Enhanced settleability and dewaterability of fungal treated domestic wastewater sludge by liquid state bioconversion process

A study was conducted to evaluate the settleability and dewaterability of fungal treated and untreated sludge using liquid state bioconversion process. The fungal mixed culture of Aspergillus niger and Penicillium corylophilum was used for fungal pretreatment of wastewater sludge. The fungal strain...

Full description

Bibliographic Details
Main Authors:	Alam, Md. Zahangir, Fakhru’l-Razi, Ahmadun
Format:	Article
Language:	English
Published:	Elsevier Science 2003
Subjects:	TP Chemical technology TP248.13 Biotechnology
Online Access:	http://irep.iium.edu.my/5021/ http://irep.iium.edu.my/5021/ http://irep.iium.edu.my/5021/ http://irep.iium.edu.my/5021/1/Water_Research-settalibity.pdf

id	iium-5021
recordtype	eprints
spelling	iium-50212013-07-17T02:56:17Z http://irep.iium.edu.my/5021/ Enhanced settleability and dewaterability of fungal treated domestic wastewater sludge by liquid state bioconversion process Alam, Md. Zahangir Fakhru’l-Razi, Ahmadun TP Chemical technology TP248.13 Biotechnology A study was conducted to evaluate the settleability and dewaterability of fungal treated and untreated sludge using liquid state bioconversion process. The fungal mixed culture of Aspergillus niger and Penicillium corylophilum was used for fungal pretreatment of wastewater sludge. The fungal strains immobilized/entrapped on sludge particles with the formation of pellets and enhanced the separation process. The results presented in this study showed that the sludge particles (pellets) size of 2–5mm of diameter were formed with the microbial treatment of sludge after 2 days of fermentation that contained maximum 33.7% of total particles with 3–3.5mm of diameter. The settling rate (measured as total suspended solids (TSS) concentration, 130 mg/l) was faster in treated sludge than untreated sludge (TSS concentration, 440 mg/l) after 1 min of settling time. In 1 min of settling operation, 86.45% of TSS was settled in treated sludge while 4.35% of TSS settled in raw sludge. Lower turbidity was observed in treated sludge as compared to untreated sludge. The results to specific resistance to filtration (SRF) revealed that the fungal inoculumhad significant potentiality to reduce SRF by 99.8% and 98.7% for 1% w/w and 4% w/w of TSS sludge, respectively. The optimum fermentation period recorded was 3 days for 1% w/w sludge and 6 days for 4% w/w sludge, respectively, for dewaterability test. Elsevier Science 2003 Article PeerReviewed application/pdf en http://irep.iium.edu.my/5021/1/Water_Research-settalibity.pdf Alam, Md. Zahangir and Fakhru’l-Razi, Ahmadun (2003) Enhanced settleability and dewaterability of fungal treated domestic wastewater sludge by liquid state bioconversion process. Water Research, 37 (5). pp. 1118-1124. ISSN 0043-1354 http://www.sciencedirect.com/science/article/pii/S0043135402004529 http://dx.doi.org/10.1016/S0043-1354(02)00452-9
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 Enhanced settleability and dewaterability of fungal treated domestic wastewater sludge by liquid state bioconversion process
description	A study was conducted to evaluate the settleability and dewaterability of fungal treated and untreated sludge using liquid state bioconversion process. The fungal mixed culture of Aspergillus niger and Penicillium corylophilum was used for fungal pretreatment of wastewater sludge. The fungal strains immobilized/entrapped on sludge particles with the formation of pellets and enhanced the separation process. The results presented in this study showed that the sludge particles (pellets) size of 2–5mm of diameter were formed with the microbial treatment of sludge after 2 days of fermentation that contained maximum 33.7% of total particles with 3–3.5mm of diameter. The settling rate (measured as total suspended solids (TSS) concentration, 130 mg/l) was faster in treated sludge than untreated sludge (TSS concentration, 440 mg/l) after 1 min of settling time. In 1 min of settling operation, 86.45% of TSS was settled in treated sludge while 4.35% of TSS settled in raw sludge. Lower turbidity was observed in treated sludge as compared to untreated sludge. The results to specific resistance to filtration (SRF) revealed that the fungal inoculumhad significant potentiality to reduce SRF by 99.8% and 98.7% for 1% w/w and 4% w/w of TSS sludge, respectively. The optimum fermentation period recorded was 3 days for 1% w/w sludge and 6 days for 4% w/w sludge, respectively, for dewaterability test.
format	Article
author	Alam, Md. Zahangir Fakhru’l-Razi, Ahmadun
author_facet	Alam, Md. Zahangir Fakhru’l-Razi, Ahmadun
author_sort	Alam, Md. Zahangir
title	Enhanced settleability and dewaterability of fungal treated domestic wastewater sludge by liquid state bioconversion process
title_short	Enhanced settleability and dewaterability of fungal treated domestic wastewater sludge by liquid state bioconversion process
title_full	Enhanced settleability and dewaterability of fungal treated domestic wastewater sludge by liquid state bioconversion process
title_fullStr	Enhanced settleability and dewaterability of fungal treated domestic wastewater sludge by liquid state bioconversion process
title_full_unstemmed	Enhanced settleability and dewaterability of fungal treated domestic wastewater sludge by liquid state bioconversion process
title_sort	enhanced settleability and dewaterability of fungal treated domestic wastewater sludge by liquid state bioconversion process
publisher	Elsevier Science
publishDate	2003
url	http://irep.iium.edu.my/5021/ http://irep.iium.edu.my/5021/ http://irep.iium.edu.my/5021/ http://irep.iium.edu.my/5021/1/Water_Research-settalibity.pdf
first_indexed	2023-09-18T20:13:29Z
last_indexed	2023-09-18T20:13:29Z
_version_	1777407632664952832

Enhanced settleability and dewaterability of fungal treated domestic wastewater sludge by liquid state bioconversion process

Similar Items