this small presentation is compiled using various sources obtained from internet

1. Plastic pollution and
recycling
BY
S.SRIVIDHYA
III BIOCHEMISTRY

2. Plastic pollution
 Plastic pollution involves the accumulation
of plastic products in the environment that adversely
affects wildlife, wildlife habitat, or humans.[1] Plastics
that act as pollutants are categorized into micro-,
meso-, or macro debris, based on size.
 Can cause other pollutions secondarily
 Affects thyroid gland and reproductive system

3. Effects of Plastic Pollution
Upsets the Food Chain due to ingestion by
planktons
Water Pollution: plastics dumped into the sea
Land Pollution: stuck on poles, traffic lights,
trees, fences, tower etc
Air Pollution due to Burning of plastic in the
open air
Kills Animals (ex:cows)

4. What is Plastic Recycling?
 Plastic recycling is the process of recovering
different types of plastic material in order to
reprocess them into varied other products,
unlike their original form.
 A recycled plastic cant be recycled again
usually

5. Sorting:

6. Washing

7. Shredding(cutting)
 To separate
based on
weight.
• Different
plastics are
used to
make
different
materials.

8. Extruding(melting):

11. Common Recycled Plastics
 Polyethylene Terephthalate
 High Density Polyethylene
 Polyvinyl Chloride
 Low Density Polyethylene

12. Biodegradation of plastics steps

13. Mechanism

14. Biodegradation: most common : genus Bacillus

15. Bioplastics
 Plastics made from plant sources are said to be bioplastics
 Composition: plant oil, cellulose, corn starch, potato starch, sugar cane,
etc.,

19. Solutions for plastic pollution