Current density and residence time in the electrocoagulation process and its influence on Fe2+ reduction [Densidad de corriente y tiempo de residencia en el proceso de electrocoagulación y su influencia en la reducción de Fe+2]

Freddy Waldir Gómez Escobedo, Jorge Edinson Gómez Escobedo, Erick Alexander Choton Cipriano, Dagner Marvin Castañeda Hilario, César Pol Arévalo Aranda, Hans Roger Portilla Rodriguez, Aldo Roger Castillo Chung, Alexander Yushepy Vega Anticona


The present research work had as study variables the current density of 20, 40 and 80 mA/cm2 and residence times of 10, 20, 40 and 60 minutes, within these evaluation parameters values were taken of pH, conductivity and Fe2+ removal percentage before and after the electrocoagulation process of artisanal acid mine drainage samples (AMD), the amount of AMD sample per test was 350 mL per test, from the results obtained it could be observed that For the current density of 80 mA/cm2 and a time of 40 minutes, the highest percentage of removal was obtained (76.20%), likewise a minimum percentage of removal of 17.97% was obtained at 20 mA/cm2; The removal percentages are attributed to the effect of the current density of the electrocoagulation process, which allows increasing the initial pH values of the effluent, which in turn allows the formation of precipitates and co-precipitates, in this case of Fe2+.


Electrocoagulation, Acid Drainage, Current Density.

Full Text:



Arango Alvarado. La electrocoagulación: una alternativa para el tratamiento de aguas residuales. Revista Lasallista de Investigación, 2005, vol. 2, núm. 1, January-June. pp. 49-56.

Chen, Xueming, Chen, Guohua, Yue, Po Lock. Investigation on the electrolysis voltage of electrocoagulation. In: Chemical Engineering Science. 2002, Vol. 57, No. 13. pp. 2449 – 2455.

Ghosh, D, Solanki, Harshit, Purkait, Mihir. Removal of Fe(II) from Tap Water by Electrocoagulation Technique. Journal of hazardous materials. 2008, 155. 135-43. 10.1016/j.jhazmat.2007.11.042.

Lu, Jun & Li, Yan & Yin, Mengxuan & Ma, Xiaoyun & Lin, Shengling. (2015). Removing heavy metal ions with continuous aluminum electrocoagulation: A study on back mixing and utilization rate of electro-generated Al ions. Chemical Engineering Journal. 267. 10.1016/j.cej.2015.01.011.

Mollah, Mohammad & Schennach, Robert & Parga Torres, Jose & Cocke, David. Electrocoagulation (EC) – Science and Applications. Journal of hazardous materials. 2001. 84. 29-41. 10.1016/S0304-3894(01)00176-5.

Nariyan, Elham & Sillanpää, Mika & Wolkersdorfer, Christian. Electrocoagulation treatment of mine water from the deepest working European metal mine – Performance, isotherm and kinetic studies. Separation and Purification Technology. 2017. 177. 363-373. 10.1016/j.seppur.2016.12.042.

Nina, Meyla (2008). Evaluación de los métodos químicos y biogénico para el tratamiento de drenaje ácido de mina a escala de laboratorio. Tesis posgrado en Ciencias Ambientales. Universidad Nacional Mayor de San Marcos

Park, Sang-Min & Shin, Su-Yeon & Yang, Jung-Seok & Ji, Sang-Woo & Baek, Kitae. Selective Recovery of Dissolved Metals from Mine Drainage Using Electrochemical Reactions. Electrochimica Acta. 2015. 181. 10.1016/j.electacta.2015.03.085.

Yilmaz, Erdem The investigation of parameters affecting boron removal by electrocoagulation method. In: Journal of Hazardous Materials. 2005. Vol. 125, No. 1-3. pp.160-165.

Zhu, Jing & Wu, Fengchang & Pan, Xiangliang & Guo, Jianyang & Wens, Dongsheng. Removal of Antimony from Antimony Mine Flotation Wastewater by Electrocoagulation with Aluminum Electrodes. Journal of environmental sciences (China). 2011. 23. 1066-71. 10.1016/S1001-0742(10)60550-5.



  • There are currently no refbacks.

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.


Indexed in:



Licencia de Creative Commons
Journal of Sciences and Engineering is licensed under a Creative Commons Attribution 4.0 Internacional License .

Journal of Sciences and Engineering is an Open Access, peer-reviewed journal published by CINCADER Publishing®, Lima, Peru.

The views expressed by the authors do not necessarily reflect the viewpoint of the Editor or the Publisher.

All credits and honors to PKP for their OJS.