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Hydrogen Peroxide Activated by Biochar-Supported Sulfidated Nano Zerovalent Iron for Removal of Sulfamethazine: Response Surface Method Approach

Author

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  • Tiao Zhang

    (College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
    Key Laboratory of Agricultural Environmental Pollution Prevention and Control in Red Soil Hilly Region of Jiangxi Province, School of Life Science, Jinggangshan University, Ji’an 343009, China
    These authors contributed equally to this work.)

  • Cui Hu

    (Key Laboratory of Agricultural Environmental Pollution Prevention and Control in Red Soil Hilly Region of Jiangxi Province, School of Life Science, Jinggangshan University, Ji’an 343009, China
    These authors contributed equally to this work.)

  • Qian Li

    (Key Laboratory of Agricultural Environmental Pollution Prevention and Control in Red Soil Hilly Region of Jiangxi Province, School of Life Science, Jinggangshan University, Ji’an 343009, China)

  • Chuxin Chen

    (Key Laboratory of Agricultural Environmental Pollution Prevention and Control in Red Soil Hilly Region of Jiangxi Province, School of Life Science, Jinggangshan University, Ji’an 343009, China)

  • Jianhui Hu

    (Key Laboratory of Agricultural Environmental Pollution Prevention and Control in Red Soil Hilly Region of Jiangxi Province, School of Life Science, Jinggangshan University, Ji’an 343009, China)

  • Xiaoyu Xiao

    (Key Laboratory of Agricultural Environmental Pollution Prevention and Control in Red Soil Hilly Region of Jiangxi Province, School of Life Science, Jinggangshan University, Ji’an 343009, China
    Zhongke-Ji’an Institute for Eco-Environmental Sciences, Ji’an 343016, China)

  • Mi Li

    (Key Laboratory of Agricultural Environmental Pollution Prevention and Control in Red Soil Hilly Region of Jiangxi Province, School of Life Science, Jinggangshan University, Ji’an 343009, China)

  • Xiaoming Zou

    (Key Laboratory of Agricultural Environmental Pollution Prevention and Control in Red Soil Hilly Region of Jiangxi Province, School of Life Science, Jinggangshan University, Ji’an 343009, China)

  • Liangliang Huang

    (College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China)

Abstract

Biochar (BC)-supported sulfide-modified nanoscale zerovalent iron (S-nZVI/BC) was prepared using the liquid-phase reduction method for the application of the removal of sulfamethazine (SMZ) from water. The reaction conditions were optimized by the Box–Behnken response surface method (RSM). A model was constructed based on the influence factors of the removal rate, i.e., the carbon-to-iron ratio (C/Fe), iron-sulfur ratio (Fe/S), pH, and hydrogen peroxide (H 2 O 2 ) concentration, and the influence of each factor on the removal efficiency was investigated. The optimal removal process parameters were determined based on theoretical and experimental results. The results showed that the removal efficiency was significantly affected by the C/Fe ratio and pH ( p < 0.0001) but relatively weakly affected by the Fe/S ratio ( p = 0.0973) and H 2 O 2 concentration ( p = 0.022). The optimal removal process parameters were as follows: 0.1 mol/L H 2 O 2 , a pH of 3.18, a C/Fe ratio of 0.411, and a Fe/S ratio of 59.75. The removal rate of SMZ by S-nZVI/BC was 100% under these conditions. Therefore, it is feasible to use the Box–Behnken RSM to optimize the removal of emerging pollutants in water bodies by S-nZVI/BC.

Suggested Citation

  • Tiao Zhang & Cui Hu & Qian Li & Chuxin Chen & Jianhui Hu & Xiaoyu Xiao & Mi Li & Xiaoming Zou & Liangliang Huang, 2022. "Hydrogen Peroxide Activated by Biochar-Supported Sulfidated Nano Zerovalent Iron for Removal of Sulfamethazine: Response Surface Method Approach," IJERPH, MDPI, vol. 19(16), pages 1-12, August.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:16:p:9923-:d:885992
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    References listed on IDEAS

    as
    1. Airu Huang & Muting Yan & Jingjun Lin & Lijie Xu & He Gong & Han Gong, 2021. "A Review of Processes for Removing Antibiotics from Breeding Wastewater," IJERPH, MDPI, vol. 18(9), pages 1-12, May.
    2. Yanchang Zhang & Lin Zhao & Yongkui Yang & Peizhe Sun, 2020. "Fenton-Like Oxidation of Antibiotic Ornidazole Using Biochar-Supported Nanoscale Zero-Valent Iron as Heterogeneous Hydrogen Peroxide Activator," IJERPH, MDPI, vol. 17(4), pages 1-17, February.
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