Cationic polymers for successful flocculation of marine microalgae

G. P. 't Lam; M. H. Vermue; G. Olivieri; L. A. M. van den Broek; M. J. Barbosa; M. H. M. Eppink; R. H. Wijffels; D. M. M. Kleinegris

doi:10.1016/j.biortech.2014.07.070

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Cationic polymers for successful flocculation of marine microalgae

Journal article

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Peer reviewed

Cationic polymers for successful flocculation of marine microalgae

G. P. 't Lam, M. H. Vermue, G. Olivieri, L. A. M. van den Broek, M. J. Barbosa, M. H. M. Eppink, R. H. Wijffels and D. M. M. Kleinegris

Bioresource technology, Vol.169, pp.804-807

10/01/2014

DOI: 10.1016/j.biortech.2014.07.070

PMID: 25113884

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https://research.wur.nl/en/publications/cationic-polymers-for-successful-flocculation-of-marine-microalgaView

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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. (C) 2014 Elsevier Ltd. All rights reserved.

Agricultural Engineering

Agriculture

Biotechnology & Applied Microbiology

Energy & Fuels

Life Sciences & Biomedicine

Science & Technology

Technology

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Title: Subtitle: Cationic polymers for successful flocculation of marine microalgae
Creators: G. P. 't Lam - Wageningen Univ, AlgaePARC, NL-6700 AA Wageningen, Netherlands
M. H. Vermue - Wageningen University & Research
G. Olivieri - Wageningen University & Research
L. A. M. van den Broek - Wageningen University & Research
M. J. Barbosa - AlgaePARC, Wageningen UR Food & Biobased Res, NL-6700 AA Wageningen, Netherlands
M. H. M. Eppink - Wageningen University & Research
R. H. Wijffels - Wageningen University & Research
D. M. M. Kleinegris - Wageningen University & Research
Resource Type: Journal article
Publication Details: Bioresource technology, Vol.169, pp.804-807
DOI: 10.1016/j.biortech.2014.07.070
PMID: 25113884
NLM abbreviation: Bioresour Technol
ISSN: 0960-8524
eISSN: 1873-2976
Publisher: Elsevier
Number of pages: 4
Grant note: TKIBE01009 / Netherlands' Ministry of Economic Affairs in the framework of the TKI BioBased Economy 268164 / European Union's Seventh Programme for research, technological development and demonstration EU project InteSusAl
Language: English
Date published: 10/01/2014
Academic Unit: International Programs; Spanish and Portuguese
Record Identifier: 9984397913902771

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