FN Archimer Export Format
PT J
TI Immersed hollow fibres microfiltration (MF) for removing undesirable micro-algae and protecting semi-closed aquaculture basins
BT 
AF CASTAING, Jean-Baptiste
   MASSE, A.
   SECHET, Veronique
   SABIRI, N. -E.
   PONTIE, M.
   HAURE, Joel
   JAOUEN, P.
AS 1:1,2;2:1;3:3;4:1;5:1;6:2;7:1;
FF 1:;2:;3:PDG-RBE-EMP-PHYC;4:;5:;6:PDG-RBE-AGSAE-LGP;7:;
C1 Univ Nantes, LUNAM Univ, CNRS, GEPEA UMR 6144, F-44602 St Nazaire, France
   IFREMER, Lab Phycotoxines, Ctr Nantes, F-44311 Nantes, France
   IFREMER, Lab Conchylicole Pays de la Loire, F-85230 Polder Des Champs, Bouin, France
C2 UNIV NANTES, FRANCE
   IFREMER, FRANCE
   IFREMER, FRANCE
SI BOUIN
   NANTES
SE PDG-DOP-DCN-AGSAE-LGP
   PDG-RBE-EMP-PHYC
   PDG-RBE-AGSAE-LGP
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 2.59
TC 50
UR https://archimer.ifremer.fr/doc/00041/15246/14016.pdf
LA English
DT Article
DE ;Red tide;Dinoflagellate;Microfiltration;Membrane fouling mechanisms;Semi-closed aquaculture basins
AB In this study, an original use of immersed microfiltration membranes (mean pore size equal to 0.2 mu m) is investigated for the total removal of toxic dinoflagellates from seawater. Using a membrane autopsy and fouling model approach and the use of fouling indexes (called Pore Blocking Index, Pore Constriction Index and Cake Filtration Index), three dinoflagellate suspensions (Heterocapsa triquetra, Alexandrium minutum and Prorocentrum lima) have been microfiltered in order to study the influence of micro-algal species and its concentrations (1,000 and 30,000 cells/mL) on filtration yield and membrane fouling mechanisms. Results showed that all micro-algae have been retained after 180 min of microfiltration. At 30,000 cells/mL, permeate fluxes declined rapidly and an internal fouling occurred at the beginning of microfiltrations followed by a cake deposition. At 1,000 cells/mL, flux declined slowly and was mainly due to an internal fouling. For a given micro-algae concentration, the filtration behaviour and fouling behaviour can be very different based on the micro-algae species. The dissolved organic substances and particulate size distribution are important factors affecting internal but also external fouling. SEM analyses and fouling indexes are useful tools, simple to implement, and allow the study of membrane fouling and membrane process optimization. (C) 2011 Elsevier B.V. All rights reserved.
PY 2011
PD AUG
SO Desalination
SN 0011-9164
PU Elsevier Science Bv
VL 276
IS 1-3
UT 000293312800053
BP 386
EP 396
DI 10.1016/j.desal.2011.03.081
ID 15246
ER

EF