Electrochemical advanced oxidation processes (EAOPs) as alternative treatment techniques for carwash wastewater reclamation

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dc.contributor.authorGaniyu, Soliu O.
dc.contributor.authorVieira dos Santos, Elisama
dc.contributor.authorTossi de Araújo Costa, Emily Cintia
dc.contributor.authorMartínez-Huitle, Carlos A. [UNESP]
dc.contributor.institutionLagoa Nova
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T16:55:20Z
dc.date.available2018-12-11T16:55:20Z
dc.date.issued2018-11-01
dc.description.abstractElectrochemical advanced oxidation processes such as electrooxidation (EO), electrooxidation with hydrogen peroxide generation (EO-H2O2) and electro-Fenton process (EF) have been investigated as alternative treatment techniques for complete removal of anionic surfactants and organic matters from real carwash wastewater. The electrochemical processes were performed with acidified real carwash wastewater using boron doped anode and carbon felt cathode. In all cases, the chemical oxygen demand (COD) removal efficiency was always increased with rise in applied current and complete organic matter decay was achieved at applied current of 500 mA or above after 6 h of electrolysis. Faster and higher COD decay was observed with EF compared to either EO or EO-H2O2 treatment, at all currents and electrolysis time. Besides, complete degradation of anionic surfactants – the major organic content of the wastewater could be achieved at all applied currents studied irrespective of the process used, indicating the efficacy of processes for total remediation of real carwash wastewater. The short-chain carboxylic acids formed as the final organic byproducts were identified and quantified by ion-exclusion chromatography. More so, lower energy consumption and higher current efficiency were achieved with EF compared to EO-H2O2. Electrochemical treatment was found to be a powerful technology for the complete abatement of organic matter in carwash wastewater for possible reuse.en
dc.description.affiliationInstitute of Chemistry Federal University of Rio Grande do Norte Lagoa Nova
dc.description.affiliationScience and TechnologySchool Federal University of Rio Grande do Norte Lagoa Nova
dc.description.affiliationUnesp National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) Institute of Chemistry, P.O. Box 355
dc.description.affiliationUnespUnesp National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) Institute of Chemistry, P.O. Box 355
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2014/50945-4
dc.description.sponsorshipIdCNPq: 401519/2014-7
dc.description.sponsorshipIdCNPq: 446846/2014-7
dc.description.sponsorshipIdCNPq: 465571/2014-0
dc.format.extent998-1006
dc.identifierhttp://dx.doi.org/10.1016/j.chemosphere.2018.08.044
dc.identifier.citationChemosphere, v. 211, p. 998-1006.
dc.identifier.doi10.1016/j.chemosphere.2018.08.044
dc.identifier.file2-s2.0-85053131262.pdf
dc.identifier.issn1879-1298
dc.identifier.issn0045-6535
dc.identifier.scopus2-s2.0-85053131262
dc.identifier.urihttp://hdl.handle.net/11449/171437
dc.language.isoeng
dc.relation.ispartofChemosphere
dc.relation.ispartofsjr1,435
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAnionic surfactants
dc.subjectCarwash wastewater
dc.subjectElectro-Fenton
dc.subjectElectrochemical advanced oxidation processes
dc.subjectElectrooxidation
dc.subjectOrganic matter
dc.titleElectrochemical advanced oxidation processes (EAOPs) as alternative treatment techniques for carwash wastewater reclamationen
dc.typeArtigo
unesp.author.orcid0000-0002-8766-7267[1]
unesp.author.orcid0000-0003-2189-5694[2]

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