Investigation of bioflocculant as dewatering aid in sludge treatment

Sludge treatment is one of the most important and expensive steps in water and wastewater treatment plants. Chemical conditioners such as polyaluminium chloride, aluminium sulfate, Fenton’s reagent, gypsum, and polyacrylamide can produce by-products, which cause health and environmental problems. Mo...

Full description

Bibliographic Details
Main Authors:	Jami, Mohammed Saedi, Mel, Maizirwan, Mohd Ariff, Aysha Ralliya, Abdulazeez, Qabas Marwan
Format:	Article
Language:	English English English
Published:	Kulliyyah of Engineering, International Islamic University Malaysia 2018
Subjects:	TP155 Chemical engineering
Online Access:	http://irep.iium.edu.my/59761/ http://irep.iium.edu.my/59761/ http://irep.iium.edu.my/59761/ http://irep.iium.edu.my/59761/1/59761_Investigation%20of%20bioflocculant%20as%20dewatering.pdf http://irep.iium.edu.my/59761/2/59761_Investigation%20of%20bioflocculant%20as%20dewatering_SCOPUS.pdf http://irep.iium.edu.my/59761/3/59761_Investigation%20of%20bioflocculant%20as%20dewatering_WOS.pdf

id	iium-59761
recordtype	eprints
spelling	iium-597612018-06-27T02:57:59Z http://irep.iium.edu.my/59761/ Investigation of bioflocculant as dewatering aid in sludge treatment Jami, Mohammed Saedi Mel, Maizirwan Mohd Ariff, Aysha Ralliya Abdulazeez, Qabas Marwan TP155 Chemical engineering Sludge treatment is one of the most important and expensive steps in water and wastewater treatment plants. Chemical conditioners such as polyaluminium chloride, aluminium sulfate, Fenton’s reagent, gypsum, and polyacrylamide can produce by-products, which cause health and environmental problems. Moringa oleifera (MO) seeds can be used as natural alternative to chemical conditioners. The bioactive materials have to be extracted from MO seeds for good performance. Treatment methods of MO seeds investigated in this study were crude MO seeds, extraction by NaCl (1 M), and defatted MO seeds using hexane solvent. Synthetic sludge samples were prepared using kaolin suspension (5% w/v). The best extraction method was determined based on settling velocity (Vs) and sludge volume index (SVI) as indicators. Results showed that extraction by NaCl gave the best results of 0.41 cm/min of settling velocity and SVI of 63.39 mL/g. SVI value greater than 150 mL/g indicates poor settling qualities whereas the control sludge of the current study was 100 mL/g. The selected extraction method was optimized with respect to three process conditions: MO seeds concentration, mixing speed and contact time. The experiments were designed using 2 Level Factorial Design by Design-Expert software. The optimum process conditions were seed concentration of 3250 mg/L, mixing speed of 100 rpm. MO seeds can be considered a natural coagulant that can be used as main sludge conditioner. Kulliyyah of Engineering, International Islamic University Malaysia 2018 Article PeerReviewed application/pdf en http://irep.iium.edu.my/59761/1/59761_Investigation%20of%20bioflocculant%20as%20dewatering.pdf application/pdf en http://irep.iium.edu.my/59761/2/59761_Investigation%20of%20bioflocculant%20as%20dewatering_SCOPUS.pdf application/pdf en http://irep.iium.edu.my/59761/3/59761_Investigation%20of%20bioflocculant%20as%20dewatering_WOS.pdf Jami, Mohammed Saedi and Mel, Maizirwan and Mohd Ariff, Aysha Ralliya and Abdulazeez, Qabas Marwan (2018) Investigation of bioflocculant as dewatering aid in sludge treatment. IIUM Engineering Journal, 19 (1). pp. 15-23. ISSN 1511-788X E-ISSN 2289-7860 http://journals.iium.edu.my/ejournal/index.php/iiumej/article/view/735 10.31436/iiumej.v19i1.735
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	TP155 Chemical engineering
spellingShingle	TP155 Chemical engineering Jami, Mohammed Saedi Mel, Maizirwan Mohd Ariff, Aysha Ralliya Abdulazeez, Qabas Marwan Investigation of bioflocculant as dewatering aid in sludge treatment
description	Sludge treatment is one of the most important and expensive steps in water and wastewater treatment plants. Chemical conditioners such as polyaluminium chloride, aluminium sulfate, Fenton’s reagent, gypsum, and polyacrylamide can produce by-products, which cause health and environmental problems. Moringa oleifera (MO) seeds can be used as natural alternative to chemical conditioners. The bioactive materials have to be extracted from MO seeds for good performance. Treatment methods of MO seeds investigated in this study were crude MO seeds, extraction by NaCl (1 M), and defatted MO seeds using hexane solvent. Synthetic sludge samples were prepared using kaolin suspension (5% w/v). The best extraction method was determined based on settling velocity (Vs) and sludge volume index (SVI) as indicators. Results showed that extraction by NaCl gave the best results of 0.41 cm/min of settling velocity and SVI of 63.39 mL/g. SVI value greater than 150 mL/g indicates poor settling qualities whereas the control sludge of the current study was 100 mL/g. The selected extraction method was optimized with respect to three process conditions: MO seeds concentration, mixing speed and contact time. The experiments were designed using 2 Level Factorial Design by Design-Expert software. The optimum process conditions were seed concentration of 3250 mg/L, mixing speed of 100 rpm. MO seeds can be considered a natural coagulant that can be used as main sludge conditioner.
format	Article
author	Jami, Mohammed Saedi Mel, Maizirwan Mohd Ariff, Aysha Ralliya Abdulazeez, Qabas Marwan
author_facet	Jami, Mohammed Saedi Mel, Maizirwan Mohd Ariff, Aysha Ralliya Abdulazeez, Qabas Marwan
author_sort	Jami, Mohammed Saedi
title	Investigation of bioflocculant as dewatering aid in sludge treatment
title_short	Investigation of bioflocculant as dewatering aid in sludge treatment
title_full	Investigation of bioflocculant as dewatering aid in sludge treatment
title_fullStr	Investigation of bioflocculant as dewatering aid in sludge treatment
title_full_unstemmed	Investigation of bioflocculant as dewatering aid in sludge treatment
title_sort	investigation of bioflocculant as dewatering aid in sludge treatment
publisher	Kulliyyah of Engineering, International Islamic University Malaysia
publishDate	2018
url	http://irep.iium.edu.my/59761/ http://irep.iium.edu.my/59761/ http://irep.iium.edu.my/59761/ http://irep.iium.edu.my/59761/1/59761_Investigation%20of%20bioflocculant%20as%20dewatering.pdf http://irep.iium.edu.my/59761/2/59761_Investigation%20of%20bioflocculant%20as%20dewatering_SCOPUS.pdf http://irep.iium.edu.my/59761/3/59761_Investigation%20of%20bioflocculant%20as%20dewatering_WOS.pdf
first_indexed	2023-09-18T21:24:41Z
last_indexed	2023-09-18T21:24:41Z
_version_	1777412112372465664

Investigation of bioflocculant as dewatering aid in sludge treatment

Similar Items