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F. Javier Benitez

Bio: F. Javier Benitez is an academic researcher from University of Extremadura. The author has contributed to research in topics: Reaction rate constant & Hydrogen peroxide. The author has an hindex of 37, co-authored 97 publications receiving 3900 citations.


Papers
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TL;DR: The improvement in the decomposition levels reached by the combined processes, due to the generation of the very reactive hydroxyl radicals, in relation to the single oxidants is clearly demonstrated and evaluated by kinetic modeling.

190 citations

Journal ArticleDOI
TL;DR: The improvement in the decomposition levels of carbofuran reached by the combined processes in relation to the single oxidants, due to the generation of the very reactive hydroxyl radicals, is also established in every process.

172 citations

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TL;DR: In this article, the degradation of selected pharmaceuticals in some water matrices was studied by using several chemical treatments, including UV radiation alone, ozone, Fenton's reagent, photo-Fenton system, and combinations of UV radiation and ozone with H 2 O 2, TiO 2, Fe(II), and Fe(III).

136 citations

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TL;DR: Apparent rate constants for the reactions of four selected pharmaceutical compounds with chlorine in ultra-pure (UP) water were determined as a function of the pH, and the efficiency of the chlorination process with respect to the pharmaceuticals elimination and the formation THMs was established.

128 citations


Cited by
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Journal ArticleDOI
TL;DR: In this paper, the complex mechanisms of Fenton and Fenton-like reactions and the important factors influencing these reactions, from both a fundamental and practical perspective, in applications to water and soil treatment, are discussed.
Abstract: Fenton chemistry encompasses reactions of hydrogen peroxide in the presence of iron to generate highly reactive species such as the hydroxyl radical and possibly others. In this review, the complex mechanisms of Fenton and Fenton-like reactions and the important factors influencing these reactions, from both a fundamental and practical perspective, in applications to water and soil treatment, are discussed. The review covers modified versions including the photoassisted Fenton reaction, use of chelated iron, electro-Fenton reactions, and Fenton reactions using heterogeneous catalysts. Sections are devoted to nonclassical pathways, by-products, kinetics and process modeling, experimental design methodology, soil and aquifer treatment, use of Fenton in combination with other advanced oxidation processes or biodegradation, economic comparison with other advanced oxidation processes, and case studies.

3,218 citations

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TL;DR: The main conclusions arrived at from the overall assessment of the literature are that more work needs to be done on degradation kinetics and reactor modeling of the combined process, and also dynamics of the initial attack on primary contaminants and intermediate species generation.

2,046 citations

Journal ArticleDOI
TL;DR: In this paper, the degradation of chlorophenols (CPs) by means of advanced oxidation processes (AOPs) was evaluated during the period 1995-2002 and different mechanistic degradation pathways were taken into account.
Abstract: Advanced oxidation processes (AOPs) constitute a promising technology for the treatment of wastewaters containing non-easily removable organic compounds. Chlorophenols (CPs) are a group of special interest due to their high toxicity and low biodegradability. Data concerning the degradation of CPs by means of AOPs reported during the period 1995–2002 are evaluated in this work. Among the AOPs, the following techniques are studied: processes based on hydrogen peroxide (H2O2+UV, Fenton, photo-Fenton and Fenton-like processes), photolysis, photocatalysis and processes based on ozone (O3, O3+UV and O3+catalyst). Half-life times and kinetic constants for CP degradation are reviewed and the different mechanistic degradation pathways are taken into account.

2,024 citations

Journal ArticleDOI
TL;DR: In this article, the authors highlight five different oxidation processes operating at ambient conditions viz. cavitation, photocatalytic oxidation, Fenton's chemistry, ozonation, and use of hydrogen peroxide.

1,852 citations

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TL;DR: It was found that ozonation, Fenton/photo-Fenton and semiconductor photocatalysis were the most tested methodologies and combined processes seem to be the best solution for the treatment of effluents containing antibiotics, especially those using renewable energy and by-products materials.

1,219 citations