Abstract
This study investigates the effect of pH, Fe2+ and H2O2 concentrations, and the molar ratio of H2O2 to Fe2+ on acetaminophen (ACT) degradation by the double-cathode cylinder-type and box-type electro-Fenton (EF) reactors. The effect of sulfate, nitrate, and phosphate on ACT degradation is examined. The experimental results showed that ACT removal in the box-type EF reactor was significantly more affected by Fe2+ and H2O2 concentrations than in the cylinder-type EF reactor. The optimum pH in the two reactors was 3 under low and high concentrations of Fenton's reagent. ACT removal in the two reactors decreased when the molar ratio of H2O2 to Fe2+ increased from 150 to 1500. The cylinder-type EF process had better ACT removal efficiency than the box-type EF process. A 22% increase in chemical oxygen demand (COD) removal was observed with the EF process, while a 34% increase was obtained with the photoelectro-Fenton (PEF) process. The inhibition effect of inorganic ions on ACT degradation in the EF and PEF processes was in the order of PO43−> NO3− = SO42−.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
