Assessment of phytotoxic potential and pathogenic bacteria removal from secondary effluents during ozonation and UV/H2O2

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.creatorSommaggio, Lais Roberta Deroldo-
Autor(es): dc.creatorOliveira, Flávio A.-
Autor(es): dc.creatorMalvestiti, Jacqueline Aparecida-
Autor(es): dc.creatorMazzeo, Dânia Elisa Christofoletti-
Autor(es): dc.creatorLevy, Carlos Emílio-
Autor(es): dc.creatorDantas, Renato Falcão-
Autor(es): dc.creatorMarin-Morales, Maria Aparecida-
Data de aceite: dc.date.accessioned2025-08-21T19:36:53Z-
Data de disponibilização: dc.date.available2025-08-21T19:36:53Z-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2022-09-15-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jenvman.2022.115522-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/240352-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/240352-
Descrição: dc.descriptionWastewater reuse is an important strategy for water resource management. For this reason, the disinfection process must be appropriated, eliminating pathogenic microorganisms. Ozonation (O3) and UV/H2O2 treatments can be used for effluent disinfection, but few studies just address the Escherichia coli quantification. In this study, secondary effluents from two wastewater treatment plants with different characteristics were exposed to O3 (5 and 10 mg L−1) or UV/H2O2 (H2O2: 90 mg L−1) treatments and evaluated by BD Phoenix ™ 100 (Becton Dickinson, USA) and MALDI-TOF for the characterization of the indigenous microorganisms in the effluents, before and after treatments. Additionally, all the samples were tested for phytotoxicity by Lactuca sativa bioassay. The results showed that the highest ozone dose and the UV/H2O2 treatment were effective in removing E. coli. UV/H2O2 was more efficient as it eliminated most of the microorganisms. Acinetobacter sp., Aeromonas and Pseudomonas were still found after O3 treatment. Bacillus sp. was found after O3 and UV/H2O2 treatments. The results with L. sativa showed inhibition of root growth for all dry period (low rainfall) samples of one of the WWTP, due to the high concentration of the phytotoxicity compounds. For environmental and human health safety, treated effluents should be evaluated for their toxic and pathogenic potential before being released into the environment. Pathogens evaluation on treated effluents should cover a wider range of pathogenic microorganisms than those routinely required by legislation.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionDepartment of Biology Institute of Biosciences São Paulo State University (Unesp), Av. 24-A, 1515-
Descrição: dc.descriptionDepartment of Clinical Pathology Faculty of Medical Sciences University of Campinas (UNICAMP), Alexander Fleming, 105-
Descrição: dc.descriptionSchool of Technology University of Campinas – UNICAMP, Paschoal Marmo 1888-
Descrição: dc.descriptionDepartment of Biotechnology and Plant and Animal Production Center for Agricultural Sciences Federal University of São Carlos (UFSCAR), SP-
Descrição: dc.descriptionDepartment of Biology Institute of Biosciences São Paulo State University (Unesp), Av. 24-A, 1515-
Descrição: dc.descriptionCAPES: 001-
Descrição: dc.descriptionFAPESP: 2014/17774–1-
Descrição: dc.descriptionFAPESP: 2016/22483–1-
Descrição: dc.descriptionCNPq: 308914/2017–1-
Descrição: dc.descriptionCNPq: 460962/2014–0-
Idioma: dc.languageen-
Relação: dc.relationJournal of Environmental Management-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAdvanced oxidation processes-
Palavras-chave: dc.subjectBacillus sp-
Palavras-chave: dc.subjectDisinfection-
Palavras-chave: dc.subjectLactuca sativa-
Palavras-chave: dc.subjectWastewater-
Palavras-chave: dc.subjectWater management-
Título: dc.titleAssessment of phytotoxic potential and pathogenic bacteria removal from secondary effluents during ozonation and UV/H2O2-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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