Dosage effect of cationic polymers on the flocculation efficiency of the marine microalga Neochloris oleoabundans

G.P. 't Lam; E.K. Zegeye; M.H. Vermuë; D.M.M. Kleinegris; M.H.M. Eppink; R.H. Wijffels; G. Olivieri

doi:10.1016/j.biortech.2015.09.097

Dosage effect of cationic polymers on the flocculation efficiency of the marine microalga Neochloris oleoabundans

G.P. 't Lam^*, E.K. Zegeye, M.H. Vermuë, D.M.M. Kleinegris, M.H.M. Eppink, R.H. Wijffels, G. Olivieri

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

21 Citations (Scopus)

Abstract

A mechanistic mathematical model was developed to predict the performance of cationic polymers for flocculating salt water cultivated microalgae. The model was validated on experiments carried out with Neochloris oleoabundans and three different commercial flocculants (Zetag 7557®, Synthofloc 5080H® and SNF H536®). For a wide range of biomass concentrations (0.49-1.37gL-1) and flocculant dosages (0-150mgL-1) the model simulations predicted well the optimal flocculant-to-biomass ratio between 43 and 109mgflocculant/gbiomass. At optimum conditions biomass recoveries varied between 88% and 99%. The cost of the usage of commercial available flocculants is estimated to range between 0.15$/kgbiomass and 0.49$/kgbiomass.

Original language	English
Pages (from-to)	797-802
Journal	Bioresource Technology
Volume	198
DOIs	https://doi.org/10.1016/j.biortech.2015.09.097
Publication status	Published - 2015

Keywords

Cationic polymers
Flocculation
Harvesting
Marine microalgae
Mechanism

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biortech.2015.09.097

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@article{adeb76b2b2d145fd953b20e67f5531f1,

title = "Dosage effect of cationic polymers on the flocculation efficiency of the marine microalga Neochloris oleoabundans",

abstract = "A mechanistic mathematical model was developed to predict the performance of cationic polymers for flocculating salt water cultivated microalgae. The model was validated on experiments carried out with Neochloris oleoabundans and three different commercial flocculants (Zetag 7557{\textregistered}, Synthofloc 5080H{\textregistered} and SNF H536{\textregistered}). For a wide range of biomass concentrations (0.49-1.37gL-1) and flocculant dosages (0-150mgL-1) the model simulations predicted well the optimal flocculant-to-biomass ratio between 43 and 109mgflocculant/gbiomass. At optimum conditions biomass recoveries varied between 88% and 99%. The cost of the usage of commercial available flocculants is estimated to range between 0.15$/kgbiomass and 0.49$/kgbiomass.",

keywords = "Cationic polymers, Flocculation, Harvesting, Marine microalgae, Mechanism",

author = "{'t Lam}, G.P. and E.K. Zegeye and M.H. Vermu{\"e} and D.M.M. Kleinegris and M.H.M. Eppink and R.H. Wijffels and G. Olivieri",

year = "2015",

doi = "10.1016/j.biortech.2015.09.097",

language = "English",

volume = "198",

pages = "797--802",

journal = "Bioresource Technology",

issn = "0960-8524",

publisher = "Elsevier",

}

TY - JOUR

T1 - Dosage effect of cationic polymers on the flocculation efficiency of the marine microalga Neochloris oleoabundans

AU - 't Lam, G.P.

AU - Zegeye, E.K.

AU - Vermuë, M.H.

AU - Kleinegris, D.M.M.

AU - Eppink, M.H.M.

AU - Wijffels, R.H.

AU - Olivieri, G.

PY - 2015

Y1 - 2015

N2 - A mechanistic mathematical model was developed to predict the performance of cationic polymers for flocculating salt water cultivated microalgae. The model was validated on experiments carried out with Neochloris oleoabundans and three different commercial flocculants (Zetag 7557®, Synthofloc 5080H® and SNF H536®). For a wide range of biomass concentrations (0.49-1.37gL-1) and flocculant dosages (0-150mgL-1) the model simulations predicted well the optimal flocculant-to-biomass ratio between 43 and 109mgflocculant/gbiomass. At optimum conditions biomass recoveries varied between 88% and 99%. The cost of the usage of commercial available flocculants is estimated to range between 0.15$/kgbiomass and 0.49$/kgbiomass.

AB - A mechanistic mathematical model was developed to predict the performance of cationic polymers for flocculating salt water cultivated microalgae. The model was validated on experiments carried out with Neochloris oleoabundans and three different commercial flocculants (Zetag 7557®, Synthofloc 5080H® and SNF H536®). For a wide range of biomass concentrations (0.49-1.37gL-1) and flocculant dosages (0-150mgL-1) the model simulations predicted well the optimal flocculant-to-biomass ratio between 43 and 109mgflocculant/gbiomass. At optimum conditions biomass recoveries varied between 88% and 99%. The cost of the usage of commercial available flocculants is estimated to range between 0.15$/kgbiomass and 0.49$/kgbiomass.

KW - Cationic polymers

KW - Flocculation

KW - Harvesting

KW - Marine microalgae

KW - Mechanism

U2 - 10.1016/j.biortech.2015.09.097

DO - 10.1016/j.biortech.2015.09.097

M3 - Article

SN - 0960-8524

VL - 198

SP - 797

EP - 802

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Dosage effect of cationic polymers on the flocculation efficiency of the marine microalga Neochloris oleoabundans

Abstract

Keywords

UN SDGs

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