Continuous removal of caffeine in a horizontal-flow anaerobic immobilized biomass bioreactor: identification of transformation products

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorHarvard Medical School-
Autor(es): dc.creatorMartins, Giovana Silva-
Autor(es): dc.creatorRodrigues, Thaís-
Autor(es): dc.creatorLamarca, Rafaela Silva-
Autor(es): dc.creatorAyala-Durán, Saidy Cristina-
Autor(es): dc.creatorda Silva, Bianca Ferreira-
Autor(es): dc.creatorde Lima Gomes, Paulo Clairmont Feitosa-
Data de aceite: dc.date.accessioned2025-08-21T22:11:07Z-
Data de disponibilização: dc.date.available2025-08-21T22:11:07Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2023-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s11356-023-29875-x-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/299324-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/299324-
Descrição: dc.descriptionAnaerobic bioreactors are an efficient technology for the biodegradation of emerging contaminants in environmental matrices. In this work, a horizontal-flow anaerobic immobilized biomass (HAIB) bioreactor was used to remove caffeine (CAF), which is frequently found in various aqueous matrices. The acrylic bench top bioreactor, with dimensions of 100 × 5.00 cm, was operated with a hydraulic retention time (HRT) of 12 h, during 45 weeks, under mesophilic conditions. The operation was performed in 4 phases: without CAF addition (phase I); CAF spiked at 300 μg L−1 (phase II); CAF at 600 μg L−1 (phase III); and CAF at 900 μg L−1 (phase IV). Samples of bioreactor influent and effluent were analyzed by liquid chromatography/tandem mass spectrometry (LC–MS/MS). The bioreactor removed organic matter (OM) and CAF with efficiencies of 88 and 93%, respectively. The first-order apparent removal constant (Kapp) values for OM and CAF were 0.419 and 0.304 h−1, respectively. Five transformation products (TPs) were identified, with m/z 243, 227, 211, and 181 (two products). The HAIB bioreactor is a suitable system for the removal of CAF present in wastewater, even at a concentration level of µg L−1.-
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.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionSao Paulo State University Julio de Mesquita Filho Institute of Chemistry, Sao Paulo-
Descrição: dc.descriptionToxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) Institute of Chemistry National Institute for Alternative Technologies of Detection São Paulo State University (UNESP), Rua Prof. Francisco Degni 55, SP-
Descrição: dc.descriptionHarvard Medical School, 250 Longwood Avenue, SGM Room 636-
Descrição: dc.descriptionSao Paulo State University Julio de Mesquita Filho Institute of Chemistry, Sao Paulo-
Descrição: dc.descriptionToxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) Institute of Chemistry National Institute for Alternative Technologies of Detection São Paulo State University (UNESP), Rua Prof. Francisco Degni 55, SP-
Descrição: dc.descriptionFAPESP: 2014/50945-4-
Descrição: dc.descriptionFAPESP: 2018/22393-8-
Descrição: dc.descriptionFAPESP: 2022/02991-3-
Descrição: dc.descriptionCNPq: 465571/2014-0-
Descrição: dc.descriptionCAPES: 88887136426/2017/00-
Formato: dc.format107759-107771-
Idioma: dc.languageen-
Relação: dc.relationEnvironmental Science and Pollution Research-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCaffeine-
Palavras-chave: dc.subjectHorizontal-flow anaerobic immobilized biomass bioreactor-
Palavras-chave: dc.subjectTransformation products-
Título: dc.titleContinuous removal of caffeine in a horizontal-flow anaerobic immobilized biomass bioreactor: identification of transformation products-
Tipo de arquivo: dc.typelivro digital-
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