Effect of salinity on mixed microalgae grown in anaerobic liquid digestate

Hande Ermis; Mahmut Altinbas

doi:10.1111/wej.12580

Effect of salinity on mixed microalgae grown in anaerobic liquid digestate

Hande Ermis^*, Mahmut Altinbas

^*Corresponding author for this work

Department of Environmental Engineering

Istanbul Technical University

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

9 Citations (Scopus)

Abstract

In this study, mixed microalgal culture dominated by Chlorella vulgaris and Scenedesmus armatus was grown in Anaerobic Liquid Digestate (ALD) at different NaCl concentrations ranging between 0 and 100 mM. Highest lipid and carbohydrate amounts were observed as 38.4 and 36.2%, respectively, when the salinity was 50 mM NaCl. However, the protein content was drastically decreased to 12.8% with increased NaCl concentration. Furthermore, the algal biomass was subsequently decreased along with the total chlorophyll amount with increased NaCl concentration. Algal species showed diverse response to salinity stress and demonstrated a cost-effective approach towards the cultivation of mixed microalgae within digestate and provided insight that ALD and/or other wastewaters can be diluted with seawater instead of tap water in the future studies. This study could be further converted into biofuels because of an increase in lipid content along with the digestate treatment, which will help to valorize ALD and bring into economy.

Original language	English
Pages (from-to)	820-830
Number of pages	11
Journal	Water and Environment Journal
Volume	34
Issue number	S1
DOIs	https://doi.org/10.1111/wej.12580
Publication status	Published - Dec 2020

Bibliographical note

Publisher Copyright:
© 2020 CIWEM

Funding

Financial support was received from Istanbul Technical University Scientific Research Projects Coordination Unit (BAP). Project Number: 41563, Year: 2018. The authors thank Aycan Arslan, Doğukan Tunay, Ece Polat, Öznur Yıldırım, Romina Sadrazaath and Ruken Zilan Arslan for their help and support. Financial support was received from Istanbul Technical University Scientific Research Projects Coordination Unit (BAP). Project Number: 41563, Year: 2018. The authors thank Aycan Arslan, Do?ukan Tunay, Ece Polat, ?znur Y?ld?r?m, Romina Sadrazaath and Ruken Zilan Arslan for their help and support.

Funders	Funder number
Istanbul Technical University Scientific Research Projects Coordination Unit
British Association for Psychopharmacology	41563

Keywords

anaerobic liquid digestate
biochemical composition
fatty acids
mixed microalgae
salinity stress

UN SDGs

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

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10.1111/wej.12580

Cite this

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abstract = "In this study, mixed microalgal culture dominated by Chlorella vulgaris and Scenedesmus armatus was grown in Anaerobic Liquid Digestate (ALD) at different NaCl concentrations ranging between 0 and 100 mM. Highest lipid and carbohydrate amounts were observed as 38.4 and 36.2%, respectively, when the salinity was 50 mM NaCl. However, the protein content was drastically decreased to 12.8% with increased NaCl concentration. Furthermore, the algal biomass was subsequently decreased along with the total chlorophyll amount with increased NaCl concentration. Algal species showed diverse response to salinity stress and demonstrated a cost-effective approach towards the cultivation of mixed microalgae within digestate and provided insight that ALD and/or other wastewaters can be diluted with seawater instead of tap water in the future studies. This study could be further converted into biofuels because of an increase in lipid content along with the digestate treatment, which will help to valorize ALD and bring into economy.",

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T1 - Effect of salinity on mixed microalgae grown in anaerobic liquid digestate

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AU - Altinbas, Mahmut

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N2 - In this study, mixed microalgal culture dominated by Chlorella vulgaris and Scenedesmus armatus was grown in Anaerobic Liquid Digestate (ALD) at different NaCl concentrations ranging between 0 and 100 mM. Highest lipid and carbohydrate amounts were observed as 38.4 and 36.2%, respectively, when the salinity was 50 mM NaCl. However, the protein content was drastically decreased to 12.8% with increased NaCl concentration. Furthermore, the algal biomass was subsequently decreased along with the total chlorophyll amount with increased NaCl concentration. Algal species showed diverse response to salinity stress and demonstrated a cost-effective approach towards the cultivation of mixed microalgae within digestate and provided insight that ALD and/or other wastewaters can be diluted with seawater instead of tap water in the future studies. This study could be further converted into biofuels because of an increase in lipid content along with the digestate treatment, which will help to valorize ALD and bring into economy.

AB - In this study, mixed microalgal culture dominated by Chlorella vulgaris and Scenedesmus armatus was grown in Anaerobic Liquid Digestate (ALD) at different NaCl concentrations ranging between 0 and 100 mM. Highest lipid and carbohydrate amounts were observed as 38.4 and 36.2%, respectively, when the salinity was 50 mM NaCl. However, the protein content was drastically decreased to 12.8% with increased NaCl concentration. Furthermore, the algal biomass was subsequently decreased along with the total chlorophyll amount with increased NaCl concentration. Algal species showed diverse response to salinity stress and demonstrated a cost-effective approach towards the cultivation of mixed microalgae within digestate and provided insight that ALD and/or other wastewaters can be diluted with seawater instead of tap water in the future studies. This study could be further converted into biofuels because of an increase in lipid content along with the digestate treatment, which will help to valorize ALD and bring into economy.

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Effect of salinity on mixed microalgae grown in anaerobic liquid digestate

Abstract

Bibliographical note

Funding

Keywords

UN SDGs

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