Simultaneous energy generation, decolorization, and detoxification of the azo dye Procion Red MX-5B in a microbial fuel cell

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorde Almeida, Erica Janaina Rodrigues [UNESP]-
Autor(es): dc.creatorHalfeld, Gisele Giovanna [UNESP]-
Autor(es): dc.creatorReginatto, Valeria-
Autor(es): dc.creatorde Andrade, Adalgisa Rodrigues [UNESP]-
Data de aceite: dc.date.accessioned2022-08-04T22:11:56Z-
Data de disponibilização: dc.date.available2022-08-04T22:11:56Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2021-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jece.2021.106221-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/222264-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/222264-
Descrição: dc.descriptionMicrobial fuel cells (MFCs) are sustainable technologies that can effectively treat wastewater with simultaneous electricity generation. The present study investigated the performance of an MFC highly specific for decolorizing and degrading the azo dye Procion Red MX-5B (PRMX), which eliminates the toxicity of the solution while generating electricity. The MFC anode biofilm was formed from mining sediment after acclimatization in sodium acetate (1 g L-1), followed by the addition of 100 mg L-1 PRMX. The system was totally decolorized, and the color removal occurred fast during the first 70 h of the MFC feed cycle. Total mineralization occurred after 172 h of the feed cycle of the MFC system. Complete degradation of the aromatic intermediates generated after PRMX degradation reduced the toxic potential of the PRMX solution against A. salina larvae and L. sativa seeds to near zero. PRMX supply into the anode increased the voltage output from 360 mV (1 g L-1 sodium acetate - SA) to 520 mV (PRMX/SA 100 mg L-1: 0.25 g L-1). The maximum power density of 156 mW m-2 obtained herein was higher than most values reported for dye remediation in similar devices. Assessment of the microbial community showed that PRMX addition to the acetate diminished the microbial diversity in the bioanode. Pseudomonas and Dysgonomonas accounted for 87% of the biofilm. Therefore, both genera are most probably responsible for external electron transfer and PRMX degradation.-
Descrição: dc.descriptionUniversidade de São Paulo-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionDepartamento de Química Faculdade de Filosofia Ciências e Letras de Ribeirão Preto Universidade de São Paulo-
Descrição: dc.descriptionUnesp National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) Institute of Chemistry, P.O. Box 355-
Descrição: dc.descriptionUnesp National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) Institute of Chemistry, P.O. Box 355-
Descrição: dc.descriptionCNPq: INCT 465571/2014-0-
Idioma: dc.languageen-
Relação: dc.relationJournal of Environmental Chemical Engineering-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAcute toxicity-
Palavras-chave: dc.subjectDysgonomonas-
Palavras-chave: dc.subjectPower generation-
Palavras-chave: dc.subjectProcion Red MX-5B-
Palavras-chave: dc.subjectPseudomonas-
Palavras-chave: dc.subjectSynthetic dyes-
Título: dc.titleSimultaneous energy generation, decolorization, and detoxification of the azo dye Procion Red MX-5B in a microbial fuel cell-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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