Environment and production for SQA National 5 Chemistry
This page covers the following topics:
1. Polymers and the environment
2. Recycling polymers
Many polymers are non-biodegradable and so their disposal can cause a number of environmental issues. There are three main methods for disposing of polymers: recycling, landfill and burning.
Recycling is one method of disposal for polymers. It has a number of advantages and is often preferred over disposal through landfill or burning. It does, however, also have some disadvantages.
Can a plastic be recycled more than once?
What are the two main steps involved in recycling a polymer?
1. melting the polymer down 2. forming a new product from the melted material
Why is burning polymers bad for the environment?
It releases greenhouse gases (e.g. carbon dioxide).
Give an advantage of recycling over disposing of plastics in landfill.
Recycling saves land, is more environmentally sustainable.
Is the amount of crude oil used greater for recycling or burning?
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