Adsorption Isotherms for Removal of Heavy Metal Ions (Copper and Nickel) from Aqueous Solutions in Single and Binary Adsorption Processes

Abstract

This study deals with the removal of single and binary heavy metals, which cause great problems in terms of the environment and human health, through very low cost, economical and easily obtainable materials. The purpose of this study is to investigate the single- and binary uptake of Copper (II) and Nickel (II) ions onto the Sepiolite in the terms of a thermodynamic perspective. For mono-component systems, the initial effluent concentration, mixing speed and temperature have been studied as a function of time to determine the conditions where the adsorbents show a great deal of affinity towards the Cu (II) and Ni (II) ions in aqueous solutions. Before the metal adsorption experiments, the Physical properties of Sepiolite were identified via Brunauer–Emmett–Teller (BET) analysis. The single metal ion uptake studies were performed at 20, 25, 30, and 35 °C. At equilibrium, the sorption data were individually shown to correlate well with the non-competitive Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich isotherms. Among the applied isotherm models, the one-component sorption values do fit the Langmuir isotherm best. The simultaneous and competitive uptake of Cu (II) and Ni (II) was assessed by the extended Langmuir and Freundlich isotherms. Both adsorption equations complied with the two-component sorption data perfectly. Single- and binary-sorption results unclose that the effect of Sepiolite to Cu (II) is greater than that of Sepiolite to Ni (II).

Keywords

• Individual and simultaneous adsorption
• Cu (II)
• Ni (II)
• Sepiolite
• Mono- and two-component adsorption

References

1. Siegel, F.R., "Environmental Geochemistry Of Potentially Toxic Metals", Berlin, Springer, 32: 155-182, (2002).
2. [2] Filiz, E., "Doğal kaynaklardan elde edilen adsorbanlarla sulardan ağır metal giderimi", The Degree of Master of Science Thesis, İstanbul Technical University Institute of Science and Technology, İstanbul, 123, (2007).
3. [3] Singh, R., Gautam, N., Mishra, A., Gupta, R., "Heavy metals and living systems: An overview", Indian Journal of Pharmacology, 43(3): 246-256, (2011).
4. [4] Everhart, J., "Engineering properties of nickel and nickel alloy", Springer Science & Business Media, 225-228, (2012).
5. [5] Ashton, W., "Nickel pollution", Nature, 237(5349): 46-47, (1972).
6. [6] Molla, Ş., "Sulu ortamda ikili ağır metal karışımlarının ayrılması ve geri kazanılması, The Degree of Master of Science Thesis, Yıldız Technical University Institute of Science and Technology, İstanbul, (2007).
7. [7] Verma, R., Dwivedi, P., "Heavy metal water pollution-a case study", Recent Research in Science and Technology, 5(5): 98-99, (2013).
8. [8] Lim, J., Tan, Y. Q., Valeri, L., Lee, J., Geok, P. P., Chia, S. E., Ong, C. N., Seow, W. J., "Association Between Serum Heavy Metals and Prostate Cancer Risk–A Multiple Metal Analysis", Environment International, 132: 105109, (2019).

