Reducing Use of Resources (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Flashcards
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Methods to reduce use of raw materials
Methods to reduce use of raw materials
Recycling and reusing
Examples of finite natural resources
Examples of finite natural resources
Metals, glass, and ceramics
How glass bottles can be reused
How glass bottles can be reused
Returned to manufacturers, cleaned, refilled, used again
Why aluminium cans are recycled not reused
Why aluminium cans are recycled not reused
Difficult to reuse after single use
First step in recycling process
First step in recycling process
Separation: products dismantled, components separated
Second step in recycling process
Second step in recycling process
Melting down: metal components melted to isolate metal
Third step in recycling process
Third step in recycling process
Recasting: raw metal melted again and recast into new products
Example of recycling scrap steel
Example of recycling scrap steel
Added to blast furnaces in iron production
Recycling disadvantage: transport
Recycling disadvantage: transport
Generates carbon emissions from vehicles
Recycling disadvantage: sorting
Recycling disadvantage: sorting
Labour-intensive
Recycling disadvantage: energy
Recycling disadvantage: energy
Melting materials requires significant energy
Recycling advantage: environmental impact
Recycling advantage: environmental impact
Significantly lowers impact vs extracting new raw materials
Recycling advantage: landfill
Recycling advantage: landfill
Reduces volume of waste sent to landfill
Recycling advantage: resources
Recycling advantage: resources
Conserves resources for longer periods