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The conventional method of treating pulp and paper mill effluent involves the biological oxidation by bacterial action of aerobic and anaerobic conditions and aerobic lagooning method, which are less efficiency of removing COD. To overcome the drawbacks of the existing treatment process, in the present work an attempt has been made to study the electro oxidative destruction of the pulp and paper mill effluent using an electrochemical method and the effect of various parameters such as concentration of supporting electrolytes, current densities, flow rates of electrolyte and reservoir volumes of the effluent were conducted. From the experimental results it is observed that the rate of reduction of COD of the effluent increased with an increase in the supporting electrolyte (sodium chloride) concentration, current density where as it decreased with increase in the reservoir volume and the flow rate of electrolyte. The residence time distributions studies have also been conducted to study the behavior of the electrochemical reactor.
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Tom
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37--41
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Bibliogr. 20 poz., rys., tab.
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autor
autor
autor
autor
autor
autor
- Coimbatore Tamilnadu, Department of Chemical Engineering, Coimbatore Institute of Technology, Professor and Head, India, uksen2003@yahoo.co.in
Bibliografia
- 1. Fontanier, V., Farines, V., Albet, J., Baig, S. & Molinier, J. (2006). Study of catalyzed ozonation for advanced treatment of pulp and paper mill effluents. Water Res., 40, 303–310. DOI:10.1016/J.WATRES.2005.11.007.
- 2. Wang, B., Kong, W. & Ma, H. (2007). Electrochemical treatment of paper mill wastewater using three-dimensional electrodes with Ti/Co/SnO2-Sb2O5 anode, J. Hazard. Mater., 146, 295–301, DOI:10.1016 /J.JHAZMAT. 2006.12.031.
- 3. Amat, A.M., Arques, A., Lopez, F. & Miranda, M.A. (2005). Solar photo-catalysis to remove paper mill wastewater pollutants. Solar Energy, 79, 393–401. DOI:10.1016/J.SOLENER.2005.02.021.
- 4. Kim, S., Geissen, S. & Vogelpohl, A. (1997). Landfill leachate treatment by a photoassisted fenton reaction, Water Sci. Technol. 35, 239. DOI:10.1016/J.WATRES.2003.08.007.
- 5. Wong, S.S., Teng, T.T., Ahmada, A.L., Zuhairi, A. & Najafpour, G. (2006). Treatment of pulp and paper mill wastewater by poly acrylamide (PAM) in polymer induced flocculation, J. Hazard. Mater., 135, 378–388. DOI:10.1016/j.jhazmat.2005.11.076.
- 6. Chiang, L., Chang, J. & Wen, T. (1995). Indirect oxidation effect in electrochemical oxidation treatment of landfill leachate, Water Res. 29, 671. DOI:10.1016/0043-1354(94)00146-X.
- 7. Shen, Z.M., Yang, Hu, X.F., Lei, Y.M., Ji, X.L., Jia, J.P., & Wang, W.H. (2005), Dual electrodes oxidation of dye wastewater with gas diffusion cathode, Environ. Sci. Technol. 39, 1819–1826. DOI: 10.1021/es901269s.
- 8. Panizza, M., Bocca, C. & Cerisola, G. (2005). Electrochemical treatment of wastewater containing polyaromatic organic pollutants, Water Res. 34, 2601–2605. DOI: 10.1021/es049730n.
- 9. Fahidy, T.Z. (1985). Principles of Electrocheical reactor analysis, Elsevier, Amsterdam, 136–140. www.fkit.hr/files/dodiplomski/stari/C.
- 10. Walsh, F.C. (2001), Electrochemical technology for environmental treatment and clean energy conversion, Pure Appl. Chem., 73, 12, 1819–1837. DOI:10.1351/pac200173121819.
- 11. Ugurlu, M., Karaoglu, M.H. & Kula ,I. (2006). Experimental investigation of chemical oxygen demand, lignin and phenol removal from paper mill effluents using three-phase three-dimensional electrode reactor, Polish J. of Environ. Stud., 15, 647–654.
- 12. Mustoe, L.H. & Wragg, A.A. (1981), Effects of flow and electrical arrangement on the performance of some simple electrochemical reactor systems, J. Chem. Technol. Biotechnol., 31, 317–326, DOI: 10.1002/jctb.503310143.
- 13. Levenspiel, O. (1999). Chemical Reaction Engineering, John Wiley & Sons, New York. http://khup.com/keyword/chemical-reaction-engineering-levenspiel.html.
- 14. Dara, S.S, (1991).A Text Book of experiments and calculations - Engineering chemistry; Chand .S.and company Ltd., New Delhi. http://khup.com/keyword/engineering-chemistry-s-chand-publications.html.
- 15. APHA (1995), Standard Methods for the Examination of Water and Wastewater. http://top-pdf.com/apha-2120-f.html.
- 16. Dümmling, S., Eichhorn, E., Schneider, S., Speiser, B., Würde, M. (1996). Recycling of the Supporting Electrolyte Tetra(n-butyl)ammonium Hexafluorophosphate from Used Electrolyte Solutions, Current Separations, 15, 53–56. http://www.currentseparations.com/issues/15-2/cs15-2b.pdf.
- 17. Nassar, M.M., Fadaly, O.A. & Sedahmed, G.H. (1983), A new electrochemical technique for bleaching cellulose pulp, J. Appl. Electrochem., 13, 663–667, DOI: 10.1007/BF00617824.
- 18. Alverez-Gall Bergos, A. & Pl Etch Er, D. (1999), The removal of low level organics via hydrogen peroxide formed in a veticulated vitreous carbon cathode cell. Part: The removal of phenols and related compounds from aqueous effluents, Electrochim. Acta, 44, 2483. DOI:10.1016/S0043-1354(01)00147-6.
- 19. Chen, X., Ch En, G.H. & Yu E, P.L. (2000), Separation of pollutants from restaurant wastewater by electrocoagulation, Sep. Purif. Technol., 19, 65. Doi:10.1016/S1383-5866(99)00072-6.
- 20. Raghu, S. & Ahmed Basha, C. (2007), Electrochemical treatment of Procion Black 5B using cylindrical flow reactor – A pilot plant study, J. Hazard. Mater. B139, 381–390, DOI:10.1016/j.jhazmat. 2006.06.082.
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Bibliografia
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bwmeta1.element.baztech-article-BPS3-0020-0041