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dc.contributor.authorYu, Xiangwei
dc.contributor.authorGraells Sobré, Moisès
dc.contributor.authorMiralles Cuevas, Sara
dc.contributor.authorCabrera Reina, Alejandro
dc.contributor.authorPérez Moya, Montserrat
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Enginyeria de Processos Químics
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2021-06-09T13:09:26Z
dc.date.available2021-06-09T13:09:26Z
dc.date.issued2021-06
dc.identifier.citationYu, X. [et al.]. An improved hybrid strategy for online dosage of hydrogen peroxide in photo-Fenton processes. "Journal of environmental chemical engineering", Juny 2021, vol. 9, núm. 3, p. 105235:1-105235:8.
dc.identifier.issn2213-3437
dc.identifier.urihttp://hdl.handle.net/2117/346971
dc.description.abstractThis work addresses the challenge of designing H2O2 dosage strategies for improving photo-Fenton applications, as well as for further understanding the effect of the dosage. The developed strategy focuses on the limitations of the current solution schemes by adopting a hybrid methodology between open and closed loop approaches and it is based on three different stages: (i) one-shot initial H2O2 addition (ii) continuous H2O2 dosage until reaching a specific dissolved oxygen (DO) level and (iii) on-off control of H2O2 dosage using DO slope as control variable. The proposed strategy is validated in the remediation of a Paracetamol solution (100 mg L-1) and the results are assessed using H2O2 consumption and mineralization rate and level as performance criteria. The final tuning of the proposed strategy consists of: (i) only 40% of the stoichiometric H2O2 concentration, (ii) continuous feeding of H2O2 until a 4 mg L-1 DO concentration is attained, and (iii) on-off control dosage selecting DO slope set-points in 0.1 and 0.2 mg L-1 min-1. These scheme and settings show an improvement of the process performance by ~ 15% with respect to the same H2O2 amount in a single-addition. This work contributes to improving photo-Fenton operations and designing more efficient processes.
dc.language.isoeng
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria química::Impacte ambiental
dc.subject.otherPhoto-Fenton process
dc.subject.otherHydrogen peroxide dosage
dc.subject.otherDissolved oxygen
dc.subject.otherControl
dc.subject.otherWastewater
dc.titleAn improved hybrid strategy for online dosage of hydrogen peroxide in photo-Fenton processes
dc.typeArticle
dc.subject.lemacAigües residuals -- Control
dc.contributor.groupUniversitat Politècnica de Catalunya. CEPIMA - Center for Process and Environment Engineering
dc.identifier.doi10.1016/j.jece.2021.105235
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S2213343721002128?via%3Dihub
dc.rights.accessOpen Access
local.identifier.drac30975216
dc.description.versionPostprint (published version)
local.citation.authorYu, X.; Graells, M.; Miralles, S.; Cabrera-Reina , A.; Pérez-Moya, M.
local.citation.publicationNameJournal of environmental chemical engineering
local.citation.volume9
local.citation.number3
local.citation.startingPage105235:1
local.citation.endingPage105235:8


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