Adsorption Mechanism of Sodium Dodecyl Sulfate on Coagulating Precipitate in Treatment of Vat Dark Blue BO by Coagulation and Air-Flotation

Abstract:

Vat dark blue BO simulated wastewater was treated by Dissovled air flolation (DAF), the interaction of sodium dodecyl sulfate (SDS) and precipitate in the DAF process was investigated by thermodynamic methods. The adsorption isotherms of SDS on precipitate at pH 5.00 were determined at 30,35,40 and 45°C. The isosteric heat of sorption was calculated by the Clausius-Clapeyron equation. The results show that the isotherm of SDS on coagulation precipitate is not the normal style, the adsorption of SDS on precipitate is exothermic in nature and the isosteric heat of adsorption decreases with a increase in the equilibrium uptake of SDS on precipitate. The isosteric heat of sorption varies between-16.266 and-21.719kJ/mol as surface loading is between 3 and 11 mg/g. The values of isosteric heat of adsorption proves the primary adsorption of SDS on precipitation is physisorption.

• Periodical: Advanced Materials Research (Volumes 1033-1034)
• Pages: 364-368
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1033-1034.364
• Online since: October 2014
• Authors: Hong Yun Xia, Chang Qun Duan*, Wei Zhang, Ke Diao He
• Keywords: Adsorption, Air-Flotation, Precipitate, Sodium Dodecyl Sulfate, Vat Dark Blue BO

References

[1] G. Annadurai, L.Y. Ling, J.F. Lee, Adsorption of reactive dye from an aqueous solution by chitosan: isotherm, kinetic and thermodynamic analysis, J. Hazard. Mater. 152(2008) 337-346.

DOI: 10.1016/j.jhazmat.2007.07.002

[2] M. El Haddad, A. Regti, M.R. Laamari, Calcined mussel shells as a new and eco-friendly biosorbent to remove textile dyes from aqueous solutions, J. Taiwan. Ins. Chem. E. 45(2014) 533-540.

DOI: 10.1016/j.jtice.2013.05.002

[3] M. Kumr, R. Tamilarasan, V. Sivakumar, Adsorption of Victoria blue by carbon/Ba/alginate beads: Kinetics, thermodynamics and isotherm studies, Carbohydra. polym. 98(2013) 505-513.

DOI: 10.1016/j.carbpol.2013.05.078

[4] T. Santhi, S. Manonmanis, T. Smitha, Removal of malachite green from aqueous solution by activated carbon prepared from the epicarp of Ricinus communis by adsorption, J. Hazard. Mater. 179(2010) 178-186.

DOI: 10.1016/j.jhazmat.2010.02.076

[5] M. Kumr, R. Tamilarasan, Modeling studies: Adsorption of aniline blue by using Prosopis Juliflora carbon/Ca/alginate polymer composite beads, Carbohydra. polym. 92 (2013) 2171-2180.

DOI: 10.1016/j.carbpol.2012.11.076

[6] J. Rubio, M.L. Souza, R.W. Smith, Overview of flotation as a wastewater treatment technique, Miner. Eng. 15 (2002) 139-155.

[7] R.F. de Sena, R.F.P.M. Moreira, H. J. José, Comparison of coagulants and coagulation aids for treatment of meat processing wastewater by column flotation, Bioresour. Technol. 99 (2008) 8221-8225.

DOI: 10.1016/j.biortech.2008.03.014

[8] P. Somasundaran, S. Krishnakumar, Adsorption of surfactants and polymers at the solid-liquid interface, Colloids Surf., A. 123-124 (1997) 491-513.

DOI: 10.1016/s0927-7757(96)03829-0

[9] P. Somasundaran, L. Huang, Adsorptionraggregation of surfactants and their mixtures at solid-liquid interfaces, Adv. Colloid Interfac. 88 (2000) 179-208.

[10] M. V. Sureshkumar, C. Namasivayam, Adsorption behavior of Direct Red 12B and Rhodamine B from water onto surfactant-modified coconut coir pith, Colloids Surf., A. 317 (2008) 277-283.

DOI: 10.1016/j.colsurfa.2007.10.026

[11] F. Doulati Ardejani, Kh. Badii, N. Yousefi Limaee, Adsorption of Direct Red 80 dye from aqueous solution onto almond shells: Effect of pH, initial concentration and shell type, J. Hazard. Mater. 151 (2008) 730-737.

DOI: 10.1016/j.jhazmat.2007.06.048

[12] K.J. Hwang, S.H. Jung, D. W. Park, Heterogeneous ruthenium dye adsorption on nano-structured TiO2 films for dye-sensitized solar cells, Curr. Appl. Phys. 10 (2010) S184-S187.

DOI: 10.1016/j.cap.2009.11.068

[13] V.R. Sinija, H.N. Mishra, Moisture sorption isotherms and heat of sorption of instant (soluble) green tea powder and green tea granules, J. Food Eng. 86 (2008) 494-500.

DOI: 10.1016/j.jfoodeng.2007.10.026

[14] B. Nourhène, B. Neila, K. Mohammed, Sorptions isotherms and isosteric heats of sorption of olive leaves (Chemlali variety): Experimental and mathematical investigations, Food Bioprod Process. 86 (2008) 167-175.

DOI: 10.1016/j.fbp.2007.10.010

[15] Z. Rawajfih, N. Nsour, Thermodynamic analysis of sorption isotherms of chromium(VI) anionic species on reed biomass, J. Chem. Thermodynamics. 40 (2008) 846-851.

DOI: 10.1016/j.jct.2008.01.005

[16] A. M. Goula, T.D. Karapantsios, D.S. Achilias, Water sorption isotherms and glass transition temperature of spray dried tomato pulp, J. Food Eng. 85 (2008) 73-83.

DOI: 10.1016/j.jfoodeng.2007.07.015

[17] N. Barka, M. Abdennouri, M. EL Makhfouk, Removal of Methylene Blue and Eriochrome Black T from aqueous solutions by biosorption on Scolymus hispanicus L.: Kinetics, equilibrium and thermodynamics, J. Taiwan. Ins. Chem. E. 42 (2011) 320-326.

DOI: 10.1016/j.jtice.2010.07.004

[18] Ç. Doğar, A. Gürses, M. Açıkyıldız, Thermodynamics and kinetic studies of biosorption of a basic dye from aqueous solution using green algae Ulothrix sp., Colloids Surf., B. 76 (2010) 279-285.

DOI: 10.1016/j.colsurfb.2009.11.004

[19] E.A. Ferreiro, S.G. de Bussetti, Thermodynamic parameters of adsorption of 1, 10-phenanthroline and2, 2'-bipyridyl on hematite, kaolinite and montmorillonites, Colloids Surf., A. 301 (2007) 117-128.

DOI: 10.1016/j.colsurfa.2006.12.032

[20] A. Dąbrowski, Adsorption-from theory to practice, Adv. Colloid Interfac. 93 (2001) 135-224.

[21] M.G. Krivova, D. D. Grinshpan, N. Hedin, Adsorption of CnTABr surfactants on activated carbons, Colloids Surf., A. 436 (2013) 62-70.

DOI: 10.1016/j.colsurfa.2013.05.063