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waste compaction
Waste compaction is the process of compacting waste, reducing it in size. Garbage compactors and waste collection vehicles compress waste so that more of it can be stored in the same space. Waste is compacted again, more thoroughly, at the landfill to conserve valuable airspace and to extend the landfill's life span. A side effect of this is that important items, like evidence in a crime, may be difficult to recover from the garbage. Due to reduced oxygenation, biodegradation of organic waste is also slowed.
==Consumer & post-collection compaction==
Pre-landfill waste compaction is often beneficial, both for people disposing of waste and the company collecting it. This is because waste collection companies frequently charge by volume or require use of standard-volume containers, and compaction allows more waste to fit in the same space. Trash compactors are available for both residential and commercial use. Compacting garbage after is collected allows more waste to fit inside the collection vehicle, meaning fewer trips to a dump or transfer station are required. The collection company also incurs lower landfill fees, if the landfill charges by volume 1.〔http://www.sp-industries.com/documents/WasteGuide%2012-09.pdf〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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