Landfill leachate treatment using subsurface flow constructed wetlands enhanced with magnetic field

Leachate is a complex and highly polluted wastewater. Constructed wetlands are potentially good, low-cost and appropriate technological treatment systems for treating leachate. Thus, the purpose of this study was to assess the impact of magnetic field towards the performance of vertical and horizont...

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Main Author:	Rasit, Nazaitulshila
Format:	Thesis
Language:	English
Published:	2006
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/2078/1/NazaitulshilaRasitMFKA2006.pdf
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spelling	my-utm-ep.20782018-06-13T07:05:20Z Landfill leachate treatment using subsurface flow constructed wetlands enhanced with magnetic field 2006-11 Rasit, Nazaitulshila TA Engineering (General). Civil engineering (General) TD Environmental technology. Sanitary engineering Leachate is a complex and highly polluted wastewater. Constructed wetlands are potentially good, low-cost and appropriate technological treatment systems for treating leachate. Thus, the purpose of this study was to assess the impact of magnetic field towards the performance of vertical and horizontal subsurface flow constructed wetland (SSF) vegetated with Limnocharis flava for leachate treatment. The metals uptake by plants also been investigated. The main parameters evaluation are total suspended solid (TSS), turbidity, ammoniacal nitrogen (NH4 -N), nitrate (NO3 -N), phosphorus and metals (ferum and manganese). Experiments were run in two systems, which were vertical SSF and horizontal SSF, conducted in duration of 18 days for each. Each of the system consists of control, vegetated and vegetated with magnet tanks. Results show that the capability of emergent plant in the removal of all parameters did show a performance compared to unplanted control. Presence of the vegetation did show there were a substantial removal shown for NH4 -N>80%, NO3 -N>70% and heavy metals (Fe>96 and Mn>83%). However, the capability of emergent plant has lower removal efficiency in TSS (<48%). Constructed wetland with magnetic field had a greater ability than vegetated treatment in removal of TSS and metals. For those parameters, highest removal was recorded in both systems compared to other treatment which was >86% for TSS, complete removal for Fe and for Mn, removal was >88%. The effect of different flow format used in this study had shown that vertical flow format do provide a good condition for nitrification but no denitrification. On the other hand, horizontal flow format cannot provide nitrification because of their limited oxygen transfer capacity. The treatability of vertical SSF had showed greater removal in NH4 -N (>87%) and Mn (>78%) while horizontal flow had showed greater removal of NO3 -N (>66%). Others parameters did not contribute to substantial differences between vertical and horizontal SSF constructed wetlands. The result for metals uptake by Limnocharis flava shows that the plants leaves and roots are capable to absorb Fe and Mn in leachate 2006-11 Thesis http://eprints.utm.my/id/eprint/2078/ http://eprints.utm.my/id/eprint/2078/1/NazaitulshilaRasitMFKA2006.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General) TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) TA Engineering (General) Civil engineering (General) Rasit, Nazaitulshila Landfill leachate treatment using subsurface flow constructed wetlands enhanced with magnetic field
description	Leachate is a complex and highly polluted wastewater. Constructed wetlands are potentially good, low-cost and appropriate technological treatment systems for treating leachate. Thus, the purpose of this study was to assess the impact of magnetic field towards the performance of vertical and horizontal subsurface flow constructed wetland (SSF) vegetated with Limnocharis flava for leachate treatment. The metals uptake by plants also been investigated. The main parameters evaluation are total suspended solid (TSS), turbidity, ammoniacal nitrogen (NH4 -N), nitrate (NO3 -N), phosphorus and metals (ferum and manganese). Experiments were run in two systems, which were vertical SSF and horizontal SSF, conducted in duration of 18 days for each. Each of the system consists of control, vegetated and vegetated with magnet tanks. Results show that the capability of emergent plant in the removal of all parameters did show a performance compared to unplanted control. Presence of the vegetation did show there were a substantial removal shown for NH4 -N>80%, NO3 -N>70% and heavy metals (Fe>96 and Mn>83%). However, the capability of emergent plant has lower removal efficiency in TSS (<48%). Constructed wetland with magnetic field had a greater ability than vegetated treatment in removal of TSS and metals. For those parameters, highest removal was recorded in both systems compared to other treatment which was >86% for TSS, complete removal for Fe and for Mn, removal was >88%. The effect of different flow format used in this study had shown that vertical flow format do provide a good condition for nitrification but no denitrification. On the other hand, horizontal flow format cannot provide nitrification because of their limited oxygen transfer capacity. The treatability of vertical SSF had showed greater removal in NH4 -N (>87%) and Mn (>78%) while horizontal flow had showed greater removal of NO3 -N (>66%). Others parameters did not contribute to substantial differences between vertical and horizontal SSF constructed wetlands. The result for metals uptake by Limnocharis flava shows that the plants leaves and roots are capable to absorb Fe and Mn in leachate
format	Thesis
qualification_level	Master's degree
author	Rasit, Nazaitulshila
author_facet	Rasit, Nazaitulshila
author_sort	Rasit, Nazaitulshila
title	Landfill leachate treatment using subsurface flow constructed wetlands enhanced with magnetic field
title_short	Landfill leachate treatment using subsurface flow constructed wetlands enhanced with magnetic field
title_full	Landfill leachate treatment using subsurface flow constructed wetlands enhanced with magnetic field
title_fullStr	Landfill leachate treatment using subsurface flow constructed wetlands enhanced with magnetic field
title_full_unstemmed	Landfill leachate treatment using subsurface flow constructed wetlands enhanced with magnetic field
title_sort	landfill leachate treatment using subsurface flow constructed wetlands enhanced with magnetic field
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2006
url	http://eprints.utm.my/id/eprint/2078/1/NazaitulshilaRasitMFKA2006.pdf
_version_	1747814397240147968

Landfill leachate treatment using subsurface flow constructed wetlands enhanced with magnetic field

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