Mechanistic Evaluation,” Separation and Purification Technology, Vol. 87, 2012, pp. 22-30. doi:10.1016/j.seppur.2011.11.015
[29] Y. S. Al-Degs, M. I. El-Barghouthi, A. H. El-Sheikh and G. M. Walker, “Effect of Solution pH, Ionic Strength, and Temperature on Adsorption Behavior of Reactive Dyes on Activated carbon,” Dyes Pigments, Vol. 77, 2008, pp. 16-23. doi:10.1016/j.dyepig.2007.03.001
[30] I. Langmuir, “The Adsorption of Gases on the Plane Surfaces of Glass, Mica, and Platinum,” Journal of American Chemical Society, Vol. 40, 1918, pp. 1361-1403. doi:10.1021/ja02242a004
[31] H. M. F. Freundlich, “über Die Adsorption in L?sungen,” Zeitschrift fu¨r Physikalische Chemie, Vol. 57, 1906, pp. 385-470.

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