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Review Journal of environmental management. 2025 Apr 15:382:125339. doi: 10.1016/j.jenvman.2025.125339 Q18.02024

Recovery of heavy metal complexes from wastewaters: A critical review of mechanisms and technologies

废水重金属螯合回收技术及其机制的批判性研究综述 翻译改进

Wei Deng  1, Xiaoli Lv  2, Zhe Xu  3, Qingrui Zhang  4, Min Zhao  5, Xianfeng Huang  6

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作者单位

  • 1 National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China; School of Engineering, University of Northern British Columbia, 3333 University Way, V2N 4Z9, British Columbia, Canada.
  • 2 National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China.
  • 3 Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China. Electronic address: xuz@gdut.edu.cn.
  • 4 Hebei Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China.
  • 5 National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China. Electronic address: zmcnzj@sina.com.
  • 6 National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China. Electronic address: xianfeng_huang@wzu.edu.cn.

    • DOI: 10.1016/j.jenvman.2025.125339 PMID: 40239352

    摘要 中英对照阅读

    Heavy metal complexes (HMCs) pose significant ecological challenges while also holding attractive economic value. This review comprehensively summarizes advanced techniques for recovering HMCs from wastewater, including reductive recovery, oxidative decomplexation-recovery, and non-redox separation. Physical and chemical separation approaches utilize specific properties of metal complexes for efficient segregation. Specifically, we explore oxidative decomposition techniques, emphasizing the underlying mechanisms and practical application for selective and non-selective decomplexation techniques. The crucial role of cathodic potential on the efficiency and selectivity of electrochemical reduction processes is also examined. In addition, a comprehensive cost assessment, including energy consumption, associated with these recovering processes is investigated, and opinions on the inadequacy of current studies are provided. Overall, this review uniquely integrates findings on selective physical separation, oxidation, and reduction processes as well as the cost assessments for these techniques, providing a novel and comprehensive perspective on heavy metal recovery. It aims to bridge existing gaps in literature and advance the development of effective recovery methodologies for HMCs.

    Keywords: Cost assessment; Decomplexation processes; Heavy metal complexes; Resource recovery; Separation techniques.

    Keywords：heavy metal complexes; wastewater treatment; recovery mechanisms

    重金属复合物（HMCs）在生态上带来了重大挑战，同时也具有吸引人的经济价值。本文全面总结了从废水中回收HMCs的先进技术，包括还原回收、氧化去络合-回收和非氧化还原分离方法。物理和化学分离方法利用金属复合物的特定性质进行高效分离。具体来说，我们探讨了氧化分解技术，并着重介绍了选择性和非选择性去络合技术的基本原理及其实际应用。此外，还研究了阴极电位对电化学还原过程效率和选择性的影响。另外，本文详细评估了这些回收过程中包括能耗在内的综合成本，并提供了对当前研究不足的意见。总体而言，本综述独特地整合了有关选择性物理分离、氧化和还原过程的研究成果以及这些技术的成本评估，为重金属回收提供了一个新颖而全面的视角。旨在弥补现有文献中的空白并推进HMCs有效回收方法的发展。

    关键词：成本评估；去络合过程；重金属复合物；资源回收；分离技术。

    关键词：重金属复合物; 废水处理; 回收机制

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    期刊名：Journal of environmental management

    缩写：J ENVIRON MANAGE

    ISSN：0301-4797

    e-ISSN：1095-8630

    IF/分区：8.0/Q1

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    Recovery of heavy metal complexes from wastewaters: A critical review of mechanisms and technologies