E waste ppt seminar

Govt. Engg. College Ajmer
SEMINAR
ON
“E-WASTE”
GUIDED BY:- SUBMITTED BY:-
Mr MUKESH GUPTA SHUBHAM GUPTA
VIII SEMESTER
12EC79

CONTENTS
1. What is e-waste ?
2. Sources of e-waste
3. Categories of e-waste
4. Composition of e-waste
5. Hazards associated with e-waste
6. E-waste scenario in India
7. State & City wise e-waste scenario
8. E-waste Disposal
9. Recycling of E-waste
10.Conclusion

E-waste ?
It may be defined as, computers, office electronic
equipment, entertainment devices & many other
electronic or electrical devices which are
unwanted, broken & discarded by their original
users are known as ‘E-Waste’ or ‘Electronic Waste’
E-waste

Categories of E-Waste
 Large household appliances
 Small household appliances
 IT & Telecommunication equipment
 Consumer equipment
 Lighting equipment
 Electrical and electronic tools
 Toys and sport equipment
 Medical devices
 Monitoring and control instruments
 automatic dispensers

How these become E-Waste?
Reasons:-
 Advancement in technology
 Changes in Style, Fashion & Status
 Nearing the end of their useful life
 Not taking precautions while handling them

Composition of E-waste
Electronic appliances are composed of hundreds
of different materials that can be both toxic and
equally of high value. While majority materials
such as iron, aluminium, plastics and glass
account for over 80 % weight of e-waste,
whereas valuable and toxic materials are found in
smaller quantities but are still of high importance.

Hazards associated with E-waste
There are many harmful materials used in consumer
electronics include :
 Lead
 Mercury
 Cadmium
 Hexavalent chromium
 Plastic including PVC etc.

Effects on human & environment

E-waste scenario in India
India generates about 4.1 million tonnes of
e-waste currently and it is expected to reach
8 million tonnes by 2025. In India e-waste is
growing at the rate of 10% per annum and it
constitutes 3- 8% of municipal solid waste.

State & City wise E-waste scenario

E-Waste Disposal
Methods of treatment & disposal
 Landfilling
 Incineration
 Pyrolysis
Existing E-Waste Management Practices in India
 Plastic Waste
Products made from plastics such as keyboards, casing, front or real panel.
Miscellaneous parts encased in plastics Management Practice - The shredding & melting

 Printed Circuit Board Waste
Used in electronic parts such as motherboard, TV internal circuits, etc.
Management Practice – De soldering & open burning to remove metals.
 Miscellaneous Waste
Chips, electronic wires, broken glass waste, copper containing waste.
Management Practice- Chemical stripping & open burning & some of the waste is mixed with the
municipal solid waste
 Liquid Waste
It contains internal chemicals, general waste, acid stripping waste. Management Practice
-Sewerage system

Recycling of E-Waste
 Disassembly/dismantling
Disassembly is the systematic removal of components, parts, a group of parts or a
subassembly from a product which is in E-Waste.
 Upgrading
It includes comminuting and separation of materials using mechanical / physical and/or
metallurgical processing. Methods to recover materials include incineration and refining.
 Materials Recovery
The material are recovered by recycling facilities. The plastic, glass, metals can be
recovered by sorting them before mixing with other waste.

 While the world is marvelling at the
technological revolution, countries like India
are facing an imminent danger.
 E-waste of developed countries, such as the
US, dispose their wastes to India and other
Asian countries.
 Major reasons for exports are cheap labour.
 Recycling a computer costs USA and Europe
20 US dollars whereas India only 2 US dollars.
Indian Scenario

Advantages of Recycling E-Waste
• Asset recovery
• Reduction of need for landfills
• Reduction of junks and clutters
• Resale and Reuse
• Creation of jobs

CONCLUSION
1. As far as e-waste is concerned, it has emerged as one of the fastest growing waste streams world
wide today.
2. Electronic equipment is one of the largest know sources of heavy metals without effective
collection, reuse, and recycling systems, they will be dangerous to environment
3. Reuse and recycling of electronic equipment is a beneficial alternative than disposal
4. Product design by using safe and environment friendly raw materials and most emerging
technologies

E waste ppt seminar

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Similar to E waste ppt seminar

Similar to E waste ppt seminar (20)

Recently uploaded

Recently uploaded (20)

E waste ppt seminar