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

Department of Civil and Environmental Engineering

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

18 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 - 2020 Dec

Bibliographical note

Funding Information:
The authors gratefully acknowledge the financial support from Taiwan's Ministry of Science and Technology (MOST 104-2221-E-035-007; MOST 105-2221-E-035 -077 -MY3; MOST 108-2221-E-035 -036 -MY3).

Funding Information:
The authors gratefully acknowledge the financial support from Taiwan’s Ministry of Science and Technology (MOST 104-2221-E-035-007 ; MOST 105-2221-E-035 -077 -MY3 ; MOST 108-2221-E-035 -036 -MY3 ).

Publisher Copyright:
© 2020 Elsevier Ltd

All Science Journal Classification (ASJC) codes

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

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10.1016/j.jwpe.2020.101609

Cite this

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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.",

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 = "Funding Information: The authors gratefully acknowledge the financial support from Taiwan's Ministry of Science and Technology (MOST 104-2221-E-035-007; MOST 105-2221-E-035 -077 -MY3; MOST 108-2221-E-035 -036 -MY3). Funding Information: The authors gratefully acknowledge the financial support from Taiwan{\textquoteright}s Ministry of Science and Technology (MOST 104-2221-E-035-007 ; MOST 105-2221-E-035 -077 -MY3 ; MOST 108-2221-E-035 -036 -MY3 ). Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

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

language = "English",

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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

N1 - Funding Information: The authors gratefully acknowledge the financial support from Taiwan's Ministry of Science and Technology (MOST 104-2221-E-035-007; MOST 105-2221-E-035 -077 -MY3; MOST 108-2221-E-035 -036 -MY3). Funding Information: The authors gratefully acknowledge the financial support from Taiwan’s Ministry of Science and Technology (MOST 104-2221-E-035-007 ; MOST 105-2221-E-035 -077 -MY3 ; MOST 108-2221-E-035 -036 -MY3 ). Publisher Copyright: © 2020 Elsevier Ltd

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.

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Immobilized Chlorella species mixotrophic cultivation at various textile wastewater concentrations

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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