Optimization of liquid state bioconversion process for microbial treatment of domestic wastewater sludge

The evaluation of cheap carbon sources (co-substrate) and process conditions for microbial treatment of domestic wastewater sludge (DWS) was investigated using a liquid state bioconversion (LSB) laboratory scale process. Six cheap carbon sources were used: wheat flour (WF), rice flour (RF), corn f...

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Main Authors:	Alam, Md. Zahangir, Fakhru’l-Razi, Ahmadun, Molla , Abul Hossain
Format:	Article
Language:	English
Published:	NRC Research 2003
Subjects:	TP Chemical technology TP248.13 Biotechnology
Online Access:	http://irep.iium.edu.my/5020/ http://irep.iium.edu.my/5020/ http://irep.iium.edu.my/5020/ http://irep.iium.edu.my/5020/1/Optimization-canada.pdf

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recordtype	eprints
spelling	iium-50202013-07-17T03:26:07Z http://irep.iium.edu.my/5020/ Optimization of liquid state bioconversion process for microbial treatment of domestic wastewater sludge Alam, Md. Zahangir Fakhru’l-Razi, Ahmadun Molla , Abul Hossain TP Chemical technology TP248.13 Biotechnology The evaluation of cheap carbon sources (co-substrate) and process conditions for microbial treatment of domestic wastewater sludge (DWS) was investigated using a liquid state bioconversion (LSB) laboratory scale process. Six cheap carbon sources were used: wheat flour (WF), rice flour (RF), corn flour (CF), sago starch (SS), cassava starch (CS), and commercial sugar (S). Process conditions such as co-substrate(s) concentration, temperature, initial pH, and inoculum size were optimized in terms of dry filter cake (DFC) production, removal of total suspended solids (TSS),turbidity (optical density against distilled water, 660 nm), and chemical oxygen demand (COD) in supernatant. The results obtained indicated that sludge containing wheat flour as a carbon source was a better co-substrate for microbial growth,with significant utilization for minimizing the dissolved and suspended materials in sludge. The optimized parameters for fungal treatment of DWS obtained were 1.5–2% (w/w) of WF concentration, temperature of 33–35◦C, initial pH of 4.5–5.5, and inoculum size of 2–3% v/w. Effective results for optimum values were recoded at 4 d of microbial treatment. NRC Research 2003 Article PeerReviewed application/pdf en http://irep.iium.edu.my/5020/1/Optimization-canada.pdf Alam, Md. Zahangir and Fakhru’l-Razi, Ahmadun and Molla , Abul Hossain (2003) Optimization of liquid state bioconversion process for microbial treatment of domestic wastewater sludge. Journal of Environmental Engineering and Science, 2 (4). pp. 299-306. ISSN 1496-2551 http://www.nrcresearchpress.com/doi/abs/10.1139/s03-024#.UeYOfNJHIrU 10.1139/s03-024
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TP Chemical technology TP248.13 Biotechnology
spellingShingle	TP Chemical technology TP248.13 Biotechnology Alam, Md. Zahangir Fakhru’l-Razi, Ahmadun Molla , Abul Hossain Optimization of liquid state bioconversion process for microbial treatment of domestic wastewater sludge
description	The evaluation of cheap carbon sources (co-substrate) and process conditions for microbial treatment of domestic wastewater sludge (DWS) was investigated using a liquid state bioconversion (LSB) laboratory scale process. Six cheap carbon sources were used: wheat flour (WF), rice flour (RF), corn flour (CF), sago starch (SS), cassava starch (CS), and commercial sugar (S). Process conditions such as co-substrate(s) concentration, temperature, initial pH, and inoculum size were optimized in terms of dry filter cake (DFC) production, removal of total suspended solids (TSS),turbidity (optical density against distilled water, 660 nm), and chemical oxygen demand (COD) in supernatant. The results obtained indicated that sludge containing wheat flour as a carbon source was a better co-substrate for microbial growth,with significant utilization for minimizing the dissolved and suspended materials in sludge. The optimized parameters for fungal treatment of DWS obtained were 1.5–2% (w/w) of WF concentration, temperature of 33–35◦C, initial pH of 4.5–5.5, and inoculum size of 2–3% v/w. Effective results for optimum values were recoded at 4 d of microbial treatment.
format	Article
author	Alam, Md. Zahangir Fakhru’l-Razi, Ahmadun Molla , Abul Hossain
author_facet	Alam, Md. Zahangir Fakhru’l-Razi, Ahmadun Molla , Abul Hossain
author_sort	Alam, Md. Zahangir
title	Optimization of liquid state bioconversion process for microbial treatment of domestic wastewater sludge
title_short	Optimization of liquid state bioconversion process for microbial treatment of domestic wastewater sludge
title_full	Optimization of liquid state bioconversion process for microbial treatment of domestic wastewater sludge
title_fullStr	Optimization of liquid state bioconversion process for microbial treatment of domestic wastewater sludge
title_full_unstemmed	Optimization of liquid state bioconversion process for microbial treatment of domestic wastewater sludge
title_sort	optimization of liquid state bioconversion process for microbial treatment of domestic wastewater sludge
publisher	NRC Research
publishDate	2003
url	http://irep.iium.edu.my/5020/ http://irep.iium.edu.my/5020/ http://irep.iium.edu.my/5020/ http://irep.iium.edu.my/5020/1/Optimization-canada.pdf
first_indexed	2023-09-18T20:13:28Z
last_indexed	2023-09-18T20:13:28Z
_version_	1777407632521297920

Optimization of liquid state bioconversion process for microbial treatment of domestic wastewater sludge

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