Wastewater treatment by microalgae-bacteria co-culture system

Aim: Microalgae is one of the bioremediation agents in wastewater treatment due to its ability to degrade nutrients and organic compounds. Several studies reported that co-cultivation of microalgae and bacteria, i.e. Microalgae Growth Promoting Bacteria (MGPB) could improve the nutrients removal pro...

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Main Authors:	Samsudin, Amirah, Azmi, Azlin Suhaida, Mohd Nawi, Mohd Nazri, Abdul Halim, Amanatuzzakiah
Format:	Article
Language:	English English English
Published:	Malaysian Society for Microbiology 2018
Subjects:	TP248.13 Biotechnology
Online Access:	http://irep.iium.edu.my/65292/ http://irep.iium.edu.my/65292/ http://irep.iium.edu.my/65292/1/65292_Wastewater%20treatment%20by%20microalgae-bacteria.pdf http://irep.iium.edu.my/65292/7/65292_Wastewater%20treatment%20by%20microalgae-bacteria_SCOPUS.pdf http://irep.iium.edu.my/65292/8/65292_Wastewater%20treatment%20by%20microalgae-bacteria%20co-culture%20system_WOS.pdf

id	iium-65292
recordtype	eprints
spelling	iium-652922019-01-24T08:25:40Z http://irep.iium.edu.my/65292/ Wastewater treatment by microalgae-bacteria co-culture system Samsudin, Amirah Azmi, Azlin Suhaida Mohd Nawi, Mohd Nazri Abdul Halim, Amanatuzzakiah TP248.13 Biotechnology Aim: Microalgae is one of the bioremediation agents in wastewater treatment due to its ability to degrade nutrients and organic compounds. Several studies reported that co-cultivation of microalgae and bacteria, i.e. Microalgae Growth Promoting Bacteria (MGPB) could improve the nutrients removal process. This MGPB helps to degrade complex nutrient compounds into smaller components before being taken up by microalgae. The objective of this study is to investigate the effectiveness of co-cultured (microalgae and bacteria) system compared to axenic microalgae system in the removal of major nutrients (ammonium and phosphorus) and chemical oxygen demand (COD) in synthetic wastewater. Methodology and result: In this study, two different strains of microalgae (Chlorella vulgaris and Scenedesmus quadricauda) were each co-cultured with a MGPB (Azospirillum brasilense) and their effectiveness in the removal of major nutrients and COD were compared. The results show that, the nutrients and COD removal were higher in cocultured system compared to the axenic microalgae under similar cultivation conditions for both microalgae strains. Higher percentage removal was obtained from co-cultured C. vulgaris compared to that from co-cultured S. quadricauda which were 86% and 48%, 44% and 31%, 62% and 35% for ammonium, phosphorus and COD removal respectively. Conclusion, significance and impact of study: The findings of this study demonstrate the potential of the co-culture of C. vulgaris and A. brasilense to be applied in wastewater treatment, specifically replacing the aerobic digestion process in secondary stage of conventional wastewater treatment. This study provides an important insight into developing an efficient and environmental friendly method to treat wastewater by incorporating the green technology in the treatment system. Malaysian Society for Microbiology 2018 Article PeerReviewed application/pdf en http://irep.iium.edu.my/65292/1/65292_Wastewater%20treatment%20by%20microalgae-bacteria.pdf application/pdf en http://irep.iium.edu.my/65292/7/65292_Wastewater%20treatment%20by%20microalgae-bacteria_SCOPUS.pdf application/pdf en http://irep.iium.edu.my/65292/8/65292_Wastewater%20treatment%20by%20microalgae-bacteria%20co-culture%20system_WOS.pdf Samsudin, Amirah and Azmi, Azlin Suhaida and Mohd Nawi, Mohd Nazri and Abdul Halim, Amanatuzzakiah (2018) Wastewater treatment by microalgae-bacteria co-culture system. Malaysian Journal of Microbiology, 14 (2). pp. 131-136. ISSN 1823-8262 E-ISSN 2231-7538 http://mjm.usm.my/uploads/issues/1392/MJM%202018-9-78.pdf
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	TP248.13 Biotechnology
spellingShingle	TP248.13 Biotechnology Samsudin, Amirah Azmi, Azlin Suhaida Mohd Nawi, Mohd Nazri Abdul Halim, Amanatuzzakiah Wastewater treatment by microalgae-bacteria co-culture system
description	Aim: Microalgae is one of the bioremediation agents in wastewater treatment due to its ability to degrade nutrients and organic compounds. Several studies reported that co-cultivation of microalgae and bacteria, i.e. Microalgae Growth Promoting Bacteria (MGPB) could improve the nutrients removal process. This MGPB helps to degrade complex nutrient compounds into smaller components before being taken up by microalgae. The objective of this study is to investigate the effectiveness of co-cultured (microalgae and bacteria) system compared to axenic microalgae system in the removal of major nutrients (ammonium and phosphorus) and chemical oxygen demand (COD) in synthetic wastewater. Methodology and result: In this study, two different strains of microalgae (Chlorella vulgaris and Scenedesmus quadricauda) were each co-cultured with a MGPB (Azospirillum brasilense) and their effectiveness in the removal of major nutrients and COD were compared. The results show that, the nutrients and COD removal were higher in cocultured system compared to the axenic microalgae under similar cultivation conditions for both microalgae strains. Higher percentage removal was obtained from co-cultured C. vulgaris compared to that from co-cultured S. quadricauda which were 86% and 48%, 44% and 31%, 62% and 35% for ammonium, phosphorus and COD removal respectively. Conclusion, significance and impact of study: The findings of this study demonstrate the potential of the co-culture of C. vulgaris and A. brasilense to be applied in wastewater treatment, specifically replacing the aerobic digestion process in secondary stage of conventional wastewater treatment. This study provides an important insight into developing an efficient and environmental friendly method to treat wastewater by incorporating the green technology in the treatment system.
format	Article
author	Samsudin, Amirah Azmi, Azlin Suhaida Mohd Nawi, Mohd Nazri Abdul Halim, Amanatuzzakiah
author_facet	Samsudin, Amirah Azmi, Azlin Suhaida Mohd Nawi, Mohd Nazri Abdul Halim, Amanatuzzakiah
author_sort	Samsudin, Amirah
title	Wastewater treatment by microalgae-bacteria co-culture system
title_short	Wastewater treatment by microalgae-bacteria co-culture system
title_full	Wastewater treatment by microalgae-bacteria co-culture system
title_fullStr	Wastewater treatment by microalgae-bacteria co-culture system
title_full_unstemmed	Wastewater treatment by microalgae-bacteria co-culture system
title_sort	wastewater treatment by microalgae-bacteria co-culture system
publisher	Malaysian Society for Microbiology
publishDate	2018
url	http://irep.iium.edu.my/65292/ http://irep.iium.edu.my/65292/ http://irep.iium.edu.my/65292/1/65292_Wastewater%20treatment%20by%20microalgae-bacteria.pdf http://irep.iium.edu.my/65292/7/65292_Wastewater%20treatment%20by%20microalgae-bacteria_SCOPUS.pdf http://irep.iium.edu.my/65292/8/65292_Wastewater%20treatment%20by%20microalgae-bacteria%20co-culture%20system_WOS.pdf
first_indexed	2023-09-18T21:32:40Z
last_indexed	2023-09-18T21:32:40Z
_version_	1777412614423314432

Wastewater treatment by microalgae-bacteria co-culture system

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