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The degradation of azo colorants, such as pomegranate red dye (PGRD), was studied in bicarbonate-activated hydrogen peroxide (BAP). This research is concerned with the modeling and optimization of the BAP oxidization system by response surface methodology (RSM). We employed a full factorial design (FFD) was employed to analyze the influence of key process variables on the degradation efficiency of PGRD (η), including the mass of sodium bicarbonate (NaHCO3), the volume of hydrogen peroxide (H2O2), and the reaction temperature. The reduced second-order model demonstrates an excellent correlation with experimental response values of η, evidenced by a determination coefficient (R2) of 0.99. Additionally, performance indicators such as the mean absolute error (MAE) of 0.893 and root mean square error (RMSE) of 0.905 confirm that the reduced second-order model is suitable for representing the degradation efficiency of PGRD in the BAP oxidation system. The optimal operating conditions were \( {m}_{NaHCO_3}=90\,mg \) , \( {V}_{H_2{O}_2}=0.4\,mL \) , and T = 50 °C within 40 min of treatment, leading to a maxima degradation efficiency of PGRD (η) of 47.98%, with a total operating cost of 0.11 USD per liter. Furthermore, the abatement of PGRD in the BAP system follows a Behnajady-Modirshahla-Ghanbery (BMG) kinetic model.

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Data-Based Modeling for Maximizing the Degradation Efficiency of Pomegranate Red Dye in Bicarbonate-Activated Hydrogen Peroxide Oxidation System

  • 会议论文

  • 发表日期：

    2026年

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  • Gina Gómez,
  • Ever Peralta-Reyes,
  • Gianpaolo Fontana,
  • Eustacio Ramírez-Fuentes,
  • Hugo Pérez-Pastenes,
  • Alejandro Regalado-Méndez

摘要

The degradation of azo colorants, such as pomegranate red dye (PGRD), was studied in bicarbonate-activated hydrogen peroxide (BAP). This research is concerned with the modeling and optimization of the BAP oxidization system by response surface methodology (RSM). We employed a full factorial design (FFD) was employed to analyze the influence of key process variables on the degradation efficiency of PGRD (η), including the mass of sodium bicarbonate (NaHCO3), the volume of hydrogen peroxide (H2O2), and the reaction temperature. The reduced second-order model demonstrates an excellent correlation with experimental response values of η, evidenced by a determination coefficient (R2) of 0.99. Additionally, performance indicators such as the mean absolute error (MAE) of 0.893 and root mean square error (RMSE) of 0.905 confirm that the reduced second-order model is suitable for representing the degradation efficiency of PGRD in the BAP oxidation system. The optimal operating conditions were \( {m}_{NaHCO_3}=90\,mg \) , \( {V}_{H_2{O}_2}=0.4\,mL \) , and T = 50 °C within 40 min of treatment, leading to a maxima degradation efficiency of PGRD (η) of 47.98%, with a total operating cost of 0.11 USD per liter. Furthermore, the abatement of PGRD in the BAP system follows a Behnajady-Modirshahla-Ghanbery (BMG) kinetic model.