Experimental and CFD modeling of the phosphorus removal attributed to glyphosate by a tubular electrocoagulation reactor using recycled perforated aluminum electrodes.
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| Title: | Experimental and CFD modeling of the phosphorus removal attributed to glyphosate by a tubular electrocoagulation reactor using recycled perforated aluminum electrodes. |
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| Authors: | Villalobos-Lara, A. Daniel1 (AUTHOR) advillalobos@utleon.edu.mx, Rivera, F. Fernando2 (AUTHOR) frivera@cideteq.mx, Páramo-Vargas, Javier1 (AUTHOR), Ruiz-Vera, Tania3 (AUTHOR), Gamiño-Arroyo, Zeferino4 (AUTHOR), Eloy-Munguía, Christian1 (AUTHOR), Álvarez-Rodriguez, Nancy V.1 (AUTHOR) |
| Source: | Journal of Applied Electrochemistry. Jul2025, Vol. 55 Issue 7, p1849-1869. 21p. |
| Subjects: | Tubular reactors, Current distribution, Glyphosate, Aluminum recycling, X-ray diffraction, Aluminum electrodes |
| Abstract: | In this work, an experimental and CFD analysis was conducted to study the removal of total phosphorus attributed to commercial glyphosate using an electrocoagulation process in a novel prototype of a tubular electrocoagulation reactor with perforated electrodes (anodes and cathodes) made from recycled aluminum. The effects of the initial glyphosate concentration, current density, aluminum dose, and electrolysis process time were analyzed in terms of total phosphorus removal efficiency. Experimental results demonstrated a total phosphorus removal efficiency of > 90% in less than 60 min, with an operating cost of < 1 USD m−3 for initial glyphosate concentrations of 100 and 50 mg L−1 (corresponding to 16 and 8 mg L−1 of total phosphorus concentration), considering an input flow rate of 2 L min⁻1 and a current density of 7.5 mA cm−2, with residual aluminum in the supernatant < 14 mg L−1. A potential reaction route was proposed to explain the removal of the phosphonic group from glyphosate, influenced by its interaction with the aluminum dose, based on the structural characterization of aluminum aggregates (flocs) by XRD. The CFD results highlighted the advantages of the geometrical arrangement in the tubular electrocoagulation reactor, including a quasi-homogeneous current distribution across the electrodes and enhanced mixing effects caused by the perforated electrodes. These findings were described through the species distribution inside the tubular reactor during the electrochemical treatment. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | In this work, an experimental and CFD analysis was conducted to study the removal of total phosphorus attributed to commercial glyphosate using an electrocoagulation process in a novel prototype of a tubular electrocoagulation reactor with perforated electrodes (anodes and cathodes) made from recycled aluminum. The effects of the initial glyphosate concentration, current density, aluminum dose, and electrolysis process time were analyzed in terms of total phosphorus removal efficiency. Experimental results demonstrated a total phosphorus removal efficiency of > 90% in less than 60 min, with an operating cost of < 1 USD m−3 for initial glyphosate concentrations of 100 and 50 mg L−1 (corresponding to 16 and 8 mg L−1 of total phosphorus concentration), considering an input flow rate of 2 L min⁻1 and a current density of 7.5 mA cm−2, with residual aluminum in the supernatant < 14 mg L−1. A potential reaction route was proposed to explain the removal of the phosphonic group from glyphosate, influenced by its interaction with the aluminum dose, based on the structural characterization of aluminum aggregates (flocs) by XRD. The CFD results highlighted the advantages of the geometrical arrangement in the tubular electrocoagulation reactor, including a quasi-homogeneous current distribution across the electrodes and enhanced mixing effects caused by the perforated electrodes. These findings were described through the species distribution inside the tubular reactor during the electrochemical treatment. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 0021891X |
| DOI: | 10.1007/s10800-025-02283-4 |
