FN Archimer Export Format
PT J
TI Separation efficiency of a vacuum gas lift for microalgae harvesting
BT 
AF BARRUT, Bertrand
   BLANCHETON, Jean-Paul
   MULLER-FEUGA, Arnaud
   RENE, Francois
   NARVAEZ, Cesar
   CHAMPAGNE, Jean-Yves
   GRASMICK, Alain
AS 1:1;2:2;3:3;4:2;5:2,4;6:4;7:5;
FF 1:;2:PDG-RBE-BOME-LALR;3:;4:PDG-RBE-BOME-LALR;5:;6:;7:;
C1 Stn Marine Port, ARDA, Le Port 97420, Reunion.
   IFREMER, Stn Aquaculture Expt, Lab Rech Piscicole Mediterranee, F-34250 Palavas Les Flots, France.
   Microphyt, F-34670 Baillargues, France.
   Univ Lyon 1, Ecole Cent Lyon, LMFA, INSA Lyon,ECL,UMR CNRS 5509, F-69621 Villeurbanne, France.
   Univ Montpellier 2, Inst Europeen Membranes, UMR CNRS 5635, F-34095 Montpellier 05, France.
C2 ARDA LA REUNION, FRANCE
   IFREMER, FRANCE
   MICROPHYT, FRANCE
   UNIV LYON, FRANCE
   UNIV MONTPELLIER, FRANCE
SI PALAVAS
SE PDG-RBE-BOME-LALR
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 5.039
TC 24
UR https://archimer.ifremer.fr/doc/00130/24107/22369.pdf
LA English
DT Article
DE ;Microalgae;Foam;Flotation;Vacuum gas lift;Harvesting efficiency
AB Low-energy and low-cost separation of microalgae from water is important to the economics of microalgae harvesting and processing. Flotation under vacuum using a vacuum gas lift for microalgae harvesting was investigated for different airflow rates, bubble sizes, salinities and harvest volumes. Harvesting efficiency (HE) and concentration factor (CF) of the vacuum gas lift increased by around 50% when the airflow rate was reduced from 20 to 10 L min(-1). Reduced bubble size multiplied HE and CF 10 times when specific microbubble diffusers were used or when the salinity of the water was increased from 0 parts per thousand to 40 parts per thousand. The reduction in harvest volume from 100 to 1 L increased the CF from 10 to 130. An optimized vacuum gas lift could allow partial microalgae harvesting using less than 0.2 kWh kg(-1) DW, thus reducing energy costs 10-100 times compared to complete harvesting processes, albeit at the expense of a less concentrated biomass harvest. (C) 2012 Elsevier Ltd. All rights reserved.
PY 2013
PD JAN
SO Bioresource Technology
SN 0960-8524
PU Elsevier Sci Ltd
VL 128
UT 000315545800033
BP 235
EP 240
DI 10.1016/j.biortech.2012.10.056
ID 24107
ER

EF