2.3 Environmental Issues Flashcards

1
Q

What is a life cycle assessment?

A

It measures the impacts on the environment associated with the life cycle of a product, process, or service.

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2
Q

What are the parts of a life cycle assessment?

A
  • Raw material extraction
  • manufacturing
  • distribution
  • use
  • disposal/recycling
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3
Q

What are the 6 Rs?

A
  • How to minimise waste production at the end of the life cycle stage.
  • Reduce
  • Reuse
  • Recycle
  • Rethink
  • Refuse
  • Repair
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4
Q

What can a designer do to minimise waste and reduce the environmental impact?

A
  • Make products easy to disassemble for recycling.
  • Limit the use of toxic materials.
  • Use biodegradable materials where possible.
  • Arrange collection of materials at the end of life stage.
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5
Q

What is REDUCE?

A

The process of reducing a product or material into waste material either through incineration or decomposition.

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6
Q

What are the benefits of Reduction?

A
  • Reduced amount of space occupied in a landfill.
  • Reduced pollution.
  • Release of energy
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7
Q

What is REUSE?

A
  • The repeated use of a product or material in its original form
  • E.g. second hand cars, glass bottles
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8
Q

What are the benefits of Reuse?

A
  • It saves natural resources and reduces the amount of waste sent to landfills
  • better for the environment than recycling because it doesn’t use resources, time or money to process materials or products into new usable items.
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9
Q

What’s RECYCLING?

A
  • The process of separating, collecting, processing, and finally using a material that would normally be discarded.
  • The materials are reused, or remanufactured into new products.
  • Materials such as glass, paper, card, wood and metal are all sources of recycled materials
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10
Q

What’s RETHINK?

A

Rethinking the way a product is manufactured and redesigned can have a positive impact on the amount and type of materials used.

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11
Q

What is REFUSE?

A

Refusing to use certain types of materials with the design and manufacturing process and using a more sustainable material instead.

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12
Q

What’s REPAIR?

A

When a product is broken, consider whether it can be repaired rather than being discarded.

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13
Q

What is are the benefits of Repair?

A

Repair can help save on cost and minimise the use of renewable materials and energy used in the manufacturing process.

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14
Q

What does Biodegradable mean?

A
  • Are Plastics that are designed to degrade upon disposal by the action of living organisms.
  • Progress has been made in the development of practical processes and products from Polymers
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15
Q

What does Degradable mean?

A

Polymers that are resistant to water and maintain their structure during normal use but readily degrade in a biologically-rich environment.

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16
Q

What is are examples of Degradable polymers?

A
  • Polyactides (PLA)
  • Polyhydroxybutyrate (PHB)
  • Starch-based polymers
17
Q

What is Starch?

A

Starch is an inexpensive, annually renewable material that comes from corn and other crops.

18
Q

What does Compostable mean?

A
  • Polymers that are made from Cellulose, which is an orgnanic material found in cell walls of plants and algae
19
Q

What is cellulose?

A

Cellulose is used to make paper, cardboard and cellophane (a thin clear food-safe plastic)

20
Q

What’s an example of a compostable polymer?

A

Biopol - which is used to make waterproof coatings

21
Q

What does Water Soluble mean?

A
  • Polymers that are made from Lactic Acid, which is found in sour milk products and then processed into Polyactic Acid.
22
Q

What is a benefit of Water Soluble polymers?

A

The Polylactic Acid has low carbon dioxide emissions compared to Petroleum Oil, which can contribute to global warming.

23
Q

What’s an example of a Water Soluble polymer?

A
  • Lactel (bio-milk)
  • Ecofilm (underfloor heating)