Enhancement of Chlorella vulgaris harvesting via the electro-coagulation-flotation (ECF) method

Y. K. Wong; Y. H. Ho; H. M. Leung; K. C. Ho; Y. H. Yau; Kin Lam YUNG

doi:10.1007/s11356-016-7856-x

Enhancement of Chlorella vulgaris harvesting via the electro-coagulation-flotation (ECF) method

Y. K. Wong, Y. H. Ho, H. M. Leung, K. C. Ho, Y. H. Yau, Kin Lam YUNG^*

^*Corresponding author for this work

Department of Biology

Research output: Contribution to journal › Journal article › peer-review

12 Citations (Scopus)

Abstract

This article explores the potential of using an electro-coagulation-flotation (ECF) harvester to allow flotation of microalgae cells for surface harvesting. A response surface methodology (RSM) model was used to optimize ECF harvesting by adjusting electrode plate material, electrode plate number, charge of the electrodes, electrolyte concentration, and pH value of the culture solution. The result revealed that three aluminum electrode plates (one anode and two cathodes), brine solution (8 g/L), and acidity (pH = 4) of culture solution (optimized ECF harvester) The highest flocculant concentration was measured at 2966 mg/L after 60 min and showed a 79.8 % increase of flocculation concentration. Such results can provide a basis for designing a large-scale microalgae harvester for commercial use in the future.

Original language	English
Pages (from-to)	9102-9110
Number of pages	9
Journal	Environmental Science and Pollution Research
Volume	24
Issue number	10
Early online date	30 Dec 2016
DOIs	https://doi.org/10.1007/s11356-016-7856-x
Publication status	Published - Apr 2017

Scopus Subject Areas

Environmental Chemistry
Pollution
Health, Toxicology and Mutagenesis

User-Defined Keywords

Chlorella vulgaris
Electro-coagulation-flotation
Harvesting
Optimization

Access to Document

10.1007/s11356-016-7856-x

Cite this

@article{83cc12f821984d4b807f1b6bcac54779,

title = "Enhancement of Chlorella vulgaris harvesting via the electro-coagulation-flotation (ECF) method",

abstract = "This article explores the potential of using an electro-coagulation-flotation (ECF) harvester to allow flotation of microalgae cells for surface harvesting. A response surface methodology (RSM) model was used to optimize ECF harvesting by adjusting electrode plate material, electrode plate number, charge of the electrodes, electrolyte concentration, and pH value of the culture solution. The result revealed that three aluminum electrode plates (one anode and two cathodes), brine solution (8 g/L), and acidity (pH = 4) of culture solution (optimized ECF harvester) The highest flocculant concentration was measured at 2966 mg/L after 60 min and showed a 79.8 % increase of flocculation concentration. Such results can provide a basis for designing a large-scale microalgae harvester for commercial use in the future.",

keywords = "Chlorella vulgaris, Electro-coagulation-flotation, Harvesting, Optimization",

author = "Wong, {Y. K.} and Ho, {Y. H.} and Leung, {H. M.} and Ho, {K. C.} and Yau, {Y. H.} and YUNG, {Kin Lam}",

year = "2017",

month = apr,

doi = "10.1007/s11356-016-7856-x",

language = "English",

volume = "24",

pages = "9102--9110",

journal = "Environmental Science and Pollution Research",

issn = "0944-1344",

publisher = "Springer Science + Business Media",

number = "10",

}

TY - JOUR

T1 - Enhancement of Chlorella vulgaris harvesting via the electro-coagulation-flotation (ECF) method

AU - Wong, Y. K.

AU - Ho, Y. H.

AU - Leung, H. M.

AU - Ho, K. C.

AU - Yau, Y. H.

AU - YUNG, Kin Lam

PY - 2017/4

Y1 - 2017/4

N2 - This article explores the potential of using an electro-coagulation-flotation (ECF) harvester to allow flotation of microalgae cells for surface harvesting. A response surface methodology (RSM) model was used to optimize ECF harvesting by adjusting electrode plate material, electrode plate number, charge of the electrodes, electrolyte concentration, and pH value of the culture solution. The result revealed that three aluminum electrode plates (one anode and two cathodes), brine solution (8 g/L), and acidity (pH = 4) of culture solution (optimized ECF harvester) The highest flocculant concentration was measured at 2966 mg/L after 60 min and showed a 79.8 % increase of flocculation concentration. Such results can provide a basis for designing a large-scale microalgae harvester for commercial use in the future.

AB - This article explores the potential of using an electro-coagulation-flotation (ECF) harvester to allow flotation of microalgae cells for surface harvesting. A response surface methodology (RSM) model was used to optimize ECF harvesting by adjusting electrode plate material, electrode plate number, charge of the electrodes, electrolyte concentration, and pH value of the culture solution. The result revealed that three aluminum electrode plates (one anode and two cathodes), brine solution (8 g/L), and acidity (pH = 4) of culture solution (optimized ECF harvester) The highest flocculant concentration was measured at 2966 mg/L after 60 min and showed a 79.8 % increase of flocculation concentration. Such results can provide a basis for designing a large-scale microalgae harvester for commercial use in the future.

KW - Chlorella vulgaris

KW - Electro-coagulation-flotation

KW - Harvesting

KW - Optimization

UR - http://www.scopus.com/inward/record.url?scp=85007425673&partnerID=8YFLogxK

U2 - 10.1007/s11356-016-7856-x

DO - 10.1007/s11356-016-7856-x

M3 - Journal article

C2 - 28039627

AN - SCOPUS:85007425673

SN - 0944-1344

VL - 24

SP - 9102

EP - 9110

JO - Environmental Science and Pollution Research

JF - Environmental Science and Pollution Research

IS - 10

ER -

Enhancement of Chlorella vulgaris harvesting via the electro-coagulation-flotation (ECF) method

Abstract

Scopus Subject Areas

User-Defined Keywords

Access to Document

Other files and links

Fingerprint

Cite this