Plastic pollution involves the accumulation of plastic products in the environment that can harm wildlife and humans. Plastic pollution can occur through micro, meso, or macro debris based on size. Plastic pollution can upset the food chain if ingested by plankton, pollute water and land if dumped or stuck in places, and pollute air if burned openly. Plastic recycling recovers different types of plastic to reprocess them into new products unlike the original form. The recycling process involves sorting plastics by type, washing, shredding, extruding or melting plastics, and making new materials. Bioplastics are an alternative to conventional plastics as they are made from renewable plant sources like corn starch or sugar cane

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