ReviewElectrochemical advanced oxidation processes: A review on their application to synthetic and real wastewaters

- Review of an extensive number of studies from EAOPs origins up to now.
- Appraisal of studies on real effluents in addition to synthetic effluents.
- Assessment of each kind of wastewater in separate and in detail.
- Application of EAOPs as a single stage and in combination with other technologies.
- Description of fundamentals of AO, EF, PEF, SPEF and related processes.

Over the last decades, research efforts have been made at developing more effective technologies for the remediation of waters containing persistent organic pollutants. Among the various technologies, the so-called electrochemical advanced oxidation processes (EAOPs) have caused increasing interest. These technologies are based on the electrochemical generation of strong oxidants such as hydroxyl radicals (OH). Here, we present an exhaustive review on the treatment of various synthetic and real wastewaters by five key EAOPs, i.e., anodic oxidation (AO), anodic oxidation with electrogenerated H2O2 (AO-H2O2), electro-Fenton (EF), photoelectro-Fenton (PEF) and solar photoelectro-Fenton (SPEF), alone and in combination with other methods like biological treatment, electrocoagulation, coagulation and membrane filtration processes. Fundamentals of each EAOP are also given.

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