SME
Environmental Engineering · Problem type
The waste management hierarchy
Use this for “Rank landfilling, recycling, energy recovery and source reduction from most to least preferred.”
Put in order
Order the ways of handling solid waste from most preferred to least.
1
?
2
?
3
?
4
?
5
?
Assumptions
•
The hierarchy ranks ways of handling waste by how much material and energy each saves.
•
Higher steps keep waste from being made; lower steps deal with waste already made.
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Energy recovery: burning waste in a combustor that makes steam or electricity.
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