Sewage treatment plant sludge: a source of potential microorganism for citric acid production

This research emphasizes on the utilization of Sewage Treatment Plant (STP) sludge, which is an inexpensive and easily available raw material and a good source for growth of microorganisms because it has enough nutrients and trace elements. This can be considered as an alternative cost effective sol...

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Main Authors:	Jamal, Parveen, Alam, Md. Zahangir, Ramlan, M., Salleh, M., M. Akib, Munirah
Format:	Article
Language:	English
Published:	Science Publications 2005
Subjects:	QR Microbiology TA164 Bioengineering TA170 Environmental engineering TP248.13 Biotechnology
Online Access:	http://irep.iium.edu.my/9730/ http://irep.iium.edu.my/9730/ http://irep.iium.edu.my/9730/ http://irep.iium.edu.my/9730/1/Sewage_Treatment_Plant_Sludge.pdf

id	iium-9730
recordtype	eprints
spelling	iium-97302013-07-19T04:19:36Z http://irep.iium.edu.my/9730/ Sewage treatment plant sludge: a source of potential microorganism for citric acid production Jamal, Parveen Alam, Md. Zahangir Ramlan, M. Salleh, M. M. Akib, Munirah QR Microbiology TA164 Bioengineering TA170 Environmental engineering TP248.13 Biotechnology This research emphasizes on the utilization of Sewage Treatment Plant (STP) sludge, which is an inexpensive and easily available raw material and a good source for growth of microorganisms because it has enough nutrients and trace elements. This can be considered as an alternative cost effective solution for waste management in addition to production of a value added product citric acid, one of the important chemicals used in various industrial processes. The isolation of filamentous fungi especially Aspergillus was done from STP sludge for better adaptability. Six strains of Aspergillus were isolated from STP sludge and identified using slide culture technique followed by image analysis. Four strains (SC906, A103, A2017 and A1020) were selected from lab stock. All strains were screened under controlled fermentation conditions such as pH range of 2-3, temperature 30°C and agitation 150 rpm, using 1% (w/w) of substrate (STP sludge), 2% (w/w) co-substrate (wheat flour) with inoculum’s size of 2% (spore mL‾1), using liquid state fermentation process for the maximum production of citric acid. Evaluation of fungal potentiality was done in terms of maximum citric acid production, biosolids production (TSS %) and chemical oxygen demand (COD) removal. Strain A-SS106 produced the highest concentration of citric acid (0.14 g L‾1), TSS (15.18 g L‾1) and COD removal (90.1%) on fourth day of fermentation. Science Publications 2005 Article PeerReviewed application/pdf en http://irep.iium.edu.my/9730/1/Sewage_Treatment_Plant_Sludge.pdf Jamal, Parveen and Alam, Md. Zahangir and Ramlan, M. and Salleh, M. and M. Akib, Munirah (2005) Sewage treatment plant sludge: a source of potential microorganism for citric acid production. American Journal of Applied Sciences, 2 (8). pp. 1236-1239. ISSN 1546-9239 http://thescipub.com/abstract/10.3844/ajassp.2005.1236.1239 10.3844/ajassp.2005.1236.1239
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	QR Microbiology TA164 Bioengineering TA170 Environmental engineering TP248.13 Biotechnology
spellingShingle	QR Microbiology TA164 Bioengineering TA170 Environmental engineering TP248.13 Biotechnology Jamal, Parveen Alam, Md. Zahangir Ramlan, M. Salleh, M. M. Akib, Munirah Sewage treatment plant sludge: a source of potential microorganism for citric acid production
description	This research emphasizes on the utilization of Sewage Treatment Plant (STP) sludge, which is an inexpensive and easily available raw material and a good source for growth of microorganisms because it has enough nutrients and trace elements. This can be considered as an alternative cost effective solution for waste management in addition to production of a value added product citric acid, one of the important chemicals used in various industrial processes. The isolation of filamentous fungi especially Aspergillus was done from STP sludge for better adaptability. Six strains of Aspergillus were isolated from STP sludge and identified using slide culture technique followed by image analysis. Four strains (SC906, A103, A2017 and A1020) were selected from lab stock. All strains were screened under controlled fermentation conditions such as pH range of 2-3, temperature 30°C and agitation 150 rpm, using 1% (w/w) of substrate (STP sludge), 2% (w/w) co-substrate (wheat flour) with inoculum’s size of 2% (spore mL‾1), using liquid state fermentation process for the maximum production of citric acid. Evaluation of fungal potentiality was done in terms of maximum citric acid production, biosolids production (TSS %) and chemical oxygen demand (COD) removal. Strain A-SS106 produced the highest concentration of citric acid (0.14 g L‾1), TSS (15.18 g L‾1) and COD removal (90.1%) on fourth day of fermentation.
format	Article
author	Jamal, Parveen Alam, Md. Zahangir Ramlan, M. Salleh, M. M. Akib, Munirah
author_facet	Jamal, Parveen Alam, Md. Zahangir Ramlan, M. Salleh, M. M. Akib, Munirah
author_sort	Jamal, Parveen
title	Sewage treatment plant sludge: a source of potential microorganism for citric acid production
title_short	Sewage treatment plant sludge: a source of potential microorganism for citric acid production
title_full	Sewage treatment plant sludge: a source of potential microorganism for citric acid production
title_fullStr	Sewage treatment plant sludge: a source of potential microorganism for citric acid production
title_full_unstemmed	Sewage treatment plant sludge: a source of potential microorganism for citric acid production
title_sort	sewage treatment plant sludge: a source of potential microorganism for citric acid production
publisher	Science Publications
publishDate	2005
url	http://irep.iium.edu.my/9730/ http://irep.iium.edu.my/9730/ http://irep.iium.edu.my/9730/ http://irep.iium.edu.my/9730/1/Sewage_Treatment_Plant_Sludge.pdf
first_indexed	2023-09-18T20:19:20Z
last_indexed	2023-09-18T20:19:20Z
_version_	1777408001019215872

Sewage treatment plant sludge: a source of potential microorganism for citric acid production

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