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Lecture 58

ENV100Y5 Lecture Notes - Lecture 58: Life-Cycle Assessment, Incineration, Compost

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Monika Havelka

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Waste Management Part II
-There are other options for final options for disposal of grab:
Incineration: a lot of people however are against it, and it is banned in Ontario - people
worry about the air pollution of incineration
When you incinerate garbage, you have ash that remains, which contains stuff that may
cause pollution or other problematic hazardous waste
Incinerations can also be used for co-production, whereby you can capture the excess
heat and do waste-to-energy production
We want to move ourselves towards the waste management hierarchy — can we reduce
our generation of waste?
Most municipalities allow you to take bags for composting for free that you can use in
your garden
-The numbers on the symbol on plastic refers to the type of plastic that was used
-Recycling is not economically viable right now, because of the price of oil; it’s so low that it
does not pay to recycle plastic at all
-It is a better option to reduce waste if we can, as it avoid unnecessary costs and saves money
-Companies are more innovative and forward thinking these days however
-Eco-design/sustainable design looks at the product itself and what we can do to make it more
environmentally friendly
-Some municipalities have pay-as-you-go, where people get charged for bags (i.e: throwing out
garbage in Seattle)
find more resources at
find more resources at
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