Modeling the sulfamethoxazole degradation by active chlorine in a flow electrochemical reactor

Palma‐Goyes, Ricardo E.; Sosa-Rodríguez, Fabiola S.; Rivera, Fernando F.; Vazquez‐Arenas, Jorge

doi:10.1007/s11356-021-16154-w

Cited by 6 publications

(3 citation statements)

References 30 publications

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“…In recent years, mathematical models based on CFD have been proposed to describe the theoretical chlorine production, considering the effects of operational conditions on the flow field, electrode kinetics, mass transport; and the influence of geometry in the potential distribution inside of the reaction zone. 24,25 Particularly, Palma Goyes et al 26,27 have developed comprehensive models to account for the effects of applied current density and flow rate on the HOCl formation on the Ti/RuO 2 -ZrO 2 -Sb 2 O 3 anode, which was used to study the degradation of a model component. It is essential to mention that there is a lack of studies devoted to optimizing the FM01-LC reactor for the production of this oxidant, out of all mentioned references.…”

Section: Nomenclaturementioning

confidence: 99%

“…Experimental measurement of chlorine species.-The experimental performance of two different reactor geometries were carried out in a batch recirculation tank configuration as described in Ref. 27 The operating conditions were selected according to previous experience of our research group, 1 l min −1 and 200 A m −2 .…”

Section: Avg Appmentioning

confidence: 99%

“…Production of active chlorine species was determined by the use of iodometry technique, where aliquots of 0.6 ml are mixed in a quartz cell with 0.1 M of KI, and 0.01 M (NH4) 6 Mo 7 O 24 •4H 2 O as an indicator. 26,27 Once the reagents are adequately mixed, the absorbance peaks are determined after 5 min of reaction, and correlated with the Beer-Lambert relationship to determine concentration.…”

Section: Avg Appmentioning

confidence: 99%

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Optimization of Active Chlorine Production in a Filter-Press Type Electrochemical Reactor through Continuum Modelling and Response Surface Methodology

Miranda-Alcántara,

Bonola,

Vazquez-Arenas

et al. 2024

J. Electrochem. Soc.

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This study proposes a methodology to optimize the design of an electrochemical flow-by reactor to increase the active chlorine production. The performances of various reactor configurations were evaluated using Computational Fluid Dynamics, starting from the dimensions of the well-known FM01-LC reactor channel (B=4 cm, L= 16 cm, and S=1 cm), increasing or decreasing each component by 25%. These conditions were calculated using a Box-Behnken design of experiments, screening out the above dimensions as parameters in addition to the volumetric flow, which was operated at two different rates: 1 and 5 L min-1. A surface response methodology (RSM) was utilized to optimize the response variables, and determine the best design parameters. The combined computational study herein proposed suggests that the optimization of the flow electrochemical reactor design is a compromise between the flow uniform distribution, and mass transfer. It is found that the optimization method used is adequate at the experimental level, since the optimized channel (0.01M) presents better performance than the conventional FM01-LC channel (0.002 M), after 60 min of experimental electrolysis. It is expected the current analysis will contribute to the development of new filter-press-type electrochemical reactors optimizing chlorine production for numerous applications.

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