Immobilized Chlorella species mixotrophic cultivation at various textile wastewater concentrations

Jane Yii Wu; Chyi How Lay; Meng Choung Chiong; Kit Wayne Chew; Chin Chao Chen; Shin Yan Wu; Dandan Zhou; Gopalakrishnan Kumar; Pau Loke Show

doi:10.1016/j.jwpe.2020.101609

Immobilized Chlorella species mixotrophic cultivation at various textile wastewater concentrations

Jane Yii Wu, Chyi How Lay^*, Meng Choung Chiong, Kit Wayne Chew, Chin Chao Chen, Shin Yan Wu, Dandan Zhou, Gopalakrishnan Kumar, Pau Loke Show

^*Corresponding author for this work

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

38 Citations (Scopus)

Abstract

Immobilized microalgae have been utilized for various bioprocesses that yield biofuels and high-value products. Various alginate solutions ranging from 0.5 to 5.0 % were investigated to develop microalgae immobilization technology. High intracellular density (3.94–4.89 g/cm³) and compressive strength (447−602 g) immobilized Chlorella vulgaris Wu-G22 (G22) and Chlorella sp. Wu-G23 (G23) microalgae granules with 3.0 % alginate solution could be obtained after 10 days cultivation using textile wastewater. In addition, effective removal of superfluous biological and chemical pollutants was cultured under mixotrophic conditions for immobilized G22 and G23 using textile wastewater after 7 days. Efficiencies of NH₄⁺-N, COD and color removal were all greater than 50 % by using immobilized microalgae G23 with static cultivation. The present study confirmed that microalgal/alginate bio-beads/granular are one of the alternatives for defeating microalgae harvesting issues in larger scale production, where the microalgal cells stick to each other on external surfaces.

Original language	English
Article number	101609
Journal	Journal of Water Process Engineering
Volume	38
DOIs	https://doi.org/10.1016/j.jwpe.2020.101609
Publication status	Published - Dec 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020 Elsevier Ltd

ASJC Scopus Subject Areas

Biotechnology
Safety, Risk, Reliability and Quality
Waste Management and Disposal
Process Chemistry and Technology

Keywords

Chlorella species
Immobilization
Mixotrophic
Pollutant removal
Textile wastewater

Access to Document

10.1016/j.jwpe.2020.101609

Cite this

@article{8981e6ffd65e4899a76006fab5d41e88,

title = "Immobilized Chlorella species mixotrophic cultivation at various textile wastewater concentrations",

abstract = "Immobilized microalgae have been utilized for various bioprocesses that yield biofuels and high-value products. Various alginate solutions ranging from 0.5 to 5.0 % were investigated to develop microalgae immobilization technology. High intracellular density (3.94–4.89 g/cm3) and compressive strength (447−602 g) immobilized Chlorella vulgaris Wu-G22 (G22) and Chlorella sp. Wu-G23 (G23) microalgae granules with 3.0 % alginate solution could be obtained after 10 days cultivation using textile wastewater. In addition, effective removal of superfluous biological and chemical pollutants was cultured under mixotrophic conditions for immobilized G22 and G23 using textile wastewater after 7 days. Efficiencies of NH4+-N, COD and color removal were all greater than 50 % by using immobilized microalgae G23 with static cultivation. The present study confirmed that microalgal/alginate bio-beads/granular are one of the alternatives for defeating microalgae harvesting issues in larger scale production, where the microalgal cells stick to each other on external surfaces.",

keywords = "Chlorella species, Immobilization, Mixotrophic, Pollutant removal, Textile wastewater",

author = "Wu, {Jane Yii} and Lay, {Chyi How} and Chiong, {Meng Choung} and Chew, {Kit Wayne} and Chen, {Chin Chao} and Wu, {Shin Yan} and Dandan Zhou and Gopalakrishnan Kumar and Show, {Pau Loke}",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

month = dec,

doi = "10.1016/j.jwpe.2020.101609",

language = "English",

volume = "38",

journal = "Journal of Water Process Engineering",

issn = "2214-7144",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Immobilized Chlorella species mixotrophic cultivation at various textile wastewater concentrations

AU - Wu, Jane Yii

AU - Lay, Chyi How

AU - Chiong, Meng Choung

AU - Chew, Kit Wayne

AU - Chen, Chin Chao

AU - Wu, Shin Yan

AU - Zhou, Dandan

AU - Kumar, Gopalakrishnan

AU - Show, Pau Loke

PY - 2020/12

Y1 - 2020/12

N2 - Immobilized microalgae have been utilized for various bioprocesses that yield biofuels and high-value products. Various alginate solutions ranging from 0.5 to 5.0 % were investigated to develop microalgae immobilization technology. High intracellular density (3.94–4.89 g/cm3) and compressive strength (447−602 g) immobilized Chlorella vulgaris Wu-G22 (G22) and Chlorella sp. Wu-G23 (G23) microalgae granules with 3.0 % alginate solution could be obtained after 10 days cultivation using textile wastewater. In addition, effective removal of superfluous biological and chemical pollutants was cultured under mixotrophic conditions for immobilized G22 and G23 using textile wastewater after 7 days. Efficiencies of NH4+-N, COD and color removal were all greater than 50 % by using immobilized microalgae G23 with static cultivation. The present study confirmed that microalgal/alginate bio-beads/granular are one of the alternatives for defeating microalgae harvesting issues in larger scale production, where the microalgal cells stick to each other on external surfaces.

AB - Immobilized microalgae have been utilized for various bioprocesses that yield biofuels and high-value products. Various alginate solutions ranging from 0.5 to 5.0 % were investigated to develop microalgae immobilization technology. High intracellular density (3.94–4.89 g/cm3) and compressive strength (447−602 g) immobilized Chlorella vulgaris Wu-G22 (G22) and Chlorella sp. Wu-G23 (G23) microalgae granules with 3.0 % alginate solution could be obtained after 10 days cultivation using textile wastewater. In addition, effective removal of superfluous biological and chemical pollutants was cultured under mixotrophic conditions for immobilized G22 and G23 using textile wastewater after 7 days. Efficiencies of NH4+-N, COD and color removal were all greater than 50 % by using immobilized microalgae G23 with static cultivation. The present study confirmed that microalgal/alginate bio-beads/granular are one of the alternatives for defeating microalgae harvesting issues in larger scale production, where the microalgal cells stick to each other on external surfaces.

KW - Chlorella species

KW - Immobilization

KW - Mixotrophic

KW - Pollutant removal

KW - Textile wastewater

UR - http://www.scopus.com/inward/record.url?scp=85091247260&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85091247260&partnerID=8YFLogxK

U2 - 10.1016/j.jwpe.2020.101609

DO - 10.1016/j.jwpe.2020.101609

M3 - Article

AN - SCOPUS:85091247260

SN - 2214-7144

VL - 38

JO - Journal of Water Process Engineering

JF - Journal of Water Process Engineering

M1 - 101609

ER -

Immobilized Chlorella species mixotrophic cultivation at various textile wastewater concentrations

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

Access to Document

Other files and links

Fingerprint

Cite this