9. [9] Ibigbami, T.B., Dawodu, F.A., Akinyeye, O.J., "Removal of heavy metals from pharmaceutical industrial wastewater effluent by combination of adsorption and chemical precipitation methods", American Journal of Applied Chemistry 4(1): 24-32, (2016).
10. [10] Yoo, J. C., Lee, C., Lee, J. S., Baek, K., "Simultaneous application of chemical oxidation and extraction processes is effective at remediating soil co-contaminated with petroleum and heavy metals", Journal of Environmental Management, 186: 314-319, (2017).
11. [11] Smara, A., Delimi, R., Chainet, E., Sandeaux, J., "Removal of heavy metals from diluted mixtures by a hybrid ion-exchange/electrodialysis process", Separation and Purification Technology, 57(1): 103-110, (2007).
12. [12] Abdulraheem, F. S., Al-Khafaji, Z. S., Hashim, K. S., Muradov, M., Kot, P., Shubbar, A. A., "Natural filtration unit for removal of heavy metals from water", IOP Conference Series: Materials Science and Engineering, 888(1): 012034, (2020).
13. [13] Tran, T. K., Chiu, K. F., Lin, C. Y., Leu, H. J., "Electrochemical treatment of wastewater: selectivity of the heavy metals removal process", International Journal of Hydrogen Energy, 42(45): 27741-27748, (2017).
14. [14] Muharrem, I., Ince, O.K., "An overview of adsorption technique for heavy metal removal from water/wastewater: A critical review", International Journal of Pure and Applied Sciences, 3(2): 10-19, (2017).
15. [15] Rashed, M.N., "Adsorption technique for the removal of organic pollutants from water and wastewater", Organic Pollutants-Monitoring, Risk and Treatment, 7: 167-194, (2013).
16. [16] Ayawei, N., Ebelegi, A.N., Wankasi, D., "Modelling and interpretation of adsorption isotherms", Journal of Chemistry, 17: 11-21, (2017).
17. [17] Foo, K.Y., Hameed, B.H., "Insights into the modeling of adsorption isotherm systems", Chemical Engineering Journal, 156(1): 2-10, (2010).
18. [18] LeVan, M.D., Vermeulen, T., "Binary Langmuir and Freundlich isotherms for ideal adsorbed solutions", The Journal of Physical Chemistry, 85(22): 3247-3250, (1981).
19. [19] Allen, S., Mckay, G., Porter, J. F., "Adsorption isotherm models for basic dye adsorption by peat in single and binary component systems", Journal of Colloid and Interface Science, 280(2): 322-333, (2004).
20. [20] Dada, A. O., Olalekan, A. P., Olatunya, A. M., Dada, O. J. I. J. C., "Langmuir, Freundlich, Temkin and Dubinin–Radushkevich isotherms studies of equilibrium sorption of Zn2+ unto phosphoric acid modified rice husk", IOSR Journal of Applied Chemistry, 3(1): 38-45, (2012).
21. [21] Inagaki, S., Fukushima, Y., Doi, H., Kamigaito, O., "Pore size distribution and adsorption selectivity of sepiolite", Clay Minerals, 25(1): 99-105, (1990).
22. [22] Langmuir, I., "A new adsorption isotherm", Journal of the American Chemical Society, 40: 1361-1403, (1918).
23. [23] Weber, T.W., Chakravorti, R.K., "Pore and solid diffusion models for fixed‐bed adsorbers", AIChE Journal, 20(2): 228-238, (1974).
24. [24] Freundlich, H., "Over the adsorption in solution", Journal of Physical Chemistry, 57: 385-471, (1906).
25. [25] Adamson, A.W., Gast, A.P., "Physical chemistry of surfaces", Interscience Publishers, New York, 150: 390-397, (1967).
26. [26] Haghseresht, F., Lu, G., "Adsorption characteristics of phenolic compounds onto coal-reject-derived adsorbents", Energy & Fuels, 12(6): 1100-1107, (1998).
27. [27] Temkin, M., "Kinetics of ammonia synthesis on promoted iron catalysts", Acta Physiochim, URSS, 12: 327-356, (1940).
28. [28] Dubinin, M., "The equation of the characteristic curve of activated charcoal", Doklady Akademii Nauk SSSR, 55: 327-329, (1947).
29. [29] Hobson, J.P., "Physical adsorption isotherms extending from ultrahigh vacuum to vapor pressure", The Journal of Physical Chemistry, 73(8): 2720-2727, (1969).
30. [30] Sheikhhosseini, A., Shirvani, M., Shariatmadari, H., “Competitive sorption of nickel, cadmium, zinc and copper on palygorskite and sepiolite silicate clay minerals”, Geoderma, 192: 249-253, (2013).
31. [31] Bağ, H., Türker, A.R., Lale, M., “Determination of Cu, Zn, Fe, Ni and Cd by flame atomic absorption spectrophotometry after preconcentration by Escherichia coli immobilized on sepiolite”, Talanta, 51(5): 1035-1043, (2000).
32. [32] Pagnanelli, F., Esposito, A., Vegliò, F., "Multi-metallic modelling for biosorption of binary systems", Water Research, 36(16): 4095-4105, (2002).
33. [33] Aksu, Z., Açıkel, Ü., Kutsal, T., "Application of multicomponent adsorption isotherms to simultaneous biosorption of iron (III) and chromium (VI) on C. vulgaris", Journal of Chemical Technology & Biotechnology: International Research in Process, Environmental AND Clean Technology, 70(4): 368-378, (1997).
34. [34] Welp, G., Brümmer, G., "Extended Freundlich isotherms for metal sorption in soils: Relations to soil and metal parameters", in Proceedings 5th International Conference on the Biogeochemistry of Trace Elements, Vienna, 350-351, (1999).