Environmental Engineering Research

  • 제19권3호
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  • Pages.261-268
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  • 2014
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  • 1226-1025(pISSN)
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  • 2005-968X(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
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Comparison of Solid Waste Stabilization and Methane Emission from Anaerobic and Semi-Aerobic Landfills Operated in Tropical Condition

  • Sutthasil, Noppharit (Department of Environmental Engineering, Faculty of Engineering, Kasetsart University) ;
  • Chiemchaisri, Chart (Department of Environmental Engineering, Faculty of Engineering, Kasetsart University) ;
  • Chiemchaisri, Wilai (Department of Environmental Engineering, Faculty of Engineering, Kasetsart University) ;
  • Wangyao, Komsilp (Joint Graduate School of Energy and Environment, King Mongkut's University of Technology Thonburi) ;
  • Towprayoon, Sirintornthep (Joint Graduate School of Energy and Environment, King Mongkut's University of Technology Thonburi) ;
  • Endo, Kazuto (Research Center for Material Cycles and Waste Management, National Institute for Environmental Studies) ;
  • Yamada, Masato (Research Center for Material Cycles and Waste Management, National Institute for Environmental Studies)
  • 투고 : 2014.05.25
  • 심사 : 2014.08.26
  • 발행 : 2014.09.30
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초록

Leachate quality and methane emission from pilot-scale lysimeters operated under semi-aerobic and anaerobic conditions were monitored for 650 days. Two semi-aerobic lysimeters were filled with un-compacted and compacted municipal solid wastes whereas two anaerobic lysimeters containing compacted wastes were operated with leachate storage at 50% and 100% of waste height, respectively. Despite having high moisture in wastes and operating under tropical rainfall events, leachate stabilization in semi-aerobic lysimeters took place much faster resulting in BOD reduction by 90% within 60 days, significantly shorter than 180-210 days observed in anaerobic lysimeters. Nitrogen concentration in leachate from semi-aerobic lysimeter could be reduced by 90%. In term of gas emission, semi-aerobic lysimeter with un-compacted wastes had much lower methane emission rate of $2.8g/m^2/day$ compare to anaerobic lysimeters ($62.6g/m^2/day$) through seasonal fluctuation was observed. Nevertheless, semi-aerobic lysimeter with waste compaction has similar performance to anaerobic lysimeter.

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