3. Plastic recycling is a technique of
recovering waste plastic and recycling it to
a useful product.
For example: Plastic bottles could be
recycled to make plastic chairs and tables.
4. INTRODUCTION
50% of the plastic is used only once.
Plastic accounts for around 10% of the total waste we generate.
51% of total waste goes into landfills.
Plastic constitutes approximately 90% of all trash floating on the ocean's
surface.
Plastic takes 500-1000 years to degrade.
1600 businesses are involved in recycling post-consumer plastics.
Recycling 1 ton of plastic saves 1000-2000 gallons of gasoline.
5.
6. WHY
RECYCLE?
In landfill, both synthetic and naturally
occurring polymers don't get the necessary
exposure to UV by microbes to degrade.
Recycling is a viable alternative in getting
back some of this energy in the case of
some polymers instead of incineration.
8. 1.COLLECTION
The recycling facilities gather
available recyclable plastic materials
in their area, such as from roadside
collections, special recycling bins, or
even directly from industries.
9. 2.MANUAL SORTING
All plastic items that are
collected are then sorted
according to the various
plastic types indicated by
the plastic recycling
symbols and codes on
them. Unwanted non-plastic
materials found in the piles
are promptly taken out.
10. 3.CHIPPING
After sorting, the sorted
plastic products are
prepared for melting by
being cut into small
pieces. The plastic items
are fed into a machine
which has sets of blades
that slice through the
material and break the
plastic into tiny bits.
11. 4. WASHING
Residue of products
originally contained in the
plastic items and various
other contaminants are
removed.
A particular wash
solution consisting of an
alkaline, cationic detergent
and water are used to
effectively get rid of all
the contaminants on the
plastic material.
12. 5. PALLETING
The cleaned and chipping pieces of
plastic are then melted down put
through a machine which shapes the
melted plastic into thin noodle-like
tubes. The plastic tubes are then cut
into small pallets. The pallets are then
ready to be reused and remade into
new items.
13. ADVANTAGES
RECYCLING ONE TON OF PLASTIC
CAN SAVE 7.4 CUBIC YARDS OF
LANDFILL SPACE.
RECYCLING PLASTIC CONSERVES
THE NATURAL RESOURCES AND
ENERGY THAT
WOULD BE REQUIRED TO
PRODUCE FROM SCRATCH.
PROTECTS ENVIRONMENT. CREATE GREEN JOBS.
14. DISADVANTAGES
When the material is
melted down,
VOC'S(volatile organic
compound) are released
into the atmosphere.
After plastic has been
recycled once, it's very
rarely suitable for
a second round of
recycling.
Much of recycled plastics
finds its new home as
a less useful product.
Setting up
new recycling unit
involves high cost.
