The word plastic is derived from
the Greek (plastikos) meaning capable
of being shaped or
moulded, from (plastos)
meaning ...
Plastic are materials formed by
long chains of carbon and
hydrogen called
polymers, formed by units
called monomers. The m...
Most of the plastics are made up from
these three raw materials:
Petroleum

•Non – Renewable
•Natural Resource

Coal

•Non...
Plastics are made from fossil fuels.
Fossil fuels contains hydrocarbons, which
provide small building blocks called monome...









Plastics are strong , light weight, flexible and
durable.
Plastics can be easily moulded into a variety
of ...
 Plastics

are good electricity and
heat insulators.
 Plastics do not corrode or decay.
 Plastics are cheap and dispens...
Groups of Plastic
Thermoplastics

Thermosetting

Thermoplastics can
be repeatedly
softened by heating
and hardened by
cool...
Plastic
production

Plastic waste
disposal

100 million
tonnes/year

25 million
tonnes/year

Annual increase of
Production...
Percentage of Plastic used in different fields

Medical Mechanical
2%
Engineering
2%

Other

Toys/Sports 3%
3%

Agricultur...
 80%

of thermoplastics, and 20% of
thermo set plastic wastes are
generated in India.
 The use of plastics in India is 3...
o

o

o

Plastic is one of the few new chemical
materials which pose environmental
problem.
Plastic in the environment is ...
Toxic By
products/
waste

incineration

distribution
Manufacture
Of plastics

End of life

Use of plastics

Disposal of
pl...






Plastic pollution on land is both physical and
chemical.
Plastic reduces soil fertility by forming the part
of m...
Industries emit large amounts of carbon
monoxide, dioxin and hydrogen cyanide.
 These gaseous pollutants contaminate air
...
Plastics wastes dumped in water courses
contaminate and poisons freshwater life.
 On leaching in water, plastic can easil...






Discarded Plastic usually ends up within marine
sources. The Pacific Ocean has one of the largest
dumping ground ...
Toxic chemicals contained in plastics cause
neurological problems, cancer, birth
defects, hormonal changes gastric
ulcer, ...
Disposing of plastic waste is trickier than
dealing with other traditional landfill
material. Not only does plastic take
t...




Methods to convert waste plastics into
hydrocarbon fuel have been in development for
decades. But the associated cos...
Plastic recycling is the process
of recovering scrap or waste plastic and
reprocessing the material into useful
products, ...
Bioplastics are a form of plastics derived from
renewable biomass sources, such as vegetable fats
and oils , corn starch o...
Plasma pyrolysis or plasma gasification is a
waste treatment technology that gasifies
matter in an oxygen-starved environm...
Prevention Strategies
REFUSE –
refuse plastic
carry bags at
the grocer’s
shop. Use
natural fibre
bags.

REDUCE –

REUSE –
...







Lead by example
Ask your friends and family to join you
Speak to city council
Write letters to government offi...


Plastic Waste Management has assumed great
significance in view of the urbanisation
activities.



Various strategies ...
Mahatma Gandhi –
―You must be the change if you wish to see
in the world‖.
 Time for a new ethic :
Save yourself and you ...
ban/say no to plastics
ban/say no to plastics
ban/say no to plastics
Upcoming SlideShare
Loading in …5
×

ban/say no to plastics

2,352 views

Published on

it is a presentation which includes all basic parts and knowledge about importance and destruction caused by plastics!

Published in: Education, Business
0 Comments
4 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
2,352
On SlideShare
0
From Embeds
0
Number of Embeds
4
Actions
Shares
0
Downloads
88
Comments
0
Likes
4
Embeds 0
No embeds

