Fascinating Fact:
Liquid that drains through landfill waste is called leachate, and it must be collected and treated so that toxic chemicals do not contaminate rivers or aquifers.
In GCSE Geography, landfill is studied as a major way of managing solid waste. Pupils examine how sites are chosen, lined, and capped, how leachate and gas are controlled, and why reducing, reusing, and recycling can cut the need for new landfill.
Key Terms
- Landfill: A site where rubbish is buried in the ground, usually in carefully engineered layers.
- Leachate: Polluted liquid that forms when rainwater filters through waste and dissolves chemicals.
- Landfill gas: A mixture of gases, mainly methane and carbon dioxide, produced as organic waste decomposes.
Frequently Asked Questions (Click to see answers)
What is landfill in GCSE Geography?
In GCSE Geography, landfill is a method of waste disposal where rubbish is buried in specially prepared sites. Layers of waste are compacted, covered, and monitored to limit pollution.
Why is landfill a problem for the environment?
Landfill can pollute water if leachate escapes, release methane that contributes to climate change, take up large areas of land, and discourage recycling if it is overused.
How is modern landfill managed safely?
Modern landfill sites use liners, leachate collection pipes, gas capture systems, daily cover of soil or clay, and long term monitoring so that waste breaks down with less impact on people and ecosystems.
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