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6CCVD Research

Parametric Mathematical Model of the Electrochemical Degradation of 2-Chlorophenol in a Flow-by Reactor under Batch Recirculation Mode

At a Glance

Section titled “At a Glance”
MetadataDetails
Publication Date2023-12-14
JournalWater
AuthorsAlejandro Regalado-MĂ©ndez, Guadalupe Ramos-HernĂĄndez, Reyna Natividad, Mario E. Cordero, Luis Gonzaga Alonso ZĂĄrate
InstitutionsUniversidad Popular AutĂłnoma del Estado de Puebla, Universidad Veracruzana
Citations2

Abstract

Section titled “Abstract”

2-Chlorophenol (2-CP) is a dangerous organic contaminant found in wastewater. In this work, 2.5 L of a 2-CP solution (1 mol/m3) was electrochemically treated in a flow-by reactor equipped with two boron-doped diamond electrodes (BDD) under batch recirculation mode for a period for 4 h, a current density of 0.14 A/cm2, a volumetric flow rate of 1 L/min, and pH = 7.3. In this work, a parametric mathematical model of the degradation efficiency of 2-CP was developed using an axial dispersion model and a continuous stirred tank for the flow-by reactor (FBR), which was constructed using a shell mass balance considering the dispersion and convection terms and the reservoir tank (CST), which was constructed using a mass balance of 2-CP. The parametric mathematic model of the electrochemical degradation of 2-chlorophenol was numerically resolved by employing the software package COMSOL MultiphysicsÂź V. 5.3, where a mass transfer equation for diluted species and a global differential equation represents the FBR and CST, respectively. The results indicate that the parametric mathematical model proposed in this research fits the experimental results, and this is supported by the index performance values such as the determination coefficient (R2 = 0.9831), the mean square error (MSE = 0.0307), and the reduced root-mean-square error (RMSE = 0.1754). Moreover, the degradation efficiency of 2-CP estimated by the proposed model achieves 99.06%, whereas the experimental degradation efficiency reached 99.99%, a comparative error of 0.93%. This corroborates the predictive ability of the developed mathematical model and the effectiveness of the employed electrooxidation process. Finally, a 0.143 USD/L total operating cost for the electrochemical plant was estimated.

Tech Support

Section titled “Tech Support”

Original Source

Section titled “Original Source”

References

Section titled “References”
  1. 2021 - Flexible CuS/TiO2 Based Composites Made with Recycled Bags and Polystyrene for the Efficient Removal of the 4-CP Pesticide from Drinking Water [Crossref]
  2. 2012 - Simultaneous Adsorption and Dechlorination of 2,4-Dichlorophenol by Pd/Fe Nanoparticles with Multi-Walled Carbon Nanotube Support [Crossref]
  3. 2008 - Adsorption of Phenolic Compounds on Low-Cost Adsorbents: A Review [Crossref]
  4. 2020 - Treatment of Effluents Containing 2-Chlorophenol by Adsorption onto Chemically and Physically Activated Biochars [Crossref]
  5. 1987 - Chemical Degradation of Chlorophenols with Fenton’s Reagent (Fe2+ + H2O2) [Crossref]
  6. 2019 - Kinetics of the Biodegradation of Phenol and 2-Chlorophenol in a Fixed Biofilm Reactor Using a Dewatered Sludge-Fly Ash Composite Ceramic Particle as a Supporting Medium [Crossref]
  7. 2003 - Photocatalytic Degradation of 2-Chlorophenol: A Study of Kinetics, Intermediates and Biodegradability [Crossref]
  8. 2019 - Electrochemical Reactors for Wastewater Treatment [Crossref]

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