Investigation of Adsorption of Cu (II) Heavy Metal with Bentonite

Year 2018, , 231 - 242, 28.12.2018

Halil Şenol , Ünsal Açıkel

https://doi.org/10.17798/bitlisfen.420210

Cited By: 2

Abstract

In this study, adsorption of undesirable copper (II) ion with bentonite
in industrial wastewater was investigated at different temperature, pH and time
intervals. Adsorption experiments were started with an adsorbent amount of 0.5
grams. Optimum pH determination experiments were carried out in the first stage
of the adsorption experiments. The optimum pH determined after the experiments
was determined as 5.0. Adsorption rates and adsorbed metal ions concentration
increased with increasing concentrations of starting copper (II) ions up to 25
mg / L and 500 mg / L in a medium containing 0.5 g of adsorbent. In the
isotherm studies, isotherms were plotted and isotherm constants were calculated
and it was clearly observed that the adsorption system, Langmuir and Freundlich
isotherms. When the Gibbs free energy (ΔG) values ​​calculated at different
temperatures are taken into consideration, it is observed that the copper (II)
ions have negative values, especially at low concentrations, and thus the
reactions take place spontaneously. The compatibility of the adsorption system
with the Langmuir and Freundlich isotherms was investigated, and it was
observed that the adenomatoid system adhered to Langmuir and Freundlich. Based
on these results, it is concluded that the amount of metal retained on the
surface increases with temperature increase. Values (n> 1) were obtained for
the experiments performed at each concentration of copper (II) ions (up to 500
mg / L at 25 mg / L).

Keywords

Copper (II) ion, Bentonite, Adsorption.

References

• 1. Smith, J. M., 1981. Chemical Engineering Kinetics. McGraw Hill Int. 327s.
• 2. Çokadar, H., İleri, R. 2003. Removal of Nickel (II) Ion from Sulfuric Acid by Granular Activated Carbon (GAK), Pamukkale University, Faculty of Education, Department of Science Education, İncilipınar, Denizli.
• 3. Karapınar, G., Kargı, F., 1998. Removal of Waste Textile Textile Materials by Adsorption Biological Treatment, Dokuz Eylül University, Department of Environmental Engineering, Tınaztepe, İzmir.
• 4. DeZuane, J. 1997. Handbook of Drinking Water Quality, John Wiley & Sons, Canada, 72-85.
• 5. Güler, Ç. 1997. Water Quality, Environmental Health Basic Resource Series, Ankara.
• 6. Üstün, N. (2005). Pelletization of fly ash and its use in zinc (II), copper (II) (I) and chromium (III) adsorption, Master Thesis, Institute of Science and Technology, 89s, Istanbul.
• 7. Anirudhan, TS, Manohar, DM, Noeline, BF, 2005. Adsorption performance of Al-pillared bentonite clay for the removal of cobalt (II) from aqueous phase, Department of Chemistry, University of Kerala, Kariavattom, Trivandrum-695 581, India .
• 8. Snell, F. D. and Snell, C. T., 1959, Colorimetric Methods of Analysis, 3rd edition, Vol. 2, D. Van Nostrand Company, Canada.
• 9. Sandell, E. B., 1961. Colorimetric Determination of Traces of Metals, 3rd ed., Interscience Publishers, USA, 388-409, 437-469, 522-553.
• 10. Aksu, Z. (1998), Biosorption of the heavy metals by microalgae in batch and continuous systems, In algae for wastewater treatment Springer-Verlag and Landes Bioscience, 2 (1): 37-53.
• 11. Harward, D. O., 1964. Chemisorption, Butterworths, London, vol: 5, 67-159, 60-260.
• 12. Ross, S., Oliver, J. P., 1964, On Physical Adsorption: John Wiley and Sons, vol. 6, 9-11, 17-18, 126-127, 137-139.
• 13. Weber, J. R., 1972. Physicochemical Processes for Water Quality Control, Willey Interference, USA.
• 14. Hassler, J. W., 1974. Purification with Activated Carbon, Chemical Publishing Co., USA, 390 p.
• 15. Treybal, R. E., 1980. Mass Transfer Operation, McGraw Hill, Kogakusha Ltd., Tokyo.
• 16. Oğuz, M., 1986. Physicochemical Treatment, Publication of TMMOB Chamber of Chemical Engineering, No.13, Ankara, 202 p.
• 17. Aksu, Z., Kutsal, T., 1990, A comparative study for biosorption characteristics of heavy metal ions with Chlorella vulgaris, Environmental Technology, 11, 979-987.
• 18. Bellot, J. C., Condoret, J. S., 1993. Modeling of liquid chromatography equilibria, Process Biochemistry, 28, 365-376.
• 19. Piero M. 1999. Adsorption. Official Gazette, 4 September 1988, Water Pollution Control Regulation, Number: 19919.
• 20. Şenol, H. 2015. Investigation of Adsorption of Dyes and Heavy Metals with Bentonite. Cumhuriyet University, Graduate School of Natural and Applied Sciences, Master Thesis, 84s, Sivas.
• 21. Canbaz, G.T. 2014. An Investigation of Comparative Adsorption of Metal Ion and Anionic Liquid with Activated Mud. Cumhuriyet University, Institute of Science, Master's thesis, 102s, Sivas.
• 22. Tekin, B. 2013. Investigation of Adsorption of Single and Dual Mixtures of Heavy Metal Ions with Different Clay Species, Cumhuriyet University, Institute of Science, Master's Thesis, 144s, Sivas.
• 23. Tok, S. 2009. Copper Adsorption with Natural Zeolite (Clinoptilolite), Yildiz Technical University Institute of Natural and Applied Sciences, 72, Istanbul.