Sustainable Issues

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  • Sustainability issues
    • Sustainability is about meeting the needs and demands of society without depleting resources or harming natural cycles for future generations
    • Effect on the enviroment
      • Renewable materials
        • Are grown from plants or animals
      • 6 R's
        • Reduce
          • the amount of material used in manufacture
        • Recycle
          • the materials already used
        • Re-use
          • design for disassembly and recover materials from 'end of life' products
        • Repair
          • products that have broken rather than replacing them
        • Refuse
          • to accept unethical or wasteful designs
        • Re-think
          • our attitude to enviromental  impact
      • Non-renewable materials
        • Are taken from oil, ores and minerals, and can't be replaced (they are finite)
    • Recycling / Disposing of Products
      • Products and packaging have symbols on them to show...
        • if they can be recycled
        • the percentage of recyclable material used
        • the materials they are made from, e.g. the type of plastic polymer used
        • if a fee has been paid to recover packaging (the Green Dot symbol used in many European countries)
        • materials that can be sorted and separated for recycling
        • products that can't be disposed of in normal household bins, e.g. electrical products and batteries
    • Re-using Materials
      • This reduces the amount of processing needed, so it's cheaper and more environmentally friendly.
        • Examples of re-using materials include..
          • refilling plastic or glass containers
          • re-using car parts
          • re-using clothing / shoes
    • Carbon Footprint and Product Miles
      • A carbon footprint is the amount of carbon produced by any human activity and its effects on the environment. It's measured in units of carbon dioxide
        • So, every activity you undertake and every product you use can be measured in terms of the...
          • amount of energy used at every stage
          • the carbon emissions produced
      • Product miles are the number of miles a product travels in its lifetime. For example, a typical product might travel as follows:
        • Source material to the primary processor
          • material to the factory
            • product to the distributor
              • Distributor to the retail outlet
                • Retail outlet to the user's home
                  • From home to recycling or tip.
    • Product Life Cycles
      • Approximately 90% of oil is burned as heating and transport fuel.
        • About 7% of oil is used to manufacture plastics
          • Many plastics can be recycled. they need to be collected and sorted into their different types.
            • Once sorted, the plastics can be granulated and cleaned to remove any impurities
              • The recycled plastics are melted and extruded into pellets
                • The pellets can be mixed with virgin plastic and moulded into new products.
          • Some plastics are dumped in landfill sites.
          • Some plastics are burned, which causes toxic fumes to be released into the atmosphere.

Comments

Former Member


Amazing! Very helpful + has shortened down the topic which seemed never ending to me!

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