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...
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Kulliyyah of Engineering, International Islamic University Malaysia
2018
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| Online Access: | 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 |
| _version_ | 1848785367868637184 |
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| 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 |
| building | IIUM Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-14T16:52:01Z |
| format | Article |
| id | iium-59761 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English English |
| last_indexed | 2025-11-14T16:52:01Z |
| publishDate | 2018 |
| publisher | Kulliyyah of Engineering, International Islamic University Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| 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 |
| 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 |
| title | 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_short | Investigation of bioflocculant as dewatering aid in sludge treatment |
| title_sort | investigation of bioflocculant as dewatering aid in sludge treatment |
| topic | TP155 Chemical engineering |
| 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 |