REMOVAL OF CYANOBACTERIA WITH DOUBLE FILTRATION UPFLOW.

Authors

  • Bianca Coelho Machado Universidade Federal de Santa Catarina
  • Maurício Luiz Sens Universidade Federal de Santa Catarina

DOI:

https://doi.org/10.18316/425

Keywords:

Potabilization Water, Direct Filtration, Continuous Backwashing Filter, Cyanobacterias

Abstract

Sources water used in water supply have been presenting, increasingly, high levels of contamination by microalgae and cyanobacteria, difficulting the removal of these on the classicals water treatments. The research in question used the treatment by double filtration system as a direct filtration: upflow filter of continuous backwashing and conventional upflow filter, with a constant filtration rate of 150 m³/m²day, aiming, mainly, the removal of microalgae and cyanobacteria. The treatment tested was: addition of the coagulant in the entry of the continuous backwashing filter and addition of the coagulant in the input of the upflow filter. The double filtration system studied has proven efficient for removal the chlorophyll a, removal of about 96% and for removal of cyanobacteria, final removal of 75%; and advantageous in terms of operational services, once it reduced the washings in the second filter, which allows obtaining a filtration period up to 338 h and a large increase in the effective water treatment.

Downloads

Issue

Vol. 6 No. 1 (2012)

Section

Artigos

License

Authors must submit their manuscripts to be published in this journal agree with the following terms:

  1. Authors maintain the copy rights and concede to the journal the right of first publication, with the paper simultaneously licensed under the License Creative Commons attribution that permits the sharing of the paper with recognition of authorship and initial publication in this journal.

  2. Since the articles are presented in this journal of public access, they are of free use, with their own attributions for educational and non-commercial purposes.

 

Licença Creative Commons

The RCA Journal - REVISTA DE CIÊNCIAS AMBIENTAIS in: http://www.revistas.unilasalle.edu.br/index.php/Rbca was licensed with a Creative Commons License Creative Commons - Attribution - Noncommercial 3.0 Not Adapted.