Record number :
1937718
Title of article :
Cationic polymers for successful flocculation of marine microalgae
Author/Authors :
‘t Lam، نويسنده , , G.P. and Vermuë، نويسنده , , M.H. and Olivieri، نويسنده , , Paul G. and van den Broek، نويسنده , , L.A.M. and Barbosa، نويسنده , , M.J. and Eppink، نويسنده , , M.H.M. and Wijffels، نويسنده , , R.H. and Kleinegris، نويسنده , , D.M.M.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2014
Pages :
4
From page :
804
To page :
807
Abstract :
Flocculation of microalgae is a promising technique to reduce the costs and energy required for harvesting microalgae. Harvesting marine microalgae requires suitable flocculants to induce the flocculation under marine conditions. This study demonstrates that cationic polymeric flocculants can be used to harvest marine microalgae. Different organic flocculants were tested to flocculate Phaeodactylum tricornutum and Neochloris oleoabundans grown under marine conditions. Addition of 10 ppm of the commercial available flocculants Zetag 7557 and Synthofloc 5080H to P. tricornutum showed a recovery of, respectively, 98% ± 2.0 and 94% ± 2.9 after flocculation followed by 2 h sedimentation. Using the same flocculants and dosage for harvesting N. oleoabundans resulted in a recovery of 52% ± 1.5 and 36% ± 11.3. This study shows that cationic polymeric flocculants are a viable option to pre-concentrate marine cultivated microalgae via flocculation prior to further dewatering.
Keywords :
Microalgae , Biorefinery , Harvesting , Flocculation
Journal title :
Bioresource Technology
Journal title :
Bioresource Technology
Serial Year :
2014
Link To Document :
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