📚 Topic Summary
Landfill gas (LFG) management is the process of controlling the gases produced from the decomposition of organic waste in landfills. These gases, primarily methane ($CH_4$) and carbon dioxide ($CO_2$), are potent greenhouse gases and can pose safety risks. Effective LFG management involves collecting, processing, and utilizing or destroying these gases. Best practices include installing gas collection systems, monitoring gas levels, and utilizing the gas for energy production, which helps mitigate climate change and reduce environmental impact.
🧠 Part A: Vocabulary
Match the terms with their definitions:
- Methane
- Leachate
- Gas Collection System
- Aerobic Decomposition
- Anaerobic Decomposition
- The breakdown of organic matter in the absence of oxygen.
- A potent greenhouse gas produced in landfills.
- Liquid that has percolated through solid waste and contains dissolved and suspended materials.
- A network of pipes used to capture gases produced in a landfill.
- The breakdown of organic matter in the presence of oxygen.
Answers: 1-2, 2-3, 3-4, 4-5, 5-1
📝 Part B: Fill in the Blanks
Complete the paragraph with the correct terms from the list: Methane, Greenhouse gas, Combustion, Landfill gas, Energy.
_________ is generated from the decomposition of organic waste in landfills. The primary component of this gas is _________, which is a potent _________. One management strategy involves capturing and using the gas for _________ production. Another approach is _________, which converts the gas into less harmful substances.
Answers: Landfill gas, Methane, Greenhouse gas, Energy, Combustion
🌍 Part C: Critical Thinking
Describe the environmental and economic benefits of implementing a landfill gas-to-energy project.