Electrocoagulation of model wastewater using aluminum electrodes

• Autorzy: Smoczyński L. , Muńska K. T. , Pierożyński B. , Kosobucka M.
• Języki publikacji: EN

Abstrakty

EN

Electrocoagulation makes an alternative method to chemical coagulation. This paper presents the results obtained during the electrocoagulation of the model wastewater using aluminum electrodes. The wastewater was treated by means of chronopotentiometric electrocoagulation process in a static system, at the constant current I = 0.3 A; therefore higher doses of electrocoagulant required longer electrocoagulation time. Changes in zeta potential, pH, turbidity, chemical oxygen demand (COD), suspended solids and total phosphorus concentrations in the treated wastewater were determined. A new method for determining the optimal dosage of the aluminum electrocoagulant was proposed through application of the third degree polynomial function rather than the parabolic equation. An increase in the electrocoagulant dose raised the share of sweep fl occulation in the studied treatment process, resulting in the effective removal over 90% of phosphorus compounds from the system.

Słowa kluczowe

EN

model wastewater; dose of aluminum electrocoagulant

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2012
• Tom: Vol. 14, nr 3
• Strony: 66--70
• Opis fizyczny: Bibliogr. 17 poz., rys., wykr., tab.

Twórcy

autor

Smoczyński L.

autor

Muńska K. T.

autor

Pierożyński B.

autor

Kosobucka M.

• University of Warmia and Mazury in Olsztyn, Department of Chemistry, Faculty of Environmental Management and Agriculture, Plac Łódzki 4, 10-957 Olsztyn, Poland,

Bibliografia

• 1. Smoczyński, L., Bukowski, Z., Wardzyńska, R., Załęska- -Chróst, N. & Dłużyńska, K. (2009). Simulation of coagulation, flocculation and sedimentation. Water Environ. Res. 81 (4), 348-356. DOI:10.2175/106143008X357174.
• 2. Smoczyński, L., Mróz, P., Wardzyńska, R., Załęska-Chróst, B. & Dłużyńska, K. (2009). Computer Simulation of Flocculation of Suspended Solids. Chem. Eng. J. 152, 146-150. DOI:10.1016/j.cej.2009.04.020.
• 3. Duan, J. & Gregory, J. (2003). Coagulation by hydrolysing metal salts. J. Colloid and Interf. Sci. 100-102, 475-502. DOI:10.1016/S0001-8686(02)00067-2.
• 4. Kobya, M., Sentruk, E. & Bayramoglu, M. (2006). Treatment of poultry slaughterhouse wastewaters by electrocoagulation. J. Hazard. Mater. B133, 172−176. DOI:10.1016/j. jhazmat.2005.10.007.
• 5. Armirtharajah, A. & Mills, M.K. (1982). Rapid-mix design for mechanism of Alum coagulation. J. Am. Water Work As. 74 (4), 210-216.
• 6. Rodrigo, M.A., Canizares, P., Buitron, C. & Saez, C. (2010). Electrochemical technologies for the regeneration of urban wastewater. Electrochim. Acta 55, 8160-8164. DOI:10.1016/j. electacta.2010.01.053.
• 7. Mollah, M.Y.A., Gomes, J.A.G., Das, K.K. & Cocke, D.L. (2010). Electrochemical treatment of Orange II dye solution - Use of aluminum sacrificial electrodes and floc characterization. J. Hazard. Mater. 174, 851-858. DOI:10.1016/j. jhazmat.2009.09.131.
• 8. Kannadasan, T., Sivakumar, V., Ahmed Basha, C., Arun, V. P., Senthilkumar, K. & Kannan, L. (2011). COD reduction studies of paper mill effluent using a batch recirculation electrochemical method. Pol. J. Chem. Tech. 13(3), 37-41. DOI 10.2478/v10026-011-0034-5.
• 9. Zaied, M. & Bellakhal, N. (2009). Electrocoagulation treatment of black liquor from paper industry. J. Hazard. Mater. 163, 995-1000. DOI:10.1016/j.jhazmat.2008.07.115.
• 10. Tchamango, S., Nanseu-Njiki, C.P., Ngameni, E., Hadjiev, D. & Darchen, A. (2010). Treatment of Dairy effluents by electrocoagulation using aluminium electrodes. Sci. Total Environ. 408, 947-952. DOI:10.1016/j.scitotenv.2009.10.02.
• 11. Groterud, O. & Smoczyński, L. (1986). Phosphorus removal from water by electrolysis. Water Res. 20(5), 667-669. DOI:10.1016/0043-1354(86)90032-1.
• 12. Chen, X., Chen, G. & Yue, P.L. (2000). Electrocoagulation and electroflotation of restaurant wastewaters. J. Environ. Eng. 126, 858-863. DOI:10.1061/(ASCE)0733-9372(2000)126:9(858)
• 13. Kobya, M. & Delipinar, S. (2008). Treatment of the baker’s yeast wastewater by electrocoagulation. J. Hazard.Mater. 154(1-3), 1133-1140. DOI:10.1016/j.jhazmat.2007.11.019.
• 14. Roa-Morales, G., Campos-Medina, E., Aguilera-Cotero, L., Bilyeu, B. & Barrera-Diaz, C. (2006). Aluminum electrocoagulation with peroxide applied to wastewater from pasta and cookie process. Sep. Purif. Technol. 54(1), 124-129. DOI:10.1016/j.seppur.2006.08.025.
• 15. Gurses, A., Yalcin, M. & Dogan, C. (2002). Electrocoagulation of some reactive dyes: a statistical investigation of some electrochemical variables. Waste Manage. 22, 491-499. DOI:10.1016/S0956-053X(02)00015-6.
• 16. Holt, P.K., Barton, G.W., Wark, M. & Mitchell, C.A. (2002). Quantitative comparison between chemical dosing and electrocoagulation. Colloids Surf. 211, 233-248. DOI:10.1016/ S0927-7757(02)00285-6.
• 17. Jiang, J.Q. & Lloyd, B. (2002). Progress in the development and use of ferrate(VI) salt as an oxidant and coagulant for water and wastewater treatment. Water Res. 36 (6), 1397-1408. DOI:10.1016/S0043-1354(01)00358-X.