Download presentation
Presentation is loading. Please wait.
Published byElijah Paul Modified over 9 years ago
1
EnvironmentEnvironnementCanada Nusa Dua, Bali, Indonesia September 5 – 7, 2005 - 1 - Alain David, P.Eng. National Office of Pollution Prevention Environment Canada Workshop on Landfill Gas Development and the Clean Development Mechanism (CDM): An Introduction to Landfill Gas Development
2
EnvironmentEnvironnementCanada Nusa Dua, Bali, Indonesia September 5 – 7, 2005 - 2 - Outline Part 1: Introduction Part 2: LFG Generation Part 3: LFG Management Part 4: LFG Utilization Part 5: Kyoto Commitment Part 6: LFG in Canada Part 7: Conclusions
3
EnvironmentEnvironnementCanada Nusa Dua, Bali, Indonesia September 5 – 7, 2005 - 3 - Part 1: Introduction
4
EnvironmentEnvironnementCanada Nusa Dua, Bali, Indonesia September 5 – 7, 2005 - 4 - Introduction COMPOUNDCONCENTRATION Methane (CH 4 ) 30 – 60% (volume) Carbon Dioxide (CO 2 ) 20 – 50 % (volume) Oxygen (O 2 ) <2% (volume) Nitrogen (N 2 ) <10% (volume) Moisture (H 2 O) Saturated Trace Compounds e.g. Hydrogen Sulphide, Mercaptans, Vinyl Chloride, Hexane, Toluene, etc. <4000 ppm Landfill Gas (LFG): produced by the anaerobic decomposition of degradable organic wastes in a landfill
5
EnvironmentEnvironnementCanada Nusa Dua, Bali, Indonesia September 5 – 7, 2005 - 5 - Introduction Methane: Second most important greenhouse gas (GHG) after CO 2 Global Warming Potential of 21 (1 tonne CH 4 = 21 tonnes CO 2 ) Makes up 16% of global GHG emissions from human activities Calorific value = 33.8 MJ/m 3 (909 BTU/ft 3 )
6
EnvironmentEnvironnementCanada Nusa Dua, Bali, Indonesia September 5 – 7, 2005 - 6 - POTENTIAL LFG BENEFITS Direct use as fuel Electrical power generation Pipeline gas supplement Displacement of fossil fuel Synthesizing of products such as methanol Introduction POTENTIAL LFG IMPACTS Nuisance odours Greenhouse gas emissions Health issues and toxic effects Explosions Vegetation stress
7
EnvironmentEnvironnementCanada Nusa Dua, Bali, Indonesia September 5 – 7, 2005 - 7 - Introduction Potential LFG Impacts
8
EnvironmentEnvironnementCanada Nusa Dua, Bali, Indonesia September 5 – 7, 2005 - 8 - Introduction Primary reasons for implementing LFG controls: 1) Mitigate health hazards 2) Mitigate environmental impacts 3) Address nuisance odours 4) Generate revenue by utilizing the gas 5) Reduce GHG emissions
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.