Insight into the sulfite activation by Fe-rich sludge-derived biochar for efficient organic contaminant degradation: The role of iron species

文献类型： 外文期刊

第一作者： Liu, Xixiang

作者： Liu, Xixiang;Shi, Xinyi;Huang, Mingjian;Pan, Honghui;Liu, Yan;Liang, Liying;Zhao, Chuanqi;He, Tieguang;Liu, Xixiang;Pan, Honghui;Huang, Shiyong

作者机构：

关键词： Advanced oxidation processes; Sludge pyrolysis; Sulfate radical; Iron oxide species; Organic pollutants degradation

期刊名称：JOURNAL OF WATER PROCESS ENGINEERING （ 影响因子：6.3； 五年影响因子：6.3 ）

ISSN： 2214-7144

年卷期： 2024 年 64 卷

页码：

收录情况： SCI

摘要： Sulfate radical-based advanced oxidation processes driven by sulfite [S(IV)] activation offer a sustainable and cost-effective approach for environmental remediation. The utilization of abundant iron oxide species in Fe-rich sludge for S(IV) activation presents a cost-effective and eco-friendly solution, making it an attractive option for Fe-rich sludge disposal and water treatment. Herein, an efficient S(IV) activation system was developed by using Fe-rich sludge-derived biochar (FBC) for the first time. The performance of S(IV) activation by different pyrolyzed FBCs was evaluated in terms of tetracycline (TC) degradation. The highest degradation efficiency of TC was achieved 95.0 % in the S(IV)/FBC700 under the optimum conditions. The reactive radical species responsible for TC degradation in the system were confirmed to be SO4 center dot-. The present work opens up new possibilities for the development of novel advanced oxidation processes utilizing the waste Fe-rich sludge.

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