OPTIMISATION AND MODELING OF FLUORIDE REMOVAL BY ELECTROCOAGULATION IN A CONTINUOUS FLOW BIPOLAR REACTOR
DOI:
https://doi.org/10.4314/jfas.v13i2.8Keywords:
Electrocoagulation; Fluoride removal; Modeling; Optimization; continues flow.Abstract
In this study an experimental design was employed to investigate the effects of different operating conditions on the removal of fluoride by electrocoagulation with aluminum electrodes. Box-Behnken design was then used for optimizing and modeling the electrocoagulation process and for evaluating the effects and interactions of variables: current density (i, A/m2), flow rate (Q, mL/min), and initial fluoride concentration (C0, mg/L). The proposed model fitted very well with the experimental data. R2 adjusted correlation coefficients (AdjR2: 0.98) for fluoride removal efficiency showed a high significance of the model. The model predicted for a maximum removal of fluoride (95.07%) at the optimum operating conditions (120 A/m2, 120 mL/min and 30 mg/L) after the EC process was 94.76% at the same optimum operating conditions.
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References
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[14] C.Y. Hu, S.L. Lo, W.H. Kuan, Y.D. Lee. Removal of fluoride from semiconductor wastewater by electrocoagulation–flotation. Water Research, 39 (2005) 895–901.
[15] A. Erdem Yilmaz, Recep Boncukcuo˘glu, M. Muhtar Kocakerim. A quantitative comparison between electrocoagulation and chemical coagulation for boron removal from boron-containing solution. Journal of Hazardous Materials, 149 (2007) 475–481.
[16] Mohammad M. Emamjomeh, Muttucumaru Sivakumar, Ali Safari Varyani. Analysis and the understanding of fluoride removal mechanisms by an electrocoagulation/flotation (ECF) process. Desalination, 275 (2011) 102–106
[17] Jiantuan Ge, Jiuhui Qu, Pengju Lei, Huijuan Liu. New bipolar electrocoagulation–electroflotation process for the treatment of laundry wastewater. Separation and Purification Technology, 36 (2004) 33–39.
[2] Jun Zhu, Huazhang Zhao, Jinren Ni. Fluoride distribution in electrocoagulation defluoridation process. Separation and Purification Technology, 56 (2007) 184–191.
[3] Ana M. Ingallinella, Virginia A. Pacini, Rubén G. Fernández, Romina M. Vidoni , Graciela Sanguinetti. Simultaneous removal of arsenic and fluoride from groundwater by coagulation-adsorption with polyaluminum chloride. Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances and Environmental Engineering, 46:11 (2011) 1288-1296.
[4] G.L. He, S.R. Cao. Assessment of fluoride removal from drinking water by calcium phosphate systems. Fluoride, 29 (1996) 212–216.
[5] M. Pinon-Miramontes, R.G. Bautista-Margulis, A. Perez-Hernandez. Removal of arsenic and fluoride from drinking water with cake alum and a polymeric anionic flocculent. Fluoride, 36 (2003) 122–128.
[6] So-Ryong Chaea, Hiroshi Yamamurab, Keiichi Ikedac, Yoshimasa Watanabeb. Comparison of fouling characteristics of two different poly-vinylidene fluoride microfiltration membranes in a pilot-scale drinking water treatment system using pre-coagulation/sedimentation, sand filtration, and chlorination. Water research, 42 (2008) 2029 – 2042.
[7] P.I. Ndiayea, P. Moulin, L. Dominguez, J.C. Millet, F. Charbit. Removal of fluoride from electronic industrial effluent by RO membrane separation. Desalination 173, (2005) 25–32.
[8] Ching-Yao Hu, Shang-Lien Lo, Wen-Hui Kuan. Simulation the kinetics of fluoride removal by electrocoagulation (EC) process using aluminum electrodes. Journal of Hazardous Materials, 145 (2007) 180–185.
[9] N. Sanjeev Kumar, Sudha Goel. Factors influencing arsenic and nitrate removal from drinking water in a continuous flow electrocoagulation (EC) process. Journal of Hazardous Materials 173 (2010) 528–533
[10] Engracia Lacasa, Pablo Cañizares, Cristina Sáez, Francisco J. Fernández, Manuel A. Rodrigo. Removal of nitrates from groundwater by electrocoagulation. Chemical Engineering Journal, 171 (2011) 1012– 1017.
[11] E.S.Z. El-Ashtoukhy, T.M. Zewail, N.K. Amin. Removal of heavy metal ions from aqueous solution by electrocoagulation using a horizontal expanded Al anode. Desalination and Water Treatment. 20:1-3 (2010) 72-79.
[12] M. Kobya, E. Demirbas, U. Gebologlu, M.S. Oncel, Y. Yildirim. Optimization of arsenic removal from drinking water by electrocoagulation batch process using response surface methodology. Desalination and Water Treatment, (2013), DOI:10.1080/19443994.2013.769700.
[13] Ming, L., Yi, S.R., Hua, Z.J., Lei, B.Y.W., Ping, L., Fuwa, K.C.. Elimination of excess fluoride in potable water with coacervation by electrolysis using aluminium anode. Fluoride, 20 (1983) 54–63.
[14] C.Y. Hu, S.L. Lo, W.H. Kuan, Y.D. Lee. Removal of fluoride from semiconductor wastewater by electrocoagulation–flotation. Water Research, 39 (2005) 895–901.
[15] A. Erdem Yilmaz, Recep Boncukcuo˘glu, M. Muhtar Kocakerim. A quantitative comparison between electrocoagulation and chemical coagulation for boron removal from boron-containing solution. Journal of Hazardous Materials, 149 (2007) 475–481.
[16] Mohammad M. Emamjomeh, Muttucumaru Sivakumar, Ali Safari Varyani. Analysis and the understanding of fluoride removal mechanisms by an electrocoagulation/flotation (ECF) process. Desalination, 275 (2011) 102–106
[17] Jiantuan Ge, Jiuhui Qu, Pengju Lei, Huijuan Liu. New bipolar electrocoagulation–electroflotation process for the treatment of laundry wastewater. Separation and Purification Technology, 36 (2004) 33–39.
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Published
2021-02-09
How to Cite
BENDERRAH, T.; DJEDID, M.; NACEUR, M. W.; BENALIA, M. OPTIMISATION AND MODELING OF FLUORIDE REMOVAL BY ELECTROCOAGULATION IN A CONTINUOUS FLOW BIPOLAR REACTOR. Journal of Fundamental and Applied Sciences, [S. l.], v. 13, n. 2, p. 770–783, 2021. DOI: 10.4314/jfas.v13i2.8. Disponível em: https://jfas.info/index.php/JFAS/article/view/742. Acesso em: 30 jan. 2025.
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