Electrocoagulation system as treatment of galvanic wastewa
Abstract
This paper shows the second phase of the project “Implementation and Evaluation of an Electro-coagulation pilot test as Treatment of Wastewater to be reused. Case Study: Industrial Wastewater Galvanic source.” For its development, a prototype located at the University was evaluated and optimized from wastewater tests, implementing a percentage higher than 47 % to remove heavy metals, such as Cr+6, Pb and Zn by electro-coagulation. This study used to 10 L wastewater from Compañía Eléctrica Ltd. was used. Analysis was made by comparing Cu, Cr, Cr+6, Ni, Pb and Zn parameters before and after electro-coagulation treatment. There was a Cr 51,65 % decrease, where value achieved is below standards set regarding waste (Resolution No 1074 28 Oct. 1997), Ni 18,09 %, Pb 50 %, Zn 47,37 %, despite their removal have produced higher values than legislation parameters. There was a Cu 519,48 % increasing due to the plate used by treatment. Average values during tests were pH: 3,18; conductivity: 21,83 mS/m; and temperature: 48,5ºC. Although variable and parameter values are not generally within those given in accordance to literature with wastewater electro-coagulation, there was a significant reduction in the presence of metals studied.Downloads
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Equipo profesional de Propel Fundes Colombia. (2001). Guía de Buenas Prácticas para el Sector Galvanotécnia. Bogotá, D.C. Ministerio del Medio Ambiente y Fundes Colombia.
Compa-ía Eléctrica Ltda. (2010). Galvanización en caliente. Página consultada el 23 de marzo de 2010. En: http://www.companiaelectrica.com/paginas/galvanizado.1.html
Mollah M., Schennach R., Parga J. y Cocke D. (2001) Electrocoagulation (EC)– Science and applications; En: Journal of hazardous materials, Vol.84 Nº1, pp.29-41. http://dx.doi.org/10.1016/S0304-3894(01)00176-5
Galco S.A. (2010). Soluciones con ingeniería. Página consultada el 8 de abril de 2010. En: http://www.galcosa.com/lineas.html
Rajeshwar K. y Ibá-ez J., (1997). Environmental electrochemistry: Fundamentals and Applications in Pollution Abatement. San Diego, California: Academic Press Limited, 410p.
Holt P., Barton G. y Mitchell C. (2005) The future for electrocoagulation as a localised water treatment technology; En: Chemosphere, Vol. 59 Nº3, pp. 355-367. http://dx.doi.org/10.1016/j.chemosphere.2004.10.023
Restrepo A., Arango Á. y Garcés L. (2006) La Electrocoagulación: retos y oportunidades en el tratamiento de aguas; En: Producción + limpia, Vol.1 Nº2, pp.58-77.
Stephenson R. y Tennant B. (2003) New electrocoagulation process treats emulsified oily wastewater at Vancouver Shipyards; En: Environmental Science & Engineering Magazine. Disponible en: http://www.esemag.com/0103/electro.html
Aristizábal A y Bermúdez M. (2007) Estudio de la factibilidad de un sistema de electrocoagulación para tratamiento de aguas procedentes de lavanderías industriales con fines de reuso; Medellín. Trabajo de Grado (Ingeniero Químico).Universidad Pontificia Bolivariana; Facultad de Ingeniería.
Chen, G. (2004) Electrochemical technologies in wastewater treatment; En:Separation and Purification Technology, Vol.38 Nº1, pp.11–41.Mercado, I., http://dx.doi.org/10.1016/j.seppur.2003.10.006
Adhoum, N. y and Monser, L. (2004) Decolourization and removal of phenolic compounds from olive mill wastewater by electrocoagulation; En: Chemical Engineering and Processing, Vol.43 Nº10, pp.1281-1287. http://dx.doi.org/10.1016/j.cep.2003.12.001
Bayramoglu M., Mehmet K., Orhan T. y Mustafa S. (2004) Operating cost analysis of electrocoagulation of textile dye wastewater. En: Separation and Purification Technology, Vol.37 Nº2, pp.117–125. http://dx.doi.org/10.1016/j.seppur.2003.09.002
Kumar P., Chaudhari S., Khilar K. y Mahajan S. (2004) Removal of arsenic from water by electrocoagulation; En: Chemosphere, Vol.55 Nº9, pp.1245–1252. http://dx.doi.org/10.1016/j.chemosphere.2003.12.025
Holt P., Barton G. y Mitchell C. (1999) Electrocoagulation as a Wastewater Treatment; En: ANNUAL AUSTRALIAN ENVIRONMENTAL ENGINEERING RESEARCH. Proccedings The Third Annual Australian Environmental Engineering Research Event. Castlemaine, Victoria.
Mercado I., Reyes D. y Morante G. (2006) La electroquímica en función de la ingeniería ambiental. Método de electrocoagulación aplicado a un flujo continúo de residuos líquidos. En: Residuos. A-o Nº16 Nº94, pp. 62-65.
Chen L. y Sheng L. (2004) Treatment of chemical mechanical polishing wastewater by electrocoagulation: system performances and sludge settling characteristics. En:Chemosphere, Vol.54 Nº3, pp. 235–242. http://dx.doi.org/10.1016/j.chemosphere.2003.08.014
Adhoum N. (2004) Treatment of electroplating wastewater containing Cu2+, Zn2+ and Cr(VI) by electrocoagulation. En: Journal of Hazardous Materials, Vol.112 Nº3, pp.207-213. http://dx.doi.org/10.1016/j.jhazmat.2004.04.018
DEPARTAMENTO TÉCNICO ADMINISTRATIVO DEL MEDIO AMBIENTE, DAMA.(1997). Resolución Nº 1074 28 de Octubre de 1997. Bogotá, D.C.
Jiang J. (2002) Laboratory study of electro-coagulation–flotation for water treatment. En: Water Research, Vol.36 Nº16, pp.4064– 4078. http://dx.doi.org/10.1016/s0043-1354(02)00118-5
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