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Kaolinite sludge dewatering using different coagulants from Moringa oleifera seeds

Qabas, Marwan Abdulazeez and Jami, Mohammed Saedi and Alam, Md. Zahangir and Iwata, Masashi (2017) Kaolinite sludge dewatering using different coagulants from Moringa oleifera seeds. In: 30th Symposium of Malaysian Chemical Engineers (SOMChE 2017 ), 6th-7th Dec. 2017, Monash University, Kuala Lumpur. (Unpublished)

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Abstract

In this research, seven sets of coagulants were prepared from Moringa oleifera (MO) seeds and applied on kaolin suspension as synthetic sludge model. The first form is crude MO seeds powder without any treatment, while the second is defatted MO seeds powder. The third form was prepared by mixing the defatted seeds powder with distilled water for the extraction of bioactive compounds. The other coagulant forms were prepared using salts extraction (1 Molar), which are NaNO3, KCl, KNO3, and NaCl. Dewatering efficiency was evaluated through specific resistance to filtration (SRF) and supernatant turbidity measurements. Results showed that the extraction by NaNO3 and NaCl have the highest dewaterability compared to the other coagulant forms. MO seeds extract by NaNO3 was recorded supernatant turbidity of 29.3 NTU and SRF of 1.06x1011 m/kg at 600 mg/L dosage. The same SRF value was obtained with NaCl extraction at the same dosage, while the supernatant turbidity was recorded 31 NTU. Nevertheless, untreated and defatted powder forms have low sludge dewaterability at 600 mg/L and no dewaterability at low dosage. The extraction of bioactive compounds from MO seeds using NaNO3 and NaCl is very efficient, and the final product can be used as natural sludge conditioner.

Item Type: Conference or Workshop Item (Speech/Talk)
Additional Information: 5545/60127
Uncontrolled Keywords: Sludge Dewatering, Moringa oleifera, Coagulant, Specific Filtration Resistance, Turbidity
Subjects: T Technology > TP Chemical technology > TP155 Chemical engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User: Associate Dr. Mohammed Saedi Jami, PhD CEng MIChemE
Date Deposited: 22 Dec 2017 09:58
Last Modified: 22 Dec 2017 09:58
URI: http://irep.iium.edu.my/id/eprint/60217

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