工业水处理 ›› 2022, Vol. 42 ›› Issue (2): 1-10. doi: 10.19965/j.cnki.iwt.2020-1236

• 专论与综述 •    下一篇

Fenton反应中加速FeⅢ还原为FeⅡ的研究进展及展望

朱紫燕1(), 王孝文1, 王允东1, 杨海亮2, 李勇1, 刘忻1()   

  1. 1. 苏州科技大学环境科学与工程学院, 江苏 苏州 215009
    2. 苏州科特环保股份有限公司, 江苏 苏州 215164
  • 收稿日期:2021-11-28 出版日期:2022-02-20 发布日期:2022-03-15
  • 作者简介:

    朱紫燕(1998— ),硕士研究生。E⁃mail:

    刘忻。E⁃mail:。

  • 基金资助:
    “十三五”水体污染控制与治理科技重大专项课题(2017ZX07205-02); 江苏省基础研究计划(自然科学基金)青年基金项目(BK20160359); 污染控制与资源化研究国家重点实验室开放课题(PCRRF16027); 江苏省研究生科研与实践创新计划项目(SJCX20_1123)

Research progress and prospect of accelerating reduction of FeⅢ to FeⅡ in Fenton reaction

Ziyan ZHU1(), Xiaowen WANG1, Yundong WANG1, Hailiang YANG2, Yong LI1, Xin LIU1()   

  1. 1. College of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou 215009,China
    2. Suzhou Kete Environmental Protection Co. ,Ltd. ,Suzhou 215164,China
  • Received:2021-11-28 Online:2022-02-20 Published:2022-03-15

摘要:

Fenton反应作为当今高级氧化技术的代表,已被广泛应用于难降解有机废水的处理。但工程实践中发现,因体系内FeⅡ迅速消耗、FeⅢ快速积累产生大量难以处置的铁泥,成为Fenton技术进一步推广应用的桎梏。加速Fenton反应中FeⅢ还原为FeⅡ,尽可能实现体系内FeⅢ/FeⅡ循环,以此减少FeⅡ投加和铁泥产生是未来有望实现突破的一种解决思路。近年来关于加速Fenton反应中FeⅢ还原为FeⅡ的研究主要分为2个方面:输入能量和投加物质。回顾了不同物质和能量形式对于反应体系催化降解能力的强化作用,如FeⅡ/FeⅢ比例增大、污染物去除率提高、降解速率加快等,同时分析了其中的反应原理。最后基于相关技术在实际应用中存在的一些问题,指出提高能量利用率和优化物质选择是未来研究的重点。

关键词: Fenton反应, 难降解有机废水, 铁价态循环, 输入能量

Abstract:

As a representative of advanced oxidation technology nowadays,Fenton reaction has been widely used in the treatment of refractory organic wastewater. However,engineering practice witnesses masses of troublesome iron sludge produced because FeⅡ is fast consumed while FeⅢ is rapidly accumulated,which constraints further promotion and application of the Fenton reaction. One promising solution to break this shackle in the future is accelerating FeⅢ reduction to FeⅡ,which makes the FeⅢ/FeⅡ cycling possible,also reduces FeⅡ dosage and iron sludge. Studies on the topic of accelerating FeⅢ reduction to FeⅡ recent years can be divided into two groups:energy input and substance adding. The effects of different substances and energy forms on the catalytic degradation ability of the reaction system were reviewed,including the increase of FeⅡ/FeⅢ ratio,the improvement of pollutant removal efficiency and the acceleration of degradation rate. Meanwhile the reaction principles were analyzed. Finally,based on the problems existed in the practical application,it was proposed that increasing energy utilization and optimizing selection of substances would be the focus of future research.

Key words: Fenton reaction, refractory organic wastewater, cycling of iron, energy applied

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