Journal
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
Volume 45, Issue 24, Pages 2611-2692Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10643389.2015.1025646
Keywords
Fenton; photo-Fenton; solar photo-Fenton; electro-Fenton; sono-Fenton; hybrid technologies; heterogeneous Fenton; CWPO phenol; chlorophenol; AOPs; industrial wastewater treatment
Categories
Funding
- Spanish MICINN [CTQ2013-41963-R]
- CM [S2013/MAE-2716]
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The implementation of increasingly stringent regulations for wastewater discharge has enforced research efforts toward either the implementation of novel treatments or the improvement of those presently available. The literature on the use of Fenton oxidation in wastewater treatment has established this method as one of the most effective and suitable process for the abatement of recalcitrant water pollutants. However, despite the many advantages of the conventional Fenton process, there are issues relative to pH modulation, the cost associated to H2O2 and catalyst consumption as well as to sludge disposal that limit a more extended full-scale application. In recent years, several solutions have been developed for the sake of improving Fenton (or Fenton-like) oxidation as a cost-effective technology. This paper presents a thorough review on the different ways of intensifying the Fenton by using radiation, electrochemistry, and/or heterogeneous catalysts, as well as by optimizing the main operating conditions in the conventional homogeneous system. The application of these enhanced technologies to synthetic and real industrial wastewaters is described and discussed.
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