Browse > Article
http://dx.doi.org/10.12989/anr.2017.5.1.027

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

Safavi, Banafshe (Department of Civil Engineering at Kharazmi University)
Asadollahfardi, Gholamreza (Department of Civil Engineering at Kharazmi University)
Darban, Ahmad khodadadi (Department of Mining Engineering at Tarbiat Modarres University)
Publication Information
Advances in nano research / v.5, no.1, 2017 , pp. 27-34 More about this Journal
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
cyanide; titanium dioxide nanoparticles adsorption; simulation;
Citations & Related Records
연도 인용수 순위
  • Reference
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.   DOI
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.   DOI
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.   DOI
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.   DOI
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   DOI
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.   DOI
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.   DOI
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.   DOI
12 Hohl, H. and Stumm, W. (1976), "Interaction of $Pb^{2+}$ with hydrous ${\gamma}-Al_2O_3$", Colloid Interf. Sci., 55(2), 281-288.   DOI
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   DOI
14 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.
15 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.
16 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.   DOI
17 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.   DOI
18 Majidi, F. (2011), "Cyanide removal from industrial wastewater using electrocoagulation", Department of Environmental Health Engineering, University of Tarbiat Modares, Tehran, Iran.
19 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.   DOI
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.