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Disposal pp

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  • 1. Disposal
  • 2. Task
    • You are a resident in a medium sized town and your community needs to decide what system of waste disposal your town should have once the current landfill is full (which will be in two years).
    • You have looked into the choices and they include:
  • 3. Landfill
    • Place where garbage is buried.
    • Some are lined with plastic to protect surrounding soil and groundwater, and new garbage is covered with soil each day.
  • 4. Pros & Cons of Landfills
    • Pros
    • Provides jobs.
    • Plastic liner protects soil and groundwater.
    • Cheaper and cleaner than incinerator
    • Cons
    • Need land.
    • People do not like to live nearby- smell, chemicals.
    • Transport costs if landfill is further away from town.
    • Plastic liner eventually breaks and leaks hazardous materials.
    • Poorer people are more likely to live closer to landfills so there is more chance of them being exposed to toxins.
  • 5. Waste-to-Energy Plant
    • These are incinerators (burners) that capture energy from burning trash .
    • There are currently 89 of these in the USA and they burn 13% of the nation’s garbage.
  • 6. Pros & Cons of Waste-to Energy Plants
    • Pros
    • Create cheaper electricity for community.
    • Reduce the volume of garbage in landfill.
    • Cons
    • Incinerator has to be built next to landfill so the ash can be buried there.
    • Burning trash leads to chemicals being released in air that can lead to disease.
    • Incinerators will discourage recycling
    • Too much energy used to burn trash.
    • Expensive to build incinerator.
    • *Some countries have laws to make sure recyclable materials do not end up in incinerators (e.g. Denmark).
  • 7. Corporate Responsibility
    • Many items made for planned obsolescence (designed to only last for a certain amount of time before they break).
    • Some places (e.g. Maine) have laws that make the manufacturer bear the cost of recycling or disposing of items.
    • Pros
    • Companies accountable for the trash they create.
    • Manufacturers will make items that last longer.
    • Cons
    • Manufacturers would make items more expensive- consumers have to pay more.
  • 8. Recycle Plant
  • 9. Pros & Cons of Recycling Plant
    • Pros
    • Building a recycle facility cheaper than landfill or incinerator.
    • Recycling plant could employ more people than landfill or incinerator.
    • Sell recycled material to cover operating costs.
    • Cons
    • Finding markets to sell recycled material.
    • Need to educate people about recycling to encourage them to recycle more.
    • Not all materials can be recycled, so may still need a small landfill.
    • * Some places have laws about recycling. You may be fined if you put the wrong things in for recycling, and you can be charged for throwing garbage away.
  • 10. Packaging
    • Packaging waste includes boxes, tissue paper, envelopes, food packaging, plastic cushioning material, metal cans, plastic & glass containers.
    • Pros/What could be done
    • Flat pack furniture. Furniture is designed to fit the smallest box possible.
    • Source reduction- reducing the amount of materials that are discarded.
    • Source reduction is cheapest option.
    • Cons
    • People want things they buy to look nice.
    • * This is the biggest sources of trash, especially food containers.
    • *Some places have laws that make manufacturers use minimal packaging. If a company does not use minimal packaging, it may not be able to sell products in those places, and residents have to pay to dispose of the packaging.
  • 11. Time to decide… ???
    • 1. In groups of 3 or 4 think about whether you can add any more pros and/ or cons to the disposal systems discussed:
      • landfill
      • waste to energy plant
      • corporate responsibility
      • recycle depot
      • reduced packaging
    • 2. Discuss and decide what disposal system would you choose? Give reasons for your answer.
    • 3. Be prepared to share with the class.
  • 12. Sources
    • Book
    • Buy, Use, Toss? A Closer Look at the Things We buy. Facing the Future, 2010.
    • Images
    • Landfills In The, www.ctrecyclingguide.com/ . Retrieved 13 Nov 2010.
    • Landfill Crosssection, www.ottawaskeptics.org/the-reali...art%3D70 . Retrieved 13 Nov 2010.
    • Landfill. http://blog.lib.umn.edu/evans391/architecture/Garbage_landfill.jpg Retrieved 13 Nov 2010.
    • Waste to Energy Plant. Vestforbrænding, the largest waste -to- energy plant in Denmark handling more. www.dbdh.dk/artikel.asp%3Fid%3D4...mid%3D24 Retrieved 13 Nov 2010.
    • Waste to Energy plant. WASTE TO ENERGY : The H. C. Ørsted and Avedøre power stations in Copenhagen. www.mnn.com/earth-matters/energy...n-energy Retrieved 13 Nov 2010.
    • Handphone. http://www.b2btrade.biz/images2/img476718d97c949.jpg Retrieved 13 Nov 2010.
    • Alarm clock. http://www.freewebs.com/marvelouscreations/alarm-clock-CB-1.jpg Retrieved 13 Nov 2010.
    • Pens http://www.ssbmetal.com/img/Promotional_Pens.jpg Retrieved 13 Nov 2010.
    • Toothbrush http://besttoothbrushs.com/wp-content/uploads/2010/05/Toothbrush.jpg Retrieved 13 Nov 2010.
    • Recycle Plant http://www.gpmglass.com/IMG/jpg/Recycling_Plant.jpg Retrieved 13 Nov 2010.
    • Recycle depot http://www.banff.ca/Assets/Images/Locals+Images/Environment/Recycling+Depot.jpg Retrieved 13 Nov 2010.
    • Crushed drink bottles http://www.smh.com.au/ffximage/2007/07/28/recycling_wideweb__470x312,0.jpg Retrieved 13 Nov 2010.
    • Packaging http://www.dfwimprint.com/images/packaging.jpg Retrieved 13 Nov 2010.
    • Packaging http://www.greatlittlebox.com/files/Image/Products/Protective%20Packaging%20Picture.jpg Retrieved 13 Nov 2010.
  • 13.
    • Has this lesson made you more thoughtful about where your trash goes? In what way?
    • Who do you think should be responsible for disposing of hard- to- recycle products or those not designed to last long? Consumers? Manufacturers? Governments?
    • How could efficient waste management reduce the need for extracting natural resources to make new products?
    • Researchers have found out that we often throw out very different kinds and amounts of trash than we think we do. Why might we have a distorted image of our trash? How could people become more aware about the trash they create?
    • You have heard of the popular waste management strategy of “ reduce, reuse, recycle. ” Why do you think the words are listed in that order?
    Questions to Think About:

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