Kinetic Modeling and Effect of Process Parameters on Selenium Removal Using Strong Acid Resin

N. Rajamohan, R. Rajesh Kannan, M. Rajasimman

Abstract


Heavy metal pollution due to the contamination of Selenium above the tolerable limit in the natural environment is a challenging issue that environmental scientists face. This study is aimed at identifying ion exchange technology as a feasible solution to remove selenium ions using 001x7 resin. Parametric experiments were conducted to identify the optimal pH, sorbent dose and speed of agitation. Selenium removal efficiency of 85% was attained at pH 5.0 with 100 mg/L selenium concentration. The increase in resin dose was found to increase removal efficiency. However, metal uptake decreased. The experiments on the effect of concentration proved the negative effect of higher concentrations of selenium on removal efficiency. The ion exchange process was proved to be optimal at an agitation speed of 200 rpm and a temperature of 35 °C. Pseudo second order model was found to fit the kinetic data very well compared to the pseudo-first order model and the pseudo second order rate constant was estimated as 8.725x10-5 g mg-1 min-1 with a solution containing 100 mg/L selenium.


Keywords


metal removal; kinetics; selenium; acid resin

Full Text:

PDF

References


P. M. Chapman, W. J. Adams, M. L. Brooks, C. G. Delos, S. N. Luoma, W. A. Maher, H. M. Ohlendorf, T. S. Presser, D. P. Shaw (eds) Ecological assessment of selenium in aquatic environment, SETAC press, Pensacola, FL, 2010

C. Hu, Q. Chen, G. Chen, J. Qu, “Removal of Se(IV) and Se(VI) from drinking water by coagulation, Separation and purification technology”, Vol. 142, pp. 65-70, 2015

M. R. Awual, M. M. Hasan, M. A. Khaleque, “Efficient selenium(IV) detection and removal from water by tailor-made novel conjugate adsorbent”, Sensors and Actuators B, Vol. 209, pp.194-202, 2015

F. Fu, Q. Wang, “A review of removal of heavy metal ions from wastewaters”, Journal of Environmental Management, Vol. 92, No. 3, pp. 407-418, 2011

M. A. Barakat, “New trends in removing heavy metals from industrial wastewater”, Arabian Journal of Chemistry, Vol. 4, No. 4, pp. 361-377, 2011

S. Soda, M. Kahiwa, T. Kagami, M. Kuroda, M. Yamashita, M. Ike, “Laboratory scale bioreactors for soluble selenium removal from selenium refinery waste water using anaerobic sludge”, Desalination, Vol. 279, pp. 433-438, 2011

N. Rajamohan, M. Dilipkumar, M. Rajasimman, “Parametric and kinetic studies on biosorption of mercury using modified Phoenix dactylifera biomass”, Journal of the Taiwan Institute of Chemical Engineers, Vol. 45, pp. 2622–2627, 2014

H. Khakpour, H. Younesi, M. M. Hosseini, “Two stage biosorption of selenium from aqueous solution using dried biomass of the baker’s yeast Saccharomyces cerevisiae”, Journal of Environmental Chemical Engineering, Vol. 2, No. 1, pp. 532-542, 2014

T. E. Kose, N. Ozturk, “Boron removal from aqueous solutions by ion-exchange resin: Column sorption–elution studies”, Journal of Hazardous Materials, Vol. 152, No. 2, pp. 744-749, 2008

P. E. Franco, M. T. Veit, C. E. Borba, G. D. C. Gonclaves, M. R. F. Kle, R. Bergamasco, E. A. Dasilva, Y. R. Suzaki, “Nickel(II) and zinc(II) removal using amberlite IR-120: ion exchange equilibrium and kinetics”, Chemical Engineering Journal, Vol. 221, pp. 426-435, 2013

Z. Xu, Y. Zhao, J. Shi, J. Lu, L. Cheng, M. Chen, “Adsorption of mono butyl phthalate from aqueous phase onto two macro porous anion exchange resin”, Journal of Chemistry, Vol. 2014, Article ID 689734, 2014

N. Rajamohan, “Parametric experiments and kinetic studies on the removal of Nickel using strong acid cation exchange resin 001x7”, Desalination and Water Treatment, Vol. 56, No. 9, pp. 2477-2484, 2015

Y. S. Ho, G. Mckay, “Pseudo-second order model for sorption processes”, Process Biochemistry, Vol. 34, No. 5, pp. 451-465,1999

E. Pehlivan, T. Altun, “The study of various parameters affecting the ion exchange of Cu2+, Zn2+, Ni2+, Cd2+ and Pb2+ from aqueous solution on Dowex 50 W synthetic resin”, Journal of Hazardous materials B, Vol. 134, No. 1-3, pp. 149-156, 2006

B. Pan, H. Qiu, B. Pan, G. Nie, L. Xiao, L. Lu, W. Zhang, Q. Zhang, S. Zheng, “Highly efficient removal of heavy metals by polymer supported nano sized hydrated Fe(III) oxides: Behaviour and XPS study”, Water Research, Vol. 44, No. 3, pp. 815-824, 2010

G. Moussavi, B. Barikbin, “Biosorption of chromium(VI) from industrial waste water onto pistachio hull waste biomass”, Chemical Engineering Journal, Vol. 162, pp. 893-900, 2010

O. Hamdaoui, “Removal of copper(II) from aqueous phase by Purolite C100-MB cation exchange resin in fixed bed columns: modeling”, Journal of Hazard Materials, Vol. 161, No. 2-3, pp. 737-746, 2009

B. Alyuz, S. Veli , “Kinetics and equilibrium studies for the removal of nickel and zinc from aqueous solutions by ion exchange resins”, Journal of Hazardous Materials , Vol. 167, No. 1-3, pp. 482-488, 2009

C. S. Gulipalli, B. Prasad, K. L. Wasewar, “Batch study, equilibrium and kinetics of adsorption of selenium using rice husk ash (RHA)”, Journal of Engineering, Science and Technology, Vol. 6,No. 5,pp. 586-605, 2011




eISSN: 1792-8036     pISSN: 2241-4487