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Metadados | Descrição | Idioma |
---|---|---|
Autor(es): dc.contributor | Universidade Estadual Paulista (Unesp) | - |
Autor(es): dc.contributor | Universidade de São Paulo (USP) | - |
Autor(es): dc.contributor | School of Science and Technology | - |
Autor(es): dc.creator | Bartilotti, Mariana [UNESP] | - |
Autor(es): dc.creator | Viana, Taís S. | - |
Autor(es): dc.creator | de Oliveira, Danielle P. | - |
Autor(es): dc.creator | Santos, Elisama V. | - |
Autor(es): dc.creator | Rojas-Mantilla, Hernan D. [UNESP] | - |
Autor(es): dc.creator | Santos, Mirian C. [UNESP] | - |
Autor(es): dc.creator | Zanoni, Maria Valnice B. [UNESP] | - |
Data de aceite: dc.date.accessioned | 2022-02-22T00:44:14Z | - |
Data de disponibilização: dc.date.available | 2022-02-22T00:44:14Z | - |
Data de envio: dc.date.issued | 2021-06-25 | - |
Data de envio: dc.date.issued | 2021-06-25 | - |
Data de envio: dc.date.issued | 2021-01-31 | - |
Fonte completa do material: dc.identifier | http://dx.doi.org/10.1016/j.jwpe.2020.101749 | - |
Fonte completa do material: dc.identifier | http://hdl.handle.net/11449/205402 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/11449/205402 | - |
Descrição: dc.description | Petroleum-produced water has raised considerable environmental concerns due to the large amount of contaminants-containing wastewater, generated during petrol and gas extraction. The present work proposes for the first time the use of vermiculite modified by magnetite (Fe3O4) nanoparticles (VMT-mag) as adsorbent for the extraction of metals and BTEX (benzene, toluene, ethylbenzene, and xylene) pollutants and toxicity reduction. Thermally-treated vermiculite was modified by Fe3O4 nanoparticles of 20 nm, which were strongly adhered to the surface, contributing to the magnetization of the material and adsorption of the metals. A 5 min exposure of wastewater to VMT-mag at 15 mg mL−1 led to the removal of 93 % of dissolved organic carbon, 85 % of BTEX compounds, and a reduction of 30–87% of metals (Ba, Al, Ag, Hg and Pb) at low concentration. An investigation was also conducted regarding the efficiency of VMT-mag in reducing toxicity via toxicity assays using the water flea Daphnia similis (ABTN NBR 12713 protocol); the results showed a reduction of Lethal Concentration at 50 % death (LC50) from 5.80 (v/v) to 13.3 % (v/v), respectively, for the samples before and after treatment. The findings show that the application of the proposed VMT-mag can lead to a significant reduction of toxicity and the removal of BTEX and metals in petroleum-produced water. | - |
Descrição: dc.description | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | - |
Descrição: dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | - |
Descrição: dc.description | National Institute of Science and Technology for Detection Toxicological Evaluation and Removal of Micropollutants and Radioactive Substances (INCT-DATREM) in Institute of Chemistry Sao Paulo State University (UNESP) | - |
Descrição: dc.description | Universty of São Paulo (USP) School of Pharmaceutical Sciences of Ribeirão Preto | - |
Descrição: dc.description | Federal University of Rio Grande do Norte (UFRN) School of Science and Technology | - |
Descrição: dc.description | National Institute of Science and Technology for Detection Toxicological Evaluation and Removal of Micropollutants and Radioactive Substances (INCT-DATREM) in Institute of Chemistry Sao Paulo State University (UNESP) | - |
Descrição: dc.description | CNPq: 143222/2017-1) | - |
Descrição: dc.description | FAPESP: 2014/50945-4 | - |
Idioma: dc.language | en | - |
Relação: dc.relation | Journal of Water Process Engineering | - |
???dc.source???: dc.source | Scopus | - |
Palavras-chave: dc.subject | BTEX | - |
Palavras-chave: dc.subject | Emerging pollutants | - |
Palavras-chave: dc.subject | Magnetite-modified vermiculite | - |
Palavras-chave: dc.subject | Metals | - |
Palavras-chave: dc.subject | Petroleum-produced water | - |
Título: dc.title | Assessment of the improved performance of magnetite-modified vermiculite in the reduction of BTEX and metals, as well as toxicity in petroleum-produced water | - |
Tipo de arquivo: dc.type | livro digital | - |
Aparece nas coleções: | Repositório Institucional - Unesp |
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