No notes for slide

ban/say no to plastics

  1. 1. The word plastic is derived from the Greek (plastikos) meaning capable of being shaped or moulded, from (plastos) meaning moulded. It refers to their malleability, or plasticity during manufacture, that allows them to be cast, pressed, or extruded into a variety of shapes — such as films, fibres, plates, tubes, bottles, boxes, and much more.
  2. 2. Plastic are materials formed by long chains of carbon and hydrogen called polymers, formed by units called monomers. The most important characteristic of plastic is the capacity of deformation.
  3. 3. Most of the plastics are made up from these three raw materials: Petroleum •Non – Renewable •Natural Resource Coal •Non – Renewable •Natural Resource Cellulose •Non – Renewable •Natural Resource Plastics
  4. 4. Plastics are made from fossil fuels. Fossil fuels contains hydrocarbons, which provide small building blocks called monomer. These hydrocarbons monomers are link together to form long carbon chains called polymers. The process of forming long molecules is called polymerization. The polymerization form viscous, sticky substances known as resins, which are used to make plastic products. These joined molecules form a plastic resin known as polythene.
  5. 5.       Plastics are strong , light weight, flexible and durable. Plastics can be easily moulded into a variety of shapes and sizes. Plastics have excellent mechanical strength (tensile properties, tear resistance, and impact resistance). Plastics are relatively cheaper than compared to metals like steel, tin etc. Plastics are reusable and recyclable. Plastics have long use age life.
  6. 6.  Plastics are good electricity and heat insulators.  Plastics do not corrode or decay.  Plastics are cheap and dispensable.  Plastics are resistant to chemicals, water or grease.
  7. 7. Groups of Plastic Thermoplastics Thermosetting Thermoplastics can be repeatedly softened by heating and hardened by cooling. Thermosetting plastics harden permanently after being heated once. E.g. Polythene. e.g. Bakelite.
  8. 8. Plastic production Plastic waste disposal 100 million tonnes/year 25 million tonnes/year Annual increase of Production = 9% Plastics in municipal solid waste = 11.8% By weight
  9. 9. Percentage of Plastic used in different fields Medical Mechanical 2% Engineering 2% Other Toys/Sports 3% 3% Agriculture 7% Footwear 1% Transport 8% Furniture/Houseware 8% Electrical and Electronics 8% Packaging 35% Building and Construction 23%
  10. 10.  80% of thermoplastics, and 20% of thermo set plastic wastes are generated in India.  The use of plastics in India is 3kg per person per year.  The total consumption of plastic in India is about 4 million tonnes and the waste generated is about 2 million tonnes.  About 20% of solid municipal wastes are plastics in India.
  11. 11. o o o Plastic is one of the few new chemical materials which pose environmental problem. Plastic in the environment is regarded to be more an aesthetic nuisance than a hazard, since the material is biologically quite inert. Plastic is cheap, it gets discarded easily, and, its persistence in the environment can do great harm.
  12. 12. Toxic By products/ waste incineration distribution Manufacture Of plastics End of life Use of plastics Disposal of plastics Land fills recycling Leaching of chemicals& Enter human Food chain
  13. 13.     Plastic pollution on land is both physical and chemical. Plastic reduces soil fertility by forming the part of manure for years. Plastic spoil environmental aesthetics and hygiene. Plastics in soil can lessen the growth of plants and trees by blocking the absorption of minerals, water and other nutrients.
  14. 14. Industries emit large amounts of carbon monoxide, dioxin and hydrogen cyanide.  These gaseous pollutants contaminate air and causes respiratory diseases, nervous system disorders and immune suppression in human beings. 
  15. 15. Plastics wastes dumped in water courses contaminate and poisons freshwater life.  On leaching in water, plastic can easily enter the human food chain and harm human health.  Plastic debrises clog the sewage drains and create stagnant water which will be an ideal habitat for mosquitoes and other parasites.  Chocked drains cause flooding during monsoons. 
  16. 16.    Discarded Plastic usually ends up within marine sources. The Pacific Ocean has one of the largest dumping ground for plastics, unknown numbers of sea birds marine mammals and fish ingest plastics which causes a variety of negative health effects and leading to their deaths. Effects of plastics on marine life includes entanglement and ingestion of plastics debris by marine vertebrates. Plastic is mistaken for food and is eaten up by birds, turtles, seals, and whales. This may choke them, or impede digestion and causing starvation.
  17. 17. Toxic chemicals contained in plastics cause neurological problems, cancer, birth defects, hormonal changes gastric ulcer, thyroid problems and cardiovascular disease.  The endocrine disrupting chemicals (EDCs) in plastics have been contributing to obesity and diabetes.  The plastic bottles may leach cancer – causing chemicals such as phthalates (a component makes plastic pliable) and Bis – 
  18. 18. Disposing of plastic waste is trickier than dealing with other traditional landfill material. Not only does plastic take thousands of years to break down, it can leach dangerous poison into the environment. Plastic is not going away, but how plastic waste is managed is becoming more sophisticated. Managing plastic waste starts at home with the consumer, but ultimately depends on governments around the world as well.
  19. 19.   Methods to convert waste plastics into hydrocarbon fuel have been in development for decades. But the associated costs to commercialize the technologies were prohibitive in previous years when crude oil was relatively inexpensive. As costs for crude oil have risen, concerns about energy security and the environment are renewing efforts in plastics-to fuel recycling processes. Scientists hope the technologies will soon provide the nation with cheaper, alternative fuels that can help reduce foreign oil dependency.
  20. 20. Plastic recycling is the process of recovering scrap or waste plastic and reprocessing the material into useful products, sometimes completely different in form from their original state. For instance, this could mean melting down soft drink bottles and then casting them as plastic chairs and tables. Typically a plastic is not recycled into the same type of plastic, and products made from recycled plastics are often not recyclable.
  21. 21. Bioplastics are a form of plastics derived from renewable biomass sources, such as vegetable fats and oils , corn starch or micro biota .Common plastics, such as fossil-fuel plastics, are derived from petroleum. These plastics rely more on scarce fossil fuels and produce more greenhouse gas. Some, but not all, bioplastics are designed to biodegrade. Bioplastics which are designed to biodegrade can break down in either anaerobic or aerobic environments, depending on how they are manufactured. There is a variety of bioplastics being made; they can be composed of starches, cellulose, or other biopolymers. Some common applications of bioplastics are packaging materials, dining utensils, food packaging, and
  22. 22. Plasma pyrolysis or plasma gasification is a waste treatment technology that gasifies matter in an oxygen-starved environment to decompose waste material into its basic molecular structure. It uses high electrical energy and high temperature created by an electrical arc gasifies and does not combust the waste as incinerators do. This arc breaks down waste primarily into elemental gas and solid waste (slag), in a device called a plasma converter.
  23. 23. Prevention Strategies REFUSE – refuse plastic carry bags at the grocer’s shop. Use natural fibre bags. REDUCE – REUSE – Choose products Reuse non with – toxic minimum containers plastic and goods. packaging. RECYCLE – Recycling is not a sustainable solution. - Can be a last option.
  24. 24.      Lead by example Ask your friends and family to join you Speak to city council Write letters to government officials Get your school involved.
  25. 25.  Plastic Waste Management has assumed great significance in view of the urbanisation activities.  Various strategies are being devised to mitigate the impact of plastic waste in India.  Some significant challenges still exist from both technological factors and from economic or social behaviour issues relating to the collection of recyclable wastes, and substitution for virgin material.
  26. 26. Mahatma Gandhi – ―You must be the change if you wish to see in the world‖.  Time for a new ethic : Save yourself and you save the environment. 

×