What A Load Of Rubbish' - PowerPoint PPT Presentation

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What A Load Of Rubbish'

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It could be plastic wrapping, drinks bottles, paper, left-over food, ... coming out of rotting rubbish can effect local ... it wont rot easily. Lasting ... – PowerPoint PPT presentation

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Title: What A Load Of Rubbish'


1
What A Load Of Rubbish.
2
Where Does It All Go?
  • Every day people throw things in the bin. It
    could be plastic wrapping, drinks bottles, paper,
    left-over food, cardboard anything. We usually do
    it without thinking twice.
  • Somebody else will take it away and we will never
    see it again.
  • But have you ever stopped to think about where
    all that
  • rubbish goes?
  • Does it vanish into space?

3
All The PsA Big Problem.
  • How we get rid of our rubbish is becoming a
    bigger problem
  • Populations are growing so the amount of rubbish
    that exists is also growing.
  • Packaging on products is growing.
  • People have more money so are replacing items
    more often and choosing to purchase expensively
    packaged goods.
  • Pressure is greater to upgrade to a better model.
    (Be it mobile phone, music player or games
    console.

4
So Where Does it go?
  • All rubbish ends up in one of three places
  • Incineration. (Burn It)
  • Landfill. (Bury it)
  • Recycle. (Turn it into something new/Use it
    again)
  • Which option is the best for the
  • Environment?-Discuss.

5
1a. Incineration.
  • This is the burning of rubbish in huge furnaces
    heated to extremely high temperatures (over 850
    degrees Celsius).
  • Ireland does not have regional incineration
    facilities for the treatment of either hazardous
    or non-hazardous waste. There are, however, 11
    small scale industrial incinerators in Ireland,
    which are mainly operated by the pharmaceutical
    and chemical sector.

6
1b. Incineration.
  • There has been a lot of debate in recent years as
    to whether incineration should take part on a
    large scale in Ireland. www.indaver.ie/downloads/i
    ncineration.pdf
  • There are benefits to incineration but also
    negatives.
  • The problem with incineration is that not all
    waste burns easily (e.g. metal) and the
  • fumes and smoke given off by burning are often
    poisonous and contain several greenhouse gases
    which also damage the
  • environment.
  • There are also believed to be health risks linked
    to incineration.

7
2a. Landfill.
  • This used to be considered the best option as
    there was plenty of space, and once the rubbish
    was coveredwith soil, it was out of sight and
    apparently gone forever. But landfill isnt
    actually such a good thing after all.

8
2b.Landfill.
  • Our reliance on landfill id decreasing.
  • The Central Statistics Office reported in 2007
    that almost 90 of Irish households recycled some
    of their household waste, compared to just 48 in
    1999.

9
Lasting Landfills.
  • Like incineration, sending rubbish to landfill
    has its problems.
  • We are running out of space for landfill.
  • Landfills give off a gas called Methane which
    contributes to climate change.
  • If we keep burying old items and replacing them
    with new, we are using up more and more natural
    resources like trees and oil.
  • Liquids coming out of rotting rubbish can effect
    local water supplies.
  • Most of the rubbish we put into landfill is not
    biodegradable. This means it wont rot easily.

10
Lasting Landfills.
  • Rubbish doesnt just disappear once you bury it,
    look at the length of time it takes the following
    to decompose
  • Aluminium can 300 years
  • Plastic bottle 450 years
  • Disposable nappy 500 years
  • Polystyrene cup Never
  • Glass bottle Never
  • Wool jumper 1 year
  • Paper bag 1 month

11
The Solution.
  • We need to find a solution to our problem.
  • 1. We need to produce less waste.
  • 2. We need to preserve our natural resources.
  • 3.We need to do something that is environmentally
    friendly
  • So Whats the solution

12
The Solution
  • You will be well familiar at this point with the
    Three Rs.
  • Reduce.
  • Reuse.
  • Recycle.
  • Recycling uses less energy than making something
    new from scratch and it uses less of the Earths
    natural resources.
  • Lets examine Recycling in more detail

13
Recycling.
  • Lets examine the recycling of 4 common household
    items
  • Glass.
  • Plastics.
  • Metals.
  • Paper.

