Biofilms formation in nanofiltration membranes

Autores

  • Edna Teresa Ruas Bastos Instituto de Engenharia Nuclear
  • Francisca P. F. França Escola de Química - UFRJ
  • Renata Oliveira da Rocha Calixto Escola de Química - UFRJ
  • Virgínia Carmen Rocha Bezerra Escola de Química - UFRJ
  • Priscila Martins da Rocha Escola de Química
  • Celina C.R. Barbosa Instituto de Engenharia Nuclear

Palavras-chave:

nanofiltration membrane, biofouling, biocide, sulfate reducing bacteria, seawater

Resumo

 The objective of this work was to study the formation of biofouling on the surface of commercial nanofiltration membrane (Osmonics / GE) and surface membrane synthesized in our laboratory. The study was conducted in permeation system with filtration cell with tangential displacement of 15 bar for 8 days flow. DBNPA ((2,2-dibromo-3-nitrilopropionamide) was used as a biocide agent, and an anti-fouling, in concentrations of 5 and 300 ppm, respectively, added to the water coming from the Beach Sea Galleon, RJ .The results demonstrated that there was no change in the flow and rejection of sulphate ions, even in the presence of anti-fouling. The count of aerobic, anaerobic and BRS (sulfate reducing bacteria) in seawater before and after using the DBNPA showed efficiency in controlling these groups of microorganisms and biofouling microbial consortium consisting of the existing in seawater.

Biografia do Autor

Edna Teresa Ruas Bastos, Instituto de Engenharia Nuclear

SETMQ - pesquisa, desenvolvimento e caracterização de materiais

Referências

MULDER, M. Basic principles of membrane technology, Dordrecht: Kluwer Academic, 1991. 363 p.

BANNOUD, A. H. Elimination of hardness and sulphate from water by Nanofiltration. Desalination, Amsterdam, v. 137, n. 1/3, p. 133-139, mai. 2001.

Capa Progress Report 2015-2017

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Arquivos adicionais

Publicado

2021-07-08

Como Citar

Ruas Bastos, E. T., P. F. França, F., Oliveira da Rocha Calixto, R., Rocha Bezerra, V. C., Martins da Rocha, P., & C.R. Barbosa, C. (2021). Biofilms formation in nanofiltration membranes. Instituto De Engenharia Nuclear: Progress Report, (3), 118. Recuperado de https://revistas.ien.gov.br/index.php/ienprogressreport/article/view/307

Edição

n. 3 (2018): IEN - Progress Report 2015-2017 n.3

Seção

Develop. and charact. of Functional and Structural Materials in Nuclear Industry

Licença

Copyright (c) 2018 Edna Teresa Ruas Bastos, Francisca P. F. França, Renata Oliveira da Rocha Calixto, Virgínia Carmen Rocha Bezerra, Priscila Martins da Rocha, Celina C.R. Barbosa

Creative Commons License

Este trabalho está licenciado sob uma licença Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.