Removal of BPA from Aqueous Solutions by Electrocoagulation Using iron Electrodes and Optimization

Abstract

  Background and Objectives: Bisphenol A (BPA) is one of the toxic environmental pollutants that can be entered into aquatic ecosystems by raw wastewaters. In the current study, electrocoagulation used in the treatment of water and wastewater in a wide range was investigated for the removal of BPA. Materials and Methods: All the experiments were conducted in a batch system. The effect of operating parameters such as pH, BPA concentration, electrolyte concentration, distance between electrodes, current intensity, and reaction time were evaluated. Experiments were carried out at laboratory temperature (25 °C), potential difference 30 V. Results: According to the results, the optimal condition were follows: BPA concentration 10 mg/L, current intensity 1500 mA, pH=7, and distance between electrodes 0.5 cm. The removal efficiency was ranged 60 to 90 percent. Conclusion: It can be concluded that the electrocoagulation process using iron electrodes in the optimal condition can acceptably remove BPA from aqueous solutions.  

Keywords

• Electrocoagulation
• BPA
• Iron electrodes
• Aqueous solutions