Adsorption of algal organic matter on activated carbons from alternative sources: Influence of physico-chemical parameters

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorLeite, Luan de Souza-
Autor(es): dc.creatorHoffmann, Maria Teresa-
Autor(es): dc.creatorde Vicente, Fábio Simões-
Autor(es): dc.creatordos Santos, Danilo Vitorino-
Autor(es): dc.creatorDaniel, Luiz Antonio-
Data de aceite: dc.date.accessioned2025-08-21T22:26:40Z-
Data de disponibilização: dc.date.available2025-08-21T22:26:40Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2021-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jwpe.2021.102435-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/222826-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/222826-
Descrição: dc.descriptionThe algal organic matter (AOM) is a concern for water treatment due to its low removal by traditional technologies. Granular activated carbon (GAC) is used extensively in drinking water treatment in various roles; however, there is little information about GAC performance for AOM removal. In this context, this study investigated the AOM removal by alternative (bovine bone (BO), babassu coconut (BA), and dende coconut (DE)) and traditional (bituminous (BI)) activated carbons in different testing conditions (pH, ionic strength, and adsorbent dosage). Freundlich model fitted better to predict the isotherm data than the Langmuir model for all GACs (R2 > 0.99). High removals were found for BI (86.3 to 99.5%), BA (82.9 to 95.5%), BO (67.2 to 88.2%), and DE (58.0 to 78.8%). The AOM removal followed the order of BI > BA > BO > DE for all conditions tested. The traditional BI showed the best performance for AOM removal; however, BA was also effective and showed efficiencies close to BI. Trihalomethanes formation potential (THMFP) after the adsorption was assessed and high reductions were obtained for BI (86.3 to 99.5%), BA (82.9 to 94.3%), BO (67.2 to 88.2%), and DE (58.0 to 78.8%). The competition between AOM with dissolved humic acid (HA) for sorption sites was also evaluated. The presence of HA in a lower concentration than AOM can increase the AOM removal significantly for all GACs, making their efficiencies very similar. Our findings will allow a better design to improve the affinity of these GACs for AOM removal in water treatment facilities.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionDepartment of Hydraulics and Sanitation São Carlos School of Engineering University of São Paulo, Av. Trabalhador São-Carlense, 400-
Descrição: dc.descriptionDepartment of Physics Institute of Geosciences and Exact Sciences Sao Paulo State University (UNESP)-
Descrição: dc.descriptionLaboratory of Chemical Residues University of São Paulo-
Descrição: dc.descriptionDepartment of Physics Institute of Geosciences and Exact Sciences Sao Paulo State University (UNESP)-
Descrição: dc.descriptionFAPESP: 2019/05759-1-
Idioma: dc.languageen-
Relação: dc.relationJournal of Water Process Engineering-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAdsorption-
Palavras-chave: dc.subjectCompetitive adsorption-
Palavras-chave: dc.subjectGranular activated carbon-
Palavras-chave: dc.subjectNatural organic matter-
Palavras-chave: dc.subjectTrihalomethanes-
Título: dc.titleAdsorption of algal organic matter on activated carbons from alternative sources: Influence of physico-chemical parameters-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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