Pollutant Removal Capability Of An Ecological Swale
As development and impermeability increase in an area, it can have significant impact on hydrologic and hydraulic process as well as degradation of water quality on receiving waters. In order to solve the entire problem caused by the conventional drainage system, a new approach has been introd...
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Main Author: | |
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Format: | Monograph |
Language: | English |
Published: |
Universiti Sains Malaysia
2005
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Subjects: | |
Online Access: | http://eprints.usm.my/57414/1/Pollutant%20Removal%20Capability%20Of%20An%20Ecological%20Swale_Aishahturizdah%20Ashgul.pdf http://eprints.usm.my/57414/ |
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Summary: | As development and impermeability increase in an area, it can have significant impact
on hydrologic and hydraulic process as well as degradation of water quality on
receiving waters. In order to solve the entire problem caused by the conventional
drainage system, a new approach has been introduced to manage the storm water. Bio-Ecological Drainage system (BIOECODS) forms an alternative method based on
control at source approach to manage storm water quality at USM Engineering
campus, Nibong Tebal by using ecological swales and ecological pond. However this
study only focuses on the capability of an ecological swale in terms of pollutant
removal. A storm water quality monitoring at an ecological swale is being carried out
by using sampling method. Samples are taken from upstream and downstream along
ecological swale. And then, samples are analyzed in laboratory to identify the level of
pollutant. Parameter analyzed in laboratory includes TSS, TP and Pb. Reduction in the
concentration of pollutants from upstream to downstream show that ecological swale is
very effective to remove pollutant. The performance of swales in term of pollutant
removal diminished with increasing flow rate for TSS, due to the importance of
physical process (sedimentation and filtration) in their removal. TP and Pb removal
also decrease because of the increasing of flow rate. |
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