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Surface-Modified Sewage Sludge-Derived Carbonaceous Catalyst as a Persulfate Activator for Phenol Degradation

Author

Listed:
  • Meiling Han

    (College of Navigation, Dalian Maritime University, Dalian 116026, China)

  • Jin Zhang

    (College of Environmental Sciences and Engineering, Dalian Maritime University, Dalian 116026, China)

  • Wen Chu

    (ACRE Coking & Engineering Consulting Corporation, MCC, Dalian 116085, China)

  • Gongfu Zhou

    (College of Navigation, Dalian Maritime University, Dalian 116026, China)

  • Jiahao Chen

    (College of Navigation, Dalian Maritime University, Dalian 116026, China)

Abstract

In this study, a catalytic persulfate oxidation process comprising sodium persulfate (PS) and modified sewage sludge-derived carbonaceous catalysts was tested for the degradation of phenol. Sludge-based biochar was modified by high-temperature treatment combined with hydrochloric acid oxidation. The surface properties of carbonaceous catalysts before and after modification were characterized by elemental analysis, N 2 isothermal adsorption-desorption, scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. The effects of reaction parameters including catalyst dosage, PS/phenol molar ratio, initial pH and reaction temperature on the degradation rate of phenol were investigated. The kinetics of phenol transformation was explored and the reaction rate appeared pseudo first-order kinetics. In SS-600-HCl/PS system, 91% phenol could be efficiently degraded under certain reaction conditions ([phenol] 0 = 100 mg/L, catalyst dosage = 0.8 g/L, PS/phenol molar ratio = 3/1, pH = 7, 25 °C) in 180 min. Thus, the results showed that the modified sewage sludge-derived carbonaceous catalyst had a better ability to activate PS for phenol degradation.

Suggested Citation

  • Meiling Han & Jin Zhang & Wen Chu & Gongfu Zhou & Jiahao Chen, 2020. "Surface-Modified Sewage Sludge-Derived Carbonaceous Catalyst as a Persulfate Activator for Phenol Degradation," IJERPH, MDPI, vol. 17(9), pages 1-14, May.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:9:p:3286-:d:355537
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    References listed on IDEAS

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    1. Jian Xu & Xueliang Zhang & Cheng Sun & Huan He & Yuxuan Dai & Shaogui Yang & Yusuo Lin & Xinhua Zhan & Qun Li & Yan Zhou, 2018. "Catalytic Degradation of Diatrizoate by Persulfate Activation with Peanut Shell Biochar-Supported Nano Zero-Valent Iron in Aqueous Solution," IJERPH, MDPI, vol. 15(9), pages 1-18, September.
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    Cited by:

    1. Wenyang Wang & Xiyuan Wang & Hao Zhang & Qingdong Shi & Huapeng Liu, 2022. "Rhamnolipid-Enhanced ZVI-Activated Sodium Persulfate Remediation of Pyrene-Contaminated Soil," IJERPH, MDPI, vol. 19(18), pages 1-14, September.

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