Cationic polymers for successful flocculation of marine microalgae

Research output: Contribution to journalArticleAcademicpeer-review

31 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)804-807
JournalBioresource Technology
Volume169
DOIs
Publication statusPublished - 2014

Fingerprint

Flocculation
flocculation
Polymers
polymer
Recovery
Dewatering
Sedimentation
dewatering
flocculant
sedimentation
Costs
cost
energy

Keywords

  • phaeodactylum-tricornutum
  • biochemical-composition
  • biomass production
  • recovery
  • chitosan
  • cultures
  • biofuels
  • algae

Cite this

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title = "Cationic polymers for successful flocculation of marine microalgae",
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 = "phaeodactylum-tricornutum, biochemical-composition, biomass production, recovery, chitosan, cultures, biofuels, algae",
author = "{'t Lam}, G.P. and M.H. Vermu{\"e} and G. Olivieri and {van den Broek}, L.A.M. and M.J. Barbosa and M.H.M. Eppink and R.H. Wijffels and D.M.M. Kleinegris",
year = "2014",
doi = "10.1016/j.biortech.2014.07.070",
language = "English",
volume = "169",
pages = "804--807",
journal = "Bioresource Technology",
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publisher = "Elsevier",

}

Cationic polymers for successful flocculation of marine microalgae. / 't Lam, G.P.; Vermuë, M.H.; Olivieri, G.; van den Broek, L.A.M.; Barbosa, M.J.; Eppink, M.H.M.; Wijffels, R.H.; Kleinegris, D.M.M.

In: Bioresource Technology, Vol. 169, 2014, p. 804-807.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Cationic polymers for successful flocculation of marine microalgae

AU - 't Lam, G.P.

AU - Vermuë, M.H.

AU - Olivieri, G.

AU - van den Broek, L.A.M.

AU - Barbosa, M.J.

AU - Eppink, M.H.M.

AU - Wijffels, R.H.

AU - Kleinegris, D.M.M.

PY - 2014

Y1 - 2014

N2 - 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.

AB - 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.

KW - phaeodactylum-tricornutum

KW - biochemical-composition

KW - biomass production

KW - recovery

KW - chitosan

KW - cultures

KW - biofuels

KW - algae

U2 - 10.1016/j.biortech.2014.07.070

DO - 10.1016/j.biortech.2014.07.070

M3 - Article

VL - 169

SP - 804

EP - 807

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

ER -