Landfill
A landfill is a place where waste is kept. Waste is usually buried in landfills, but it may first be sorted to remove any recyclable materials.
Landfills have a bad smell and look bad, therefore are usually located far away from where people live.
Once the waste is crushed into very small pieces, it is buried, but without oxygen, a dangerous gas called methane is created. This process is called anaerobic digestion. In some countries, the methane from landfills is used to generate energy.
Large landfills in the United States
Roosevelt Regional Landfill, Roosevelt, Washington.[1]
Denver Arapahoe Disposal Site, Aurora, Colorado.[2]
Columbia Ridge Landfill, Arlington, Oregon.[3]
Pine Tree Acres, Lenox, Michigan.[4]
Other large landfills
Landfill Media
One of several landfills used by Dryden, Ontario, Canada
Garbage dumped in the middle of a road in Karachi, Pakistan
Landfill operation in Hawaii. The area being filled is a single, well-defined "cell" and that a protective landfill liner is in place (exposed on the left) to prevent contamination by leachates migrating downward through the underlying geological formation.
A gas flare produced by a landfill in Lake County, Ohio
South East New Territories Landfill, Hong Kong
References
- ↑ "Republic Services Roosevelt Regional Landfill". Republic Services. Retrieved 9 February 2014.[dead link]
- ↑ "Denver Arapahoe Disposal Site (DADS) Landfill". Waste Management. Archived from the original on 26 May 2014. Retrieved 9 February 2014.
- ↑ "Columbia Ridge Recycling and Landfill". Waste Management. Retrieved 9 February 2014.
- ↑ "Pine Tree Acres Landfill". Waste Management. Retrieved 8 February 2014.