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Cyanide removal simulation from wastewater in the presence of titanium dioxide nanoparticles

  • Received : 2016.03.15
  • Accepted : 2016.11.21
  • Published : 2017.03.25

Abstract

One of the methods of removing cyanide from wastewater is surface adsorption. We simulated the removal of cyanide from a synthetic wastewater in the presence of Titanium dioxide nano-particles absorbent uses VISUAL MINTEQ 3.1 software. Our aim was to determine the factors affecting the adsorption of cyanide from synthetic wastewater applying simulation. Synthetic wastewater with a concentration of 100 mg/l of potassium cyanide was used for simulation. The amount of titanium dioxide was 1 g/l under the temperature of $25^{\circ}C$. The simulation was performed using an adsorption model of Freundlich and constant capacitance model. The results of simulation indicated that three factors including pH, nanoparticles of titanium dioxide and the primary concentration of cyanide affect the adsorption level of cyanide. The simulation and experimental results had a good agreement. Also by increasing the pH level of adsorption increases 11 units and then almost did not change. An increase in cyanide concentration, the adsorption level was decreased. In simulation process, rising the concentrations of titanium dioxide nanoparticles to 1 g/l, the rate of adsorption was increased and afterward no any change was observed. In all cases, the coefficient of determination between the experimental data and simulation data was above 0.9.

Keywords

Acknowledgement

Supported by : Kharazmi University

References

  1. Aber, S., Salari, D. and Ayoubi Feiz, B. (2008), "Equilibrium isotherm and kinetic studies for the uptake of copper ion onto almond shell", Proceedings of the 12th Iranian Chemical Engineering National Congress, Sahand University of Technology, Tabriz, Iran, October.
  2. Barakat, M.A. (2005), "Adsorption behavior of copper and cyanide ions at TiO2-solution interface", Colloid Interf. Sci., 291(2), 345-352. https://doi.org/10.1016/j.jcis.2005.05.047
  3. Chiang, K., Amal, R. and Tran, T. (2003), "Photocatalytic oxidation of cyanide: Kinetic and mechanistic studies", Molecular Catalysis A: Chemical, 193(1-2), 285-297. https://doi.org/10.1016/S1381-1169(02)00512-5
  4. Dai, X., Simons, A. and Breuer, P. (2012), "A review of copper cyanide recovery technologies for the cyanidation of copper containing gold ores", Mineral. Eng., 25(1), 1-13. https://doi.org/10.1016/j.mineng.2011.10.002
  5. Dash, R.R. and Gaur, A.B. (2009), "Cyanide in industrial wastewaters and its removal: A review on biotreatment", Hazard. Mater., 163(1), 1-11. https://doi.org/10.1016/j.jhazmat.2008.06.051
  6. Dash, R.R., Balomajumder, C. and Kumar, A. (2009), "Removal of cyanide from water and wastewater using granular activated carbon", Chem. Eng., 146, 408-413 https://doi.org/10.1016/j.cej.2008.06.021
  7. Davoudi, M. (2010), "Interactions of Phosphate and Ion on Geothite", Ph.D. Dissertation; University of Tarbiat Modares, Tehran, Iran.
  8. Djeribi, R. and Hamdani, O. (2008), "Sorption of copper from aqueouse by ceder sawdust and crushed brick", Desalination, 225(1-3), 95-112. https://doi.org/10.1016/j.desal.2007.04.091
  9. EPA (2002), Chemical Identity Sodium Cyanide (NaCN), visited on 5 July, 2015. URL: www.Epa.gov/swercepp/ehs/profile/143339p.txt
  10. Farrokhi, M., Yang, J., Lee, S. and Shirzad Siboni, M. (2013), "Effect of organic matter on cyanide removal by illuminated titanium dioxide or zinc oxide nanoparticles", Environ. Health Sci. Eng., 11(23), 11-23. https://doi.org/10.1186/2052-336X-11-11
  11. Gupta, N., Balomajumder, C. and Agarwal, V.K. (2012), "Adsorption of cyanide ion on pressmud surface: A modeling approach", Chem. Eng., 191, 548-556. https://doi.org/10.1016/j.cej.2012.03.028
  12. Hohl, H. and Stumm, W. (1976), "Interaction of $Pb^{2+}$ with hydrous ${\gamma}-Al_2O_3$", Colloid Interf. Sci., 55(2), 281-288. https://doi.org/10.1016/0021-9797(76)90035-7
  13. Hayes, K.F. and Leckie, J.O. (1987), "Modeling ionic strength effects on cation adsorption of hydrous oxide/solution interfaces", Colloid Interf. Sci., 115(2), 564-572 https://doi.org/10.1016/0021-9797(87)90078-6
  14. Ijadpanah Saravi, H. (2010), "Synthesis of TiO2 Nano particle and application in wastewater treatment", Ms.C. Dissertation; Department of Environmental Mining Engineering, University of Tarbiat Modarres, Tehran, Iran.
  15. Ijadpanah-Saravy, H. Safari, M., Khodadadi-Darban, A. and Rezaei, A. (2014), "Synthesis of Titanium Dioxide Nanoparticles for Photocatalytic Degradation of Cyanide in Wastewater", Anal. Lett., 47(10), 1772-1782. https://doi.org/10.1080/00032719.2014.880170
  16. Khodadadi, A., Monjezi, H., Mehrpouya, H. and Dehghani, H. (2009), "Geochemical modeling of cyanide in tailing dam gold processing plant", Environ. Geol., 58(6), 1161-1166. https://doi.org/10.1007/s00254-008-1593-5
  17. Majidi, F. (2011), "Cyanide removal from industrial wastewater using electrocoagulation", Department of Environmental Health Engineering, University of Tarbiat Modares, Tehran, Iran.
  18. Moussavi, Gh. and Khosravi, R. (2010), "Removal of cyanide from wastewater by adsorption onto pistachio hull wastes: Parametric experiments, kinetics and equilibrium analysis", Hazard. Mater., 183(1-3), 724-730. https://doi.org/10.1016/j.jhazmat.2010.07.086
  19. Peral, J.E. and Domenech, X. (1992), "Photocatalytic cyanide oxidation from aqueous copper cyanide solutions over $TiO_2$ and ZnO", Chem. Technol. Biotech., 53(1), 93-96.
  20. Samiei, E., Khodadadi, A., Abdollahi, M. and Meshkini, M. (2012), "Cyanide absorption of talc mineral from the Gold processing plant dam's wastewater", Chem. Eng., 21-32.
  21. Standard 1053 (2009), Drinking water standard; Iranian National Standard, Tehran, Iran.

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