To improve landfill management in Southeast Asia, reduction of landfill leachate volume with low cost and easy operation is required. The present study attempted to utilize constructed wetland (CW) for reduction of landfill leachate by evapotranspiration. The objective of this study is to evaluate the influence of operation and season on evapotranspiration of CW applied to landfill leachate treatment in tropical regions. The pilot-scale CW planted with cattail was constructed in Sainoi landfill site, Thailand. CW could siginificantly reduce the leachate volume by the evapotranspiration in daytime than nighttime. Frequent inflow of horizontal subsurface flow (HSSF) during daytime resulted in active evapotranspiration. Evapotranspiration of CW in HSSF with high frequency of inflow showed the similar that in free water surface (FWS). Throughout the year including both rainy and dry seasons, evapotranspiration of CW were significantly higher than the evaporation volume which is regarded as water reduction by existing landfill leachate treatment, i.e. stabilization pond. CW should be served as the techonology for appropriate management of landfill leachate in Southeast Asia.
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Research Article|
December 01 2015
Effect of feed pattern of landfill leachate on water reduction in constructed wetland in Southeast Asia
Yuka Ogata;
Yuka Ogata
*
aCenter for Material Cycles and Waste Management Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
*Corresponding author. E-mail: [email protected]
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Tomonori Ishigaki;
Tomonori Ishigaki
aCenter for Material Cycles and Waste Management Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
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Yoshitaka Ebie;
Yoshitaka Ebie
aCenter for Material Cycles and Waste Management Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
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Noppharit Sutthasil;
Noppharit Sutthasil
bDepartment of Environmental Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Lat Yao Chatuchak, Bangkok 10900, Thailand
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Chart Chiemchaisri;
Chart Chiemchaisri
bDepartment of Environmental Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Lat Yao Chatuchak, Bangkok 10900, Thailand
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Masato Yamada
Masato Yamada
aCenter for Material Cycles and Waste Management Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
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Water Practice and Technology (2015) 10 (4): 669–673.
Citation
Yuka Ogata, Tomonori Ishigaki, Yoshitaka Ebie, Noppharit Sutthasil, Chart Chiemchaisri, Masato Yamada; Effect of feed pattern of landfill leachate on water reduction in constructed wetland in Southeast Asia. Water Practice and Technology 1 December 2015; 10 (4): 669–673. doi: https://doi.org/10.2166/wpt.2015.079
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