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Landfills Geography 12 Kala Renard. The use of a Landfill Also known as a dump or tip Disposal of organized waste material Temporary storage Consolidation.

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Presentation on theme: "Landfills Geography 12 Kala Renard. The use of a Landfill Also known as a dump or tip Disposal of organized waste material Temporary storage Consolidation."— Presentation transcript:

1 Landfills Geography 12 Kala Renard

2 The use of a Landfill Also known as a dump or tip Disposal of organized waste material Temporary storage Consolidation and transfer Processing waste material (sorting, treatment, recycling)

3 Parts of a Landfill Bottom liner system - separates trash and subsequent leachate from groundwater Cells (old and new) - where the trash is stored within the landfill Storm water drainage system - collects rain water that falls on the landfill Leachate collection system - collects water that has percolated through the landfill itself and contains contaminating substances (leachate) Methane collection system - collects methane gas that is formed during the breakdown of trash Covering or cap - seals off the top of the landfill

4 A Vancouver landfill Located in Delta, British Columbia Owned and operated by Vancouver City Serves approx. 940,000 residents 475,000 tones of municipal solid is deposited each year

5 Positive Landfill Impacts Confined to a small area Compacted to reduce the volume Covered (usually daily) with layers of soil

6 Negative Landfill Impacts Contamination of groundwater and/or aquifers Offgassing of methane generated by decaying organic wastes Harbouring of disease vectors Environmental noise

7 Location Requirements Easy access to transport by road Transfer stations if railroad is preferred Land value Cost of meeting government requirements Location of community

8 Government Action/Solution Annual clean-up programs Alternating disposal and recycling locations Asbestos ( quantities exceeding 1% of weight) policies Prohibited wastes such as explosive substances

9 My point of view/Solutions Landfills appear to be the only solution at the moment of depositing wasted materials. Reduce, Reuse, Recycle Host Green parties in your community Circle petitions

10 Interesting Facts Each year more than 3,600 tonnes of recyclable material is collected at the Vancouver Landfill residential drop-off Recycling one aluminum can save enough energy to run a television for three hours Every ton of recycled paper saves 17 trees, 7000 gallons of water, and 4,100 kilowatts of electricity When a landfill closes, the site has to be monitored and maintained up to 30 years


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