Data/hora: 17/06/2024 06:00:40

Provedor de dados: | 5
País: | France
Título: | Impact of granular filtration on ultrafiltration membrane performance as pre-treatment to seawater desalination in presence of algal blooms
Autores: | Sabiri, Nour-eddine; Sechet, Veronique; Jaouen, Pascal; Pontie, Maxime; Masse, Anthony; Plantier, Severine.
Data: | 2018-06
Ano: | 2018
Palavras-chave: | Algal bloom; Fouling; Granular filtration; Pre-treatment; Seawater; Ultrafiltration.
Resumo: | To mitigate fouling of the ultrafiltration (UF) membrane and improve permeate quality, we coupled granular filters (GF) with UF membrane as a pre-treatment for reconstituted seawater in the presence of algal bloom. Mono and bilayer granular filtrations were led at a mean velocity of 10 m h(-1) over a 7-hour period. Both GF gave the same algal cell retention rate (similar to 63%) after 7 hours of filtration. Turbidity reduction rate was 50% for the monolayer filter and 75% for the bilayer filter. Resulting organic matter removal rate was 10% for the monolayer filter and 35% for the bilayer filter. Dissolved organic carbon removal was low (20%) with the bilayer filter and non-existent with the monolayer filter. GF-coupled UF reduced humic acids in the permeate (20%) compared with UF alone. Peak pressure of 3 bars was reached at the end of 30 minutes of UF in both direct UF or UF after monolayer GF. The filtrate from the bilayer GF enables UF over a longer period (7 hours).
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00442/55315/56845.pdf

DOI:10.2166/wrd.2017.114

http://archimer.ifremer.fr/doc/00442/55315/

Editor: | Iwa Publishing
Formato: | application/pdf
Fonte: | Journal Of Water Reuse And Desalination (2220-1319) (Iwa Publishing), 2018-06 , Vol. 8 , N. 2 , P. 262-277

Fonte:

2018 The Authors This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (CC BY-NC-ND 4.0), which permits copying and redistribution for non-commercial purposes with no derivatives, provided the original work is properly cited (http://creativecommons.org/licenses/by-nc-nd/4.0/)

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