14
How is Glass Made?

If we recycled more glass, less of these
precious resources would have to be used up.
15
Recycling Glass.
  • Glass accounts for 7.5 of household waste.
  • When glass jars and bottles are recycled, they
    are first sorted by colour.
  • The glass is then loaded up and transported to
    the nearest processing facility
  • The glass is then crushed into uniform size and
    called cullet.
  • The cullet is then mixed with other raw materials
    to create a batch mixture and ready to be made
    into new bottles.
  • The glass is then ready to be shipped to bottling
    companies for filling and distributing.

16
Recycling Glass.
  • In Ireland almost 80 of all glass packaging is
    recycled.
  • Remember
  • Not all glass can be recycled, mirrors, light
    bulbs, ceramic, Pyrex and window panes can not be
    recycled with regular glass.

17
Recycling Plastic.
Plastic accounts for 12.4 of the household bin.
  • Plastic is made from crude oil a valuable and
    limited non-renewable resource. There are many
    different types of plastic. When you look at a
    plastic item, you will see a different number at
    the base.
  • Recycling plastic saves 2/3 of the energy
    required when producing plastic from raw
    materials.

18
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19
The Process of Recycling Plastics.
  • 1.First, they examine the containers to make sure
    there is no foreign material present, such as
    labels and rocks, and that the group numbers
    match.
  • 2.A special machine then chops the containers
    into small pieces or flakes, after which they are
    washed and dried, before being melted in a
    special extruder.
  • 3. After filtering and cleaning, the flakes are
    then compressed into pellets, which is what the
    recycling plant sells to companies who make
    products of recycled plastic.

20
Recycling Plastic.
  • Lots of plastic rubbish ends up in landfill or
    being dumped in or near the sea so the worlds
    beaches and oceans are littered with floating
    rubbish that takes hundreds of years to
    decompose.
  • It is estimated that there are 46,000 pieces of
    plastic litter floating in every square mile of
    ocean on Earth.
  • Approximately 100,000 sea birds, whales, seals
    and turtles die each year as a result of eating
    or becoming tangled up in plastic rubbish.
  • Remember It is just as easy to recycle your
    plastic containers as it is to throw it away.

21
Recycling metal.
  • Drinks cans, food tins (beans, soup etc) and foil
    packaging are made of metal. So are cars,
    fridges, cookers, bikes.. Most metals can be
    recycled.
  • Aluminium and other metals are recycled
    separately
  • Aluminium cans are not magnetic therefore they
    will not stick to the magnet. Steel cans will
    stick to the magnet.

22
Recycling Aluminium.
  • Aluminium is made from Bauxite Ore which is a
    non-renewable resource.
  • Bauxite is only found in areas of Tropical
    Forests and mining
  • It is difficult, requiring a lot of energy. It
    produces a lot of waste, causes pollution and
    often destroys rainforests.
  • Bauxite may also run out one day.
  • Aluminium can be recycled over and over without
    loosing any of its properties. So it makes sense
    to recycle it.
  • Did you know A recycled aluminium can saves
    enough energy to run a television for three hours

23
Recycling Other Metals.
  • Steel is also mined from an ore.
  • All steel cans are 100 recyclable.
  • Its not just food and drink cans made from steel!
    - Most of your deodorants, hairsprays, polishes,
    paint cans and other household and DIY products
    are made out of steel too!
  • Other metals, gold, iron, copper, silver, lead
    and brass can also be recycled.
  • Did You Know Jack and Jill also recycle old
    goldwww.goldrush.ie

24
Recycling Paper.
  • Paper is made from pulp (mushed up wood!),
    chemicals and water. It uses lots of energy to
    produce.
  • Paper is recycled by shredding it and soaking it
    to a pulp before drying it out to make more
    paper.
  • 40 of all trees that are felled are used to make
    paper, so to save our forests, it is important to
    recycle it.

25
Recycling Target.
  • Finally, as a nation, Ireland is getting better
    at recycling. We have a target that by 2013, 35
    of all household waste will be recycled
  • But for recycling to work properly, people need
    to buy recycled products or all that recycling is
    a waste of time.
  • Keep waste from landfills-We can all do our bit.
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