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https://hdl.handle.net/10216/106050
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DC Field | Value | Language |
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dc.creator | Diego R. Manenti | |
dc.creator | Aparecido N. Módenes | |
dc.creator | Petrick A. Soares | |
dc.creator | Fernando R. Espinoza-Quiñones | |
dc.creator | Rui A. R. Boaventura | |
dc.creator | Rosângela Bergamasco | |
dc.creator | Vítor J. P. Vilar | |
dc.date.accessioned | 2022-09-09T05:47:42Z | - |
dc.date.available | 2022-09-09T05:47:42Z | - |
dc.date.issued | 2014 | |
dc.identifier.issn | 1385-8947 | |
dc.identifier.other | sigarra:93941 | |
dc.identifier.uri | https://hdl.handle.net/10216/106050 | - |
dc.description.abstract | The performance of a multistage treatment system for textile wastewater was investigated in this study. The processes of electrocoagulation (EC), photo-Fenton oxidation, and activated sludge biological degradation were integrated in batch mode. The integrated treatment system performance was assessed according to three response variables: dissolved organic carbon (DOC), chemical oxygen demand (COD) and biodegradability index. Based on preliminary tests, the EC-based wastewater treatment was suitable as the first stage of the integrated treatment system, followed by the photo-Fenton process. A lab photo-reactor was used to assess the influence of photo-Fenton variables on the process performance. Based on the better lab photo-Fenton reactor conditions, the improvement of some biological indicators related to the organics biodegradability of treated wastewater was investigated in a pilot-scale photoreactor. An activated sludge-based biological reactor at lab-scale was used as a final treatment stage, in order to achieve the legislated limits for discharge into water bodies. Partial degradation of the organic pollutants was achieved by the EC process, with a 36% reduction in COD. In the second treatment stage, a 70% biodegradability index was attained by setting the photo-Fenton reaction conditions at 100 mg Fe2+ L-1, pH 2.8, 12 mM H2O2 and 6.9 kJ L-1 accumulated energy. Finally, a residual COD of 139 mg O-2 L-1 was achieved at the outlet of the biological process, which is below the maximum limit established by the Portuguese legislation. | |
dc.language.iso | eng | |
dc.relation | info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e a Tecnologia/Projetos Estratégicos/PEst-C/EQB/LA0020/2013/PROJECTO ESTRATÉGICO - LA 20 - 2013-2014/LA 20 | |
dc.rights | restrictedAccess | |
dc.subject | Tecnologia ambiental, Engenharia do ambiente | |
dc.subject | Environmental technology, Environmental engineering | |
dc.title | Assessment of a multistage system based on electrocoagulation, solar photo-Fenton and biological oxidation processes for real textile wastewater treatment | |
dc.type | Artigo em Revista Científica Internacional | |
dc.contributor.uporto | Faculdade de Engenharia | |
dc.identifier.doi | 10.1016/j.cej.2014.04.096 | |
dc.identifier.authenticus | P-009-DQ9 | |
dc.subject.fos | Ciências da engenharia e tecnologias::Engenharia do ambiente | |
dc.subject.fos | Engineering and technology::Environmental engineering | |
Appears in Collections: | FEUP - Artigo em Revista Científica Internacional |
Files in This Item:
File | Description | Size | Format | |
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93941.pdf Restricted Access | 1.75 MB | Adobe PDF | Request a copy from the Author(s) |
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