Intensification strategies for thermal H2O2-based advanced oxidation processes: Current trends and future perspectives
Entity
UAM. Departamento de Ingeniería QuímicaPublisher
ElsevierDate
2022-03-15Citation
10.1016/j.ceja.2021.100228
Chemical Engineering Journal Advances 9 (2022): 100228
ISSN
2666-8211 (online)DOI
10.1016/j.ceja.2021.100228Project
Gobierno de España. PID2019-105079RB-I00; Comunidad de Madrid. S2018/EMT-4341/REMTAVARES-CMEditor's Version
https://doi.org/10.1016/j.ceja.2021.100228Subjects
Advanced Oxidation; Ferrioxalate; Degradation; QuímicaRights
© 2021 The Authors
Esta obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional.
Abstract
H2O2-based advanced oxidation technologies, commonly Fenton process or Catalytic Wet Peroxide Oxidation (CWPO), have been widely studied and applied over the past decades for wastewater treatment due to their ability to generate highly oxidizing species, HO• and HOO• radicals, along with a low selectivity which allow the degradation of a wide range of pollutants . Nonetheless, these technologies present some limitations. In the case of Fenton, the requirement of acidic media (pH: 3), the loss of catalyst at the end of reaction because it is dissolved, and the catalyst inactivation caused by certain reaction intermediates (i.e. oxalic acid) that forms complexes compromising its efficiency. For CWPO, the main drawbacks in this heterogeneous process are mainly associated to the relative low activity and stability of the catalysts employed. All these shortcomings can be solved through process intensification, which generally involves in Fenton and CWPO increasing the temperature or the application of an external radiation, being the most interesting ones UV–vis radiation (photo-assisted technologies), and microwave radiation, which inherently presents the advantages of working at high temperature. This paper gathers the most recent advances explored in thermal-intensified H2O2–based advanced oxidation technologies, summarizing the main results obtained for each intensification strategy and outlining where future efforts should be focused
Files in this item
Google Scholar:García Costa, Alicia Loreto
-
Casas de Pedro, José Antonio
This item appears in the following Collection(s)
Related items
Showing items related by title, author, creator and subject.
-
Critical review of technologies for the on-site treatment of hospital wastewater: From conventional to combined advanced processes
Pariente, M. I.; Segura, Y.; Álvarez-Torrellas, Silvia; Casas de Pedro, José Antonio; Martínez de Pedro, Zahara
; Díaz Nieto, Elena
; García, J.; López-Muñoz, M. J.; Marugán, J.; Fernández Mohedano, Ángel
; Molina, R.; Muñoz García, Macarena
; Pablos, C.; Perdigon-Melón, J. A.; Petre, A. L.; Rodríguez Jiménez, Juan José
; Tobajas Vizcaíno, Montserrat
; Martínez, F.
2022-10-15