Document Type: Original Research Article

Authors

1 Department of Chemistry, Faculty of Scienc, University of Sistan and Balouchestan, Zahedan, Iran

2 Department of Chemical Engineering, Faculty of Engineering, University of Sistan and Balouchestan, Zahedan, Iran

Abstract

This work, the application of a surfactant-modified natural nano-clinoptilolite for the removal of several two valances heavy metal cations (i.e., Cu2+, Pb2+, Ni2+, Cd2+, Fe2+ and Zn2+) from aqueous media was discussed. Triton X-100 was used as modifier and to achieve maximum efficiency of adsorption; variables such as the concentration of surfactant, contact time, the working temperature and pH of sample solution were optimized. The results revealed that, the maximum adsorption was achieved at a solution with the pH of 6, containing 2 mL of triton X-100 and 2 g/L of clinoptilolite at 45 °C. The obtained selectivity series for the adsorption of cations were Pb2+>Cu2+>Cd2+>Ni2+ >Zn2+>Fe2+. The maximum adsorption capacity of the modified zeolite for Pb2+, Cu2+, Cd2+, Ni2+, Zn2+ and Fe2+ was 91.34, 85.71, 78.27, 76.18, 67.41 and 63.45 mg/g, respectively. The adsorption data were acceptably fitted to the both Freundlich and Langmuir isotherms.

Graphical Abstract

Keywords

[1] R. Davarnejad, Z. Karimi Dastnayi, Iran. J. Chem. Chem. Eng., 2018, 38, 267–281.

[2] R.K. Guatam, S.K. Sharma, S. Mahiya, M.C. Chattopadhyaya, Contamination of heavy metals in aquatic media: transport, toxicity and technologies for remediation, 2014, pp 1–24.

[3] M.E. Jimenez-Castaneda, D.I. Medina, Water, 2017, 9, 235.

[4] S. Wang, Y. Peng, Chem. Eng. J., 2010, 156, 11–24.

[5] O. Altin, H.Ö. Ozbelge, T. Doğu, J. Coll. Sci., 1988, 198, 130–140.

[6] D.W. Breck, Zeolite Molecular Sieves, Wiley, New York, 1974.

[7] K.D. Mondale, R.M. Carland, F.F. Aplan, Miner. Eng., 1995, 8, 535–548.

[8] R.M. Carland, F.F. Aplan, Miner. Metall Process., 1995, 11, 210.

[9] M.S. Joshi, P.M. Rao, Coll. Interface Sci., 1983, 95, 131–134.

[10] G. Blanchard, M. Maunaye, G. Martin, Water Res., 1984, 18, 1501–1507.

[11] K. Urum, T. Pekdemir, Chemosphere, 2004, 57, 1139–1150.

[12] CN. Mulligan, RN. Yong, BF. Gibbs Remediation technologies for metal contaminated soils and groundwater: an evaluation. Engineering Geology 60,193e207.

[13] T. Yousefi, H.R. Moazami, H.R. Mahmudian, M. Torab-Mostaedi, M.A. Moosavian, J. Water Environ. Nanotechnol., 2018, 3, 150–156.

[14] T. Yousefi, H.R. Mahmudian, M. Torab-Mostaedi, M.A. Moosavian, R. Davarkhah, Nucl. Technol. Radiat. Protect., 2017, 32, 25–36.

[15] M. Rahimi, J. Mahmoudi, Period. Polytechn. Chem. Eng., 2020, 64, 106–115.

[16] M. Korkmaz, C. Ozmetin, E. Ozmetin, sixteenth international water Technology  Conference, IWTC 16 (2012), Istanbul, Turkey, 2012.

[17] M. Arshadi, F. Salimi Vahid, J.W.L. Salvasian, M. Soleymanzadeh, Appl. Surface Sci., 2013, 280, 726–736.

[18] M. Ghiaci, M. Arshadi, M.E. Sedaghat, R.J. Kalbasi, A. Gil, J. Chem. Eng. Data, 2008, 53, 2701–2709.

[19] O. Alimohammadi, Adv. J. Chem. A, 2020, 3, 289–300.

[20] M. Arshadi, M.J. Amiri, M. Mousavi, Water Resources Indust., 2014, 6, 1–17.