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Exothermic Reaction in the Cleaning of Wastewater by a Fe 2 O 3 /Coconut Shell Activated Carbon/H 2 O 2 Heterogeneous Fenton-like System

Author

Listed:
  • Ke Zhang

    (Engineering Training Center, Shandong University, No. 27, South Shanda Road, Jinan 250100, China)

  • Yuntao Yan

    (Engineering Training Center, Shandong University, No. 27, South Shanda Road, Jinan 250100, China
    National Engineering Laboratory for Coal Combustion Pollutant Emission Reduction, School of Energy and Power Engineering, Shandong University, No. 27, South Shanda Road, Jinan 250100, China)

Abstract

Energy utilization in wastewater degradation has important implications for sustainability; however, efficient multiphase Fenton-like catalysts are still needed. In this study, a heterogeneous Fe 2 O 3 /coconut shell activated carbon (CSAC) Fenton-like catalyst was prepared and evaluated with respect to degradation performance and exothermic reaction for the treatment of organic wastewater. Fe 2 O 3 @CSAC retained the porous morphology of CSAS, and Fe 2 O 3 was uniformly loaded on the surface of CSAS. In the reaction system, the degradation rate of wastewater was higher and a large amount of heat was released; therefore, it could be applied to the energy recovery from wastewater source heat pump technology. The degradation rate of 300 mL of o -phenylenediamine solution with a concentration of 0.04 mol·L −1 was 89.0% under 0.25 mol·L −1 H 2 O 2 , 532 g·L −1 Fe 2 O 3 @CSAC, pH 7.1, and an initial reaction temperature of 30 °C, elevated to 7.9 °C. These findings clearly demonstrate the degradation performance and exothermic laws of the Fe 2 O 3 @CSAC/H 2 O 2 multiphase Fenton-like system.

Suggested Citation

  • Ke Zhang & Yuntao Yan, 2024. "Exothermic Reaction in the Cleaning of Wastewater by a Fe 2 O 3 /Coconut Shell Activated Carbon/H 2 O 2 Heterogeneous Fenton-like System," Sustainability, MDPI, vol. 16(4), pages 1-14, February.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:4:p:1482-:d:1336494
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