Podcast
Questions and Answers
Flashcards
Freecycling
Freecycling
Giving away used items for free.
Recyclable Material
Recyclable Material
A material that can be recycled repeatedly without losing quality.
Recycling
Recycling
The process of converting waste materials into new products.
Upcycling
Upcycling
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Reuse
Reuse
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Recycling
Recycling
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Open-handed Reuse
Open-handed Reuse
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Total Materials Cycle
Total Materials Cycle
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Adaptive Reuse
Adaptive Reuse
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Reduce
Reduce
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Biodegradable Materials
Biodegradable Materials
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Recovery
Recovery
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Waste Management
Waste Management
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Materials Science
Materials Science
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Downcycling
Downcycling
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Polypropylene
Polypropylene
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High-Density Polyethylene
High-Density Polyethylene
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Polystyrene
Polystyrene
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Polyethylene Terephthalate (PET)
Polyethylene Terephthalate (PET)
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Material Recovery
Material Recovery
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Product Life Cycle
Product Life Cycle
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Waste Recycling
Waste Recycling
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Waste Disposal
Waste Disposal
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Preservation Reuse
Preservation Reuse
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Reuse
Reuse
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Creative Reuse
Creative Reuse
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Restoration Reuse
Restoration Reuse
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Adaptation Reuse
Adaptation Reuse
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Upcycling
Upcycling
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Functional Reuse
Functional Reuse
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Study Notes
Part I - Selection/Re-use & Recycling of Materials
- Freecycling: Recycling waste products by giving them to others for free.
- Non-biodegradable, reusable material: Materials like glass can be recycled repeatedly without losing quality.
- Materials cycle: A process involving raw materials, synthesis, processing, manufacture, assembly, application, and waste. The cycle is often represented as Earth → Raw Materials → … → Application → Waste → Earth.
- Glass composition: Glass is typically made of soda-lime, and borosilicate, but not alkaline materials.
- Creative Reuse: The purpose of recycling used waste product
- Deconstruction: Is a form of reusing existing materials; it involves breaking down items into their constituent components.
- Recycling alternatives: Natural gas, trees, and mineral ores are natural resources used as substitutes for raw materials in recycling. However, geothermal heat is presented as an exception.
- Reuse types: Downcycling, a type of reuse, is mentioned. It is distinguished from recycling and demolition.
Part II - Specific Recycling Questions
- Polypropylene recycle code: The recycle code for polypropylene is 5.
- High-density polyethylene recycle code: High-density polyethylene (HDPE) has a recycle code of 2.
- Polysterene recycle code: The recycle code for polystyrene is 6.
- Waste hierarchy second option: The second option in the waste hierarchy is reuse.
- Closed system: The environment, in terms of material resources, is a closed system.
- Typical recycled materials: Iron and steel scrap, aluminum cans, and glass bottles are often recycled.
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