The Influence of the Configuration of Two Electrochemical Reactors on the Process of Removing Atrazine from Water

Juan Nápoles-Armenta, Juan Antonio Vidales-Contreras, Luis Alonso Leyva-Soto, Edna Rosalba Meza-Escalante, Lourdes Mariana Díaz-Tenorio, Celestino García-Gómez, Edgardo Martínez-Orozco, Celia De La Mora-Orozco, Pablo Gortáres-Moroyoqui and Lilian Alejandra Salcedo-Gastelum
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Juan Nápoles-Armenta: CONACYT Chair Program, Faculty of Agronomy, Autonomous University of Nuevo León, General Escobedo, Nuevo León C.P. 66050, Mexico
Juan Antonio Vidales-Contreras: Faculty of Agronomy, Autonomous University of Nuevo León, General Escobedo, Nuevo León C.P. 66050, Mexico
Luis Alonso Leyva-Soto: CONACYT Chair Program, Direction of Natural Resources, Technological Institute of Sonora, Ciudad Obregón, Sonora C.P. 85000, Mexico
Edna Rosalba Meza-Escalante: Direction of Natural Resources, Technological Institute of Sonora, Ciudad Obregón, Sonora C.P. 85000, Mexico
Lourdes Mariana Díaz-Tenorio: Direction of Natural Resources, Technological Institute of Sonora, Ciudad Obregón, Sonora C.P. 85000, Mexico
Celestino García-Gómez: Faculty of Agronomy, Autonomous University of Nuevo León, General Escobedo, Nuevo León C.P. 66050, Mexico
Edgardo Martínez-Orozco: Academic Unit Arandas, Department of Environmental Engineering, Technological Institute José Mario Molina Pasquel y Henríquez, National Technological of Mexico, Arandas, Jalisco C.P. 47180, Mexico
Celia De La Mora-Orozco: Department of Integral Watershed Management, National Institute of Forestry, Agricultural and Livestock Research, Tepatitlán, Jalisco C.P. 47600, Mexico
Pablo Gortáres-Moroyoqui: Direction of Natural Resources, Technological Institute of Sonora, Ciudad Obregón, Sonora C.P. 85000, Mexico
Lilian Alejandra Salcedo-Gastelum: Direction of Natural Resources, Technological Institute of Sonora, Ciudad Obregón, Sonora C.P. 85000, Mexico

Sustainability, 2021, vol. 13, issue 9, 1-15

Abstract: In Mexico, atrazine is widely used in agriculture to control broadleaf weeds. The objective of this research was to compare atrazine removal in water and energy consumption between an up-flow cylinder electro-oxidation reactor (UCER) and an up-flow rectangular electro-oxidation reactor (URER) using the response surface methodology. In each reactor, two titanium (Ti) mesh electrodes (cathodes) and one Titanium-Lead Dioxide (Ti-PbO 2 ) mesh electrode (anode). Current intensity effects, electrolysis treatment time, and recirculation flow were evaluated. Synthetic water with 5 mg/L atrazine content was used. Optimum atrazine removal values were obtained at 2 A electric current, 180 min of treatment time, and 200 mL/min recirculation rate for both reactors: in these conditions an atrazine removal of 77.45% and 76.89% for URER and UCER respectively. However, energy consumption showed a significant difference of 137.45 kWh/m 3 for URER and 73.63 kWh/m 3 for UCER. Regarding energy efficiency, a 60% atrazine removal was reached in both reactors using less energy for UCER at (1.5 A–135 min–150 mL/min–25.8 kWh/m 3 ) and for URER at (0.66 A–135 min–150 mL/min–20.12 kWh/m 3 ).

Keywords: atrazine; electro-oxidation; treatment; water (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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