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Mechanism of turbidity and hardness removal in hard water sources by using Moringa oleifera

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Main Authors: Fahmi, Muhammad Ridwan, Dr., Nor Wahidatul Azura, Zainon Najib, Pang, Chan Ping, Nasrul, Hamidin, Dr.
Other Authors: drfahmi@unimap.edu.my
Format: Article
Language:English
Published: Asian Network for Scientific 2011
Subjects:
Coagulation
Adsorption
Active agent
Softening
Synthetic water
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/14693
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spelling my.unimap-146932011-10-20T05:15:23Z Mechanism of turbidity and hardness removal in hard water sources by using Moringa oleifera Fahmi, Muhammad Ridwan, Dr. Nor Wahidatul Azura, Zainon Najib Pang, Chan Ping Nasrul, Hamidin, Dr. drfahmi@unimap.edu.my Coagulation Adsorption Active agent Softening Synthetic water Link to publisher's homepage at http://www.ansinet.com/ The objective of this study was to describe the mechanism of simultaneous removal of hardness and background turbidity in hard water for drinking water purpose by using Moringa oleifera (MO) that extracted with 1.0 M sodium chloride solution (MO-NaCl). Raw water containing high concentration of hardness from Timah Tasoh Dam (Perlis, Malaysia) and synthetic water (turbid, hard, turbid and hard) were used in this study. The optimum turbidity removal efficiency of Timah Tasoh raw water, synthetic turbid water and synthetic turbid and hard water were approximately 80% which were attained at MO dosage of 15, 30 and 10 mg L-1, respectively. However, this optimum MO dosage was not applicable for hardness removal. The mechanism for turbidity removal by MO-NaCl was supposed to be adsorption and charge neutralization, with the adsorption isotherm following the Freundlich adsorption model. In addition, the mechanism for hardness removal in hard water seems to be adsorption that conforms to both Freundlich and Langmuir adsorption models. Therefore, for hard water such as Timah Tasoh raw water and synthetic turbid and hard water, the MO-NaCl tends to adsorb hardness to form a netlike structure followed by turbidity removal through sweep coagulation mechanism. Hence, hardness and turbidity can be removed simultaneously by using MO-NaCl. 2011-10-20T05:15:23Z 2011-10-20T05:15:23Z 2011 Article Journal of Applied Sciences, vol. 11 (16), 2011, pages 2947-2953 1812-5654 http://www.scialert.net/qredirect.php?doi=jas.2011.2947.2953&linkid=pdf http://hdl.handle.net/123456789/14693 en Asian Network for Scientific
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Coagulation
Adsorption
Active agent
Softening
Synthetic water
spellingShingle Coagulation
Adsorption
Active agent
Softening
Synthetic water
Fahmi, Muhammad Ridwan, Dr.
Nor Wahidatul Azura, Zainon Najib
Pang, Chan Ping
Nasrul, Hamidin, Dr.
Mechanism of turbidity and hardness removal in hard water sources by using Moringa oleifera
description Link to publisher's homepage at http://www.ansinet.com/
author2 drfahmi@unimap.edu.my
author_facet drfahmi@unimap.edu.my
Fahmi, Muhammad Ridwan, Dr.
Nor Wahidatul Azura, Zainon Najib
Pang, Chan Ping
Nasrul, Hamidin, Dr.
format Article
author Fahmi, Muhammad Ridwan, Dr.
Nor Wahidatul Azura, Zainon Najib
Pang, Chan Ping
Nasrul, Hamidin, Dr.
author_sort Fahmi, Muhammad Ridwan, Dr.
title Mechanism of turbidity and hardness removal in hard water sources by using Moringa oleifera
title_short Mechanism of turbidity and hardness removal in hard water sources by using Moringa oleifera
title_full Mechanism of turbidity and hardness removal in hard water sources by using Moringa oleifera
title_fullStr Mechanism of turbidity and hardness removal in hard water sources by using Moringa oleifera
title_full_unstemmed Mechanism of turbidity and hardness removal in hard water sources by using Moringa oleifera
title_sort mechanism of turbidity and hardness removal in hard water sources by using moringa oleifera
publisher Asian Network for Scientific
publishDate 2011
url http://dspace.unimap.edu.my/xmlui/handle/123456789/14693
_version_ 1643791088005152768
score 13.214268

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