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An experimental approach to the optimization of the dosage of hydrogen peroxide for Fenton and photo-Fenton processes

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10.1016/j.scitotenv.2020.140402
 
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hdl:2117/327604

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Yu, Xiangwei
Graells Sobré, MoisèsMés informacióMés informacióMés informació
Pérez Moya, MontserratMés informacióMés informacióMés informació
Document typeArticle
Defense date2020-11-11
PublisherElsevier
Rights accessRestricted access - publisher's policy (embargoed until 2022-11-15)
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
The determination of the hydrogen peroxide dosage scheme that minimizes hydrogen peroxide consumption while meeting the specified treatment outcome is crucial for Fenton and photo-Fenton processes. The challenge is building a methodology that provides the optimal dosage profile. However, the lack of detailed dynamic models prevents exploiting model-based optimization methods that have proved successful in other applications. Thus, this work addresses this challenge by providing a problem formulation identifying and discussing objectives and constraints, and the nature of the optimal solution. From this point, the work presents a novel dosage model and a consequent methodology aimed at experimentally optimizing the dosage profile along a discretized time horizon following recipe optimization concepts. The approach is parallel to the numerical solution of the model-based optimization problem posed by hydrogen peroxide dosage. The proposed methodology is validated in the remediation of a Paracetamol (PCT) solution, and the obtained results are assessed and discussed in regard of the evolution of the concentration of hydrogen peroxide, the contaminant (PCT), and Total Organic Carbon (TOC). The concentration of dissolved oxygen (DO), which is also monitored, allows providing a more comprehensive explanation of the nature of the process.
CitationYu, X.; Graells, M.; Pérez-Moya, M. An experimental approach to the optimization of the dosage of hydrogen peroxide for Fenton and photo-Fenton processes. "Science of the total environment", 11 Novembre 2020, vol. 743, p. 140402:1-140402:10. 
URIhttp://hdl.handle.net/2117/327604
DOI10.1016/j.scitotenv.2020.140402
ISSN0048-9697
Publisher versionhttps://www.sciencedirect.com/science/article/pii/S0048969720339243
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  • Doctorat en Enginyeria de Processos Químics - Articles de revista [74]
  • CEPIMA - Center for Process and Environment Engineering - Articles de revista [119]
  • Departament d'Enginyeria Química - Articles de revista [1.918]
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