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Functionalized magnetite nanoparticles with Moringa oleifera with potent antibacterial action in wastewater.
Oliveira, Alessandra Marjorie de; Mateus, Gustavo Affonso Pisano; Santos, Tássia Rhuna Tonial Dos; Filho, Benício Alves de Abreu; Gomes, Raquel Guttierres; Bergamasco, Rosangela.
Afiliação
  • Oliveira AM; Center of Biological Sciences, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Brazil.
  • Mateus GAP; Center of Biological Sciences, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Brazil.
  • Santos TRTD; Technology Center, Department of Chemical Engineering, State University of Maringa, Maringa, Brazil.
  • Filho BAA; Health Sciences Center, Department of Basic Health Sciences, State University of Maringa, Maringa, Brazil.
  • Gomes RG; Technology Center, Department of Food Engineering, State University of Maringa, Maringa, Brazil.
  • Bergamasco R; Technology Center, Department of Chemical Engineering, State University of Maringa, Maringa, Brazil.
Environ Technol ; 42(27): 4296-4305, 2021 Nov.
Article em En | MEDLINE | ID: mdl-32272870
Contaminations by Staphylococcus aureus in food industry environments have been extended to industrial Effluent Treatment Plant (ETP). The methodologies used in ETP for bacterial removals and quality parameters adjustment commonly use products toxic to the environment, being mostly inefficient against virulent bacteria such as S. aureus. Seeds of Moringa oleifera Lam. (MO) have potential to be used in ETP as an alternative to harmful products, as it has both the ability to regulate the physicochemical parameters of water and has antibacterial action. Functionalization of MO with magnetite magnetic nano particles (Fe3O4) at nano scale focusing on coagulation and flocculation of wastewater has been gaining prominence. Therefore, the present study evaluated the potential use of the magnetic coagulant MO-Fe3O4 in the elimination of S. aureus in synthetic dairy effluent; concomitantly sought to adjust the quality levels of physicochemical parameters. MO-Fe3O4 added to synthetic dairy effluent at different concentrations amounted to 16 treatments, which were evaluated for removal of color, turbidity, UV254nm and S. aureus on the effluent surface and sludge after 30 min of sedimentation. The results confirmed the efficient elimination of S. aureus simultaneously with a significant reduction of the physicochemical values, with constant efficiency up to 30 min. Scanning electron microscopy images confirm the removal of S. aureus on the effluent surface and sludge. Thus, this study was able to present a natural coagulant capable of remove bacteria and adjust the quality levels of the effluent after 10 min of sedimentation, making this biotechnological innovation highly applicable to ETP.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Purificação da Água / Moringa oleifera / Nanopartículas de Magnetita Idioma: En Revista: Environ Technol Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
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XML
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Purificação da Água / Moringa oleifera / Nanopartículas de Magnetita Idioma: En Revista: Environ Technol Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido