Leachate treatment using subsurface flow and free water surface constructed wetland systems

The sanitary landfill plays a most important role in the framework of solid waste disposal. Discharge of leachate into the environment constitutes the major environmental concern associated with sanitary landfill and need to prevent. Based on previous study, constructed wetland system has high effic...

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Main Author: Kamarudzaman, Ain Nihla
Format: Thesis
Language:English
Published: 2006
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Online Access:http://eprints.utm.my/id/eprint/4975/1/AinNihlaKamarudzamanMFKA2006.pdf
http://eprints.utm.my/id/eprint/4975/
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spelling my.utm.49752018-02-28T06:50:09Z http://eprints.utm.my/id/eprint/4975/ Leachate treatment using subsurface flow and free water surface constructed wetland systems Kamarudzaman, Ain Nihla TD Environmental technology. Sanitary engineering The sanitary landfill plays a most important role in the framework of solid waste disposal. Discharge of leachate into the environment constitutes the major environmental concern associated with sanitary landfill and need to prevent. Based on previous study, constructed wetland system has high efficiency in treating landfill leachate with low operating and maintenance cost. A combination system utilizing a subsurface flow (SSF) wetland followed by a free water surface (FWS) wetland was studied to treat landfill leachate. In this study, Limnocharis flava and Eichhornia crassipes were used as aquatic plants in wetland system. SSF and FWS constructed wetland systems were arranged in series and operated for around 3 weeks with hydraulic loading rate (HLR) (0.13 m/cycle/day). Two lab scale systems of constructed wetlands were used in the experiments. Performance of SSF-FWS constructed wetland was evaluated with comparison to a Control system (unplanted). The result demonstrated that a combination system utilizing a SSF-FWS constructed wetland systems have shown higher performance in treating leachate landfill. The result demonstrated that the removal efficiency of pollutants in leachate using Limnocharis flava and Eichhornia crassipes in SSF-FWS constructed wetlands were NH4-N (93.1%), NO3-N (96.4%), PO43- (95.9%), Fe (99.5%) and Mn (97.7%). Removal efficiency of SS and turbidity were achieved 87.3% and 99.6%, respectively. Limnocharis flava had higher capacity to accumulate heavy metals (Fe and Mn) in leachate constituents compared than Eichhornia crassipes. From the study, it shows that Fe and Mn uptake is more significant in roots compare to leaves. This study concludes that SSF-FWS constructed wetlands can increase the performance of nutrient and heavy metal removal and also enhance leachate water quality. 2006-11 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/4975/1/AinNihlaKamarudzamanMFKA2006.pdf Kamarudzaman, Ain Nihla (2006) Leachate treatment using subsurface flow and free water surface constructed wetland systems. Masters thesis, Universiti Teknologi Malaysia, Faculty of Civil Engineering.
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/
language English
topic TD Environmental technology. Sanitary engineering
spellingShingle TD Environmental technology. Sanitary engineering
Kamarudzaman, Ain Nihla
Leachate treatment using subsurface flow and free water surface constructed wetland systems
description The sanitary landfill plays a most important role in the framework of solid waste disposal. Discharge of leachate into the environment constitutes the major environmental concern associated with sanitary landfill and need to prevent. Based on previous study, constructed wetland system has high efficiency in treating landfill leachate with low operating and maintenance cost. A combination system utilizing a subsurface flow (SSF) wetland followed by a free water surface (FWS) wetland was studied to treat landfill leachate. In this study, Limnocharis flava and Eichhornia crassipes were used as aquatic plants in wetland system. SSF and FWS constructed wetland systems were arranged in series and operated for around 3 weeks with hydraulic loading rate (HLR) (0.13 m/cycle/day). Two lab scale systems of constructed wetlands were used in the experiments. Performance of SSF-FWS constructed wetland was evaluated with comparison to a Control system (unplanted). The result demonstrated that a combination system utilizing a SSF-FWS constructed wetland systems have shown higher performance in treating leachate landfill. The result demonstrated that the removal efficiency of pollutants in leachate using Limnocharis flava and Eichhornia crassipes in SSF-FWS constructed wetlands were NH4-N (93.1%), NO3-N (96.4%), PO43- (95.9%), Fe (99.5%) and Mn (97.7%). Removal efficiency of SS and turbidity were achieved 87.3% and 99.6%, respectively. Limnocharis flava had higher capacity to accumulate heavy metals (Fe and Mn) in leachate constituents compared than Eichhornia crassipes. From the study, it shows that Fe and Mn uptake is more significant in roots compare to leaves. This study concludes that SSF-FWS constructed wetlands can increase the performance of nutrient and heavy metal removal and also enhance leachate water quality.
format Thesis
author Kamarudzaman, Ain Nihla
author_facet Kamarudzaman, Ain Nihla
author_sort Kamarudzaman, Ain Nihla
title Leachate treatment using subsurface flow and free water surface constructed wetland systems
title_short Leachate treatment using subsurface flow and free water surface constructed wetland systems
title_full Leachate treatment using subsurface flow and free water surface constructed wetland systems
title_fullStr Leachate treatment using subsurface flow and free water surface constructed wetland systems
title_full_unstemmed Leachate treatment using subsurface flow and free water surface constructed wetland systems
title_sort leachate treatment using subsurface flow and free water surface constructed wetland systems
publishDate 2006
url http://eprints.utm.my/id/eprint/4975/1/AinNihlaKamarudzamanMFKA2006.pdf
http://eprints.utm.my/id/eprint/4975/
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score 13.209306