Nutrients removal from landfill leachate using free water surface and subsurface flow in constructed wetland

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Main Author:	Afifi, Akhiar
Other Authors:	Ain Nihla Kamarudzaman
Format:	Learning Object
Language:	English
Published:	Universiti Malaysia Perlis (UniMAP) 2013
Subjects:	Phytoremediation Constructed wetland Wetland plant Landfill leachate Limnocharis flava
Online Access:	http://dspace.unimap.edu.my/xmlui/handle/123456789/23942
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Institution:	Universiti Malaysia Perlis
Language:	English

id	my.unimap-23942
record_format	dspace
spelling	my.unimap-239422013-03-06T09:43:27Z Nutrients removal from landfill leachate using free water surface and subsurface flow in constructed wetland Afifi, Akhiar Ain Nihla Kamarudzaman Phytoremediation Constructed wetland Wetland plant Landfill leachate Limnocharis flava Access is limited to UniMAP community. Leachate is one of the major problems in landfill since it contained high levels of organic and inorganic matters. As it was highly contaminated, leachate could not be discharged directly into the surface water bodies. Therefore, constructed wetlands are highly efficient and low-cost alternative treatment systems for treating leachate. The main purpose of this study was to to determine the nutrients (phosphate, nitrate and ammonia) removal from landfill leachate using combined subsurface and free water surface flow in constructed wetland between planted and control (without plant) system. Other purpose was to determine the nutrients removal in two different hydraulic loading rates (HLR) which were 0.55 m/s and 0.39 m/s. The percentage removal between subsurface (SS) and free water surface (FWS) in both planted and control system and the uptake of nutrients by plants, Limnocharis flava in subsurface (SS) and Eichhornia crassipes in free water surface (FWS) were also investigated. A laboratory-scale constructed wetland was set up for this study. Planted system showed better removal compared to control system. Lower HLR removes phosphate better while higher HLR removes nitrate and ammonia better. Subsurface tank had good removal of nutrients but at some points free water surface had better removal. A combination of both subsurface and free water surface has excellent nutrients removal in constructed wetland. Eichhornia crassipes had higher nutrients uptake than Limnocharis flava but both plants have proven to play an important role in treatment of leachate. 2013-03-06T09:43:27Z 2013-03-06T09:43:27Z 2012-05 Learning Object http://hdl.handle.net/123456789/23942 en Universiti Malaysia Perlis (UniMAP) School of Environmental Engineering
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	Phytoremediation Constructed wetland Wetland plant Landfill leachate Limnocharis flava
spellingShingle	Phytoremediation Constructed wetland Wetland plant Landfill leachate Limnocharis flava Afifi, Akhiar Nutrients removal from landfill leachate using free water surface and subsurface flow in constructed wetland
description	Access is limited to UniMAP community.
author2	Ain Nihla Kamarudzaman
author_facet	Ain Nihla Kamarudzaman Afifi, Akhiar
format	Learning Object
author	Afifi, Akhiar
author_sort	Afifi, Akhiar
title	Nutrients removal from landfill leachate using free water surface and subsurface flow in constructed wetland
title_short	Nutrients removal from landfill leachate using free water surface and subsurface flow in constructed wetland
title_full	Nutrients removal from landfill leachate using free water surface and subsurface flow in constructed wetland
title_fullStr	Nutrients removal from landfill leachate using free water surface and subsurface flow in constructed wetland
title_full_unstemmed	Nutrients removal from landfill leachate using free water surface and subsurface flow in constructed wetland
title_sort	nutrients removal from landfill leachate using free water surface and subsurface flow in constructed wetland
publisher	Universiti Malaysia Perlis (UniMAP)
publishDate	2013
url	http://dspace.unimap.edu.my/xmlui/handle/123456789/23942
_version_	1643794162472976384

Nutrients removal from landfill leachate using free water surface and subsurface flow in constructed wetland

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