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Effectiveness of salt-extracted freeze-dried Moringa oleifera as a coagulant

The effectiveness of freeze-dried Moringa oleifera (MO) seeds powder in the coagulation of synthetic wastewater was studied. Three modes of extraction were introduced, namely distilled water-extracted freeze-dried M. oleifera (FD-DW MO), salt-extracted freeze-dried M. oleifera (FD-KCl MO), and disti...

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Main Authors: Megat Mohd. Noor, Megat Johari, Mohamed, Ezzuldin Hasan, Mohammad, Thamer Ahmad, Ghazali, Abdul Halim
Format: Article
Published: Bellwether Publishing, Ltd. 2015
Subjects:
T Technology (General)
Online Access:http://eprints.utm.my/id/eprint/58409/
http://dx.doi.org/10.1080/19443994.2014.946719
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spelling my.utm.584092021-11-24T08:45:38Z http://eprints.utm.my/id/eprint/58409/ Effectiveness of salt-extracted freeze-dried Moringa oleifera as a coagulant Megat Mohd. Noor, Megat Johari Mohamed, Ezzuldin Hasan Mohammad, Thamer Ahmad Ghazali, Abdul Halim T Technology (General) The effectiveness of freeze-dried Moringa oleifera (MO) seeds powder in the coagulation of synthetic wastewater was studied. Three modes of extraction were introduced, namely distilled water-extracted freeze-dried M. oleifera (FD-DW MO), salt-extracted freeze-dried M. oleifera (FD-KCl MO), and distilled water-extracted freeze-dried M. oleifera with salt addition (FD-DW MO + KCl). Jar test was used to evaluate the effectiveness of the extracted freeze-dried powder, in the coagulation of a synthetic municipal wastewater. The results show that FD-DW MO at an optimal dosage of 132 mg/l, increases the turbidity removal efficiency to nearly 93% as compared to distilled water-extracted MO which gave 76% removal at an optimal dosage of 300 mg/l. However, the comparison of FD-KCl MO with non-FD-KCl MO show that the freeze-drying neither improves the efficiency of salt-extracted M. oleifera nor the optimal dosage. On the other hand, adding KCl to the FD-DW MO in treating high turbidity synthetic wastewater at 200 ± 5 NTU improved the optimal dosage from 40 mg/l (without adding KCl) to 10 mg/l corresponding to 91% removal efficiency. As a conclusion, the freeze-drying process did not improve the coagulation efficiency with salt-extracted MO using KCL. But using the salt (KCL) solution for dilution of FD-DW MO causes the optimal dosage to decrease from 40 mg/l (using distilled water for dilution) to 10 mg/l. This is associated with a slight decrease in the efficiency from 92.73 to 91.32%. Bellwether Publishing, Ltd. 2015 Article PeerReviewed Megat Mohd. Noor, Megat Johari and Mohamed, Ezzuldin Hasan and Mohammad, Thamer Ahmad and Ghazali, Abdul Halim (2015) Effectiveness of salt-extracted freeze-dried Moringa oleifera as a coagulant. Desalition And Water Treatment, 55 (13). pp. 3621-3627. ISSN 1944-3994 http://dx.doi.org/10.1080/19443994.2014.946719 DOI: 10.1080/19443994.2014.946719
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic T Technology (General)
spellingShingle T Technology (General)
Megat Mohd. Noor, Megat Johari
Mohamed, Ezzuldin Hasan
Mohammad, Thamer Ahmad
Ghazali, Abdul Halim
Effectiveness of salt-extracted freeze-dried Moringa oleifera as a coagulant
description The effectiveness of freeze-dried Moringa oleifera (MO) seeds powder in the coagulation of synthetic wastewater was studied. Three modes of extraction were introduced, namely distilled water-extracted freeze-dried M. oleifera (FD-DW MO), salt-extracted freeze-dried M. oleifera (FD-KCl MO), and distilled water-extracted freeze-dried M. oleifera with salt addition (FD-DW MO + KCl). Jar test was used to evaluate the effectiveness of the extracted freeze-dried powder, in the coagulation of a synthetic municipal wastewater. The results show that FD-DW MO at an optimal dosage of 132 mg/l, increases the turbidity removal efficiency to nearly 93% as compared to distilled water-extracted MO which gave 76% removal at an optimal dosage of 300 mg/l. However, the comparison of FD-KCl MO with non-FD-KCl MO show that the freeze-drying neither improves the efficiency of salt-extracted M. oleifera nor the optimal dosage. On the other hand, adding KCl to the FD-DW MO in treating high turbidity synthetic wastewater at 200 ± 5 NTU improved the optimal dosage from 40 mg/l (without adding KCl) to 10 mg/l corresponding to 91% removal efficiency. As a conclusion, the freeze-drying process did not improve the coagulation efficiency with salt-extracted MO using KCL. But using the salt (KCL) solution for dilution of FD-DW MO causes the optimal dosage to decrease from 40 mg/l (using distilled water for dilution) to 10 mg/l. This is associated with a slight decrease in the efficiency from 92.73 to 91.32%.
format Article
author Megat Mohd. Noor, Megat Johari
Mohamed, Ezzuldin Hasan
Mohammad, Thamer Ahmad
Ghazali, Abdul Halim
author_facet Megat Mohd. Noor, Megat Johari
Mohamed, Ezzuldin Hasan
Mohammad, Thamer Ahmad
Ghazali, Abdul Halim
author_sort Megat Mohd. Noor, Megat Johari
title Effectiveness of salt-extracted freeze-dried Moringa oleifera as a coagulant
title_short Effectiveness of salt-extracted freeze-dried Moringa oleifera as a coagulant
title_full Effectiveness of salt-extracted freeze-dried Moringa oleifera as a coagulant
title_fullStr Effectiveness of salt-extracted freeze-dried Moringa oleifera as a coagulant
title_full_unstemmed Effectiveness of salt-extracted freeze-dried Moringa oleifera as a coagulant
title_sort effectiveness of salt-extracted freeze-dried moringa oleifera as a coagulant
publisher Bellwether Publishing, Ltd.
publishDate 2015
url http://eprints.utm.my/id/eprint/58409/
http://dx.doi.org/10.1080/19443994.2014.946719
_version_ 1718926028256051200
score 13.211869

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