Electrochemical recovery and high value-added reutilization of heavy metal ions from wastewater: Recent advances and future trends

被引：126

作者：

Yang, Liming ^{[1
,2
]}

Hu, Wenbin ^{[1
,2
]}

Chang, Ziwen ^{[1
,2
]}

Liu, Tian ^{[3
]}

Fang, Difan ^{[1
,2
]}

Shao, Penghui ^{[1
,2
]}

Shi, Hui ^{[1
,2
]}

Luo, Xubiao ^{[1
,2
]}

机构：

[1] Nanchang Hangkong Univ, Natl Local Joint Engn Res Ctr Heavy Met Pollutant, Nanchang 330063, Jiangxi, Peoples R China

[2] Nanchang Hangkong Univ, Key Lab Jiangxi Prov Persistent Pollutants Contro, Nanchang 330063, Jiangxi, Peoples R China

[3] Zhejiang Univ, Fac Agr Life & Environm Sci, Hangzhou 310058, Peoples R China

来源：

ENVIRONMENT INTERNATIONAL | 2021年 / 152卷

基金：

美国国家科学基金会;

关键词：

Heavy metals; Electrochemical; Recovery; Mass transfer; Value-added;

D O I：

10.1016/j.envint.2021.106512

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Wastewater treatment for heavy metals is currently transitioning from pollution remediation towards resource recovery. As a controllable and environment-friendly method, electrochemical technologies have recently gained significant attention. However, there is a lack of systematic and goal oriented summarize of electrochemical metal recovery techniques, which has inhibited the optimized application of these methods. This review aims at recent advances in electrochemical metal recovery techniques, by comparing different electrochemical recovery methods, attempts to target recycling heavy metal resources with minimize energy consumption, boost recovery efficiency and realize the commercial application. In this review, different electrochemical recovery methods (including E-adsorption recovery, E-oxidation recovery, E-reduction recovery, and E-precipitation recovery) for recovering heavy metals are introduced, followed an analysis of their corresponding mechanisms, influencing factors, and recovery efficiencies. In addition, the mass transfer efficiency can be promoted further through optimizing electrodes and reactors, and multiple technologies (photo-electrochemical and sono-electrochemical) could to be used synergistically improve recovery efficiencies. Finally, the most promising directions for electrochemical recovery of heavy metals are discussed along with the challenges and future opportunities of electrochemical technology in recycling heavy metals from wastewater.

引用

页数：15

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