CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, India.
Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, PR China.
Chemosphere. 2018 Apr;197:210-227. doi: 10.1016/j.chemosphere.2017.12.195. Epub 2018 Jan 3.
Wastewater containing dyes are one of the major threats to our environment. Conventional methods are insufficient for the removal of these persistent organic pollutants. Recently much attention has been received for the oxidative removal of various organic pollutants by electrochemically generated hydroxyl radical. This review article aims to provide the recent trends in the field of various Electrochemical Advanced Oxidation Processes (EAOPs) used for removing dyes from water medium. The characteristics, fundamentals and recent advances in each processes namely anodic oxidation, electro-Fenton, peroxicoagulation, fered Fenton, anodic Fenton, photoelectro-Fenton, sonoelectro-Fenton, bioelectro-Fenton etc. have been examined in detail. These processes have great potential to destroy persistent organic pollutants in aqueous medium and most of the studies reported complete removal of dyes from water. The great capacity of these processes indicates that EAOPs constitute a promising technology for the treatment of the dye contaminated effluents.
含有染料的废水是对我们环境的主要威胁之一。传统方法不足以去除这些持久性有机污染物。最近，电化学产生的羟基自由基对各种有机污染物的氧化去除引起了广泛关注。本文综述了用于从水介质中去除染料的各种电化学高级氧化工艺（EAOPs）的最新研究进展。详细考察了每种工艺（阳极氧化、电芬顿、过氧凝聚、铁还原芬顿、阳极芬顿、光电芬顿、声电芬顿、生物电芬顿等）的特点、原理和最新进展。这些工艺在破坏水介质中持久性有机污染物方面具有很大的潜力，并且大多数报道的研究都能完全去除水中的染料。这些工艺的巨大容量表明，EAOPs 是处理染料污染废水的一种很有前途的技术。
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