4. E-Waste
• The term E-waste applies to all the wastes
from or caused by electronic Items.
• Unwanted or unusable electronic products
such as computers, computer
peripherals, televisions, VCRs, DVD
Players, stereo equipment, hand cell phones
are commonly referred to as ‘electronic
waste’.
6. Telecommunication Waste:
•
•
•
•
Mobile phones
Telephones
Telephone exchanges Wireless Equipment cables and related scrap material
PC and TV
Electrical Waste:
• Switches
• Relays
• Connectors and related Scrap Material.
Electronic Waste:
•
•
•
•
•
Electronic – metal waste
Printed Circuit Boards
E – Equipment and Machinery
IC
Sockets Connectors.
Cable Waste:
• PVC
• Pre Insulated Copper and Aluminium Cable waste.
6
7. 1 Metric Ton of
Electronic scrap contains
more gold than
17 Ton of Gold from
gold ore
3.5 kg Silver
130 gm of
Copper
6000
mobile
phones
gives
340 gm of
Gold
140 gm of
Palladium
7
8.
9.
10. E-Waste In INDIA
• As per a report by Ministry of Environment and Forests
(MoEF), India generated 1,46,800 tones of E-waste was
generated in the year 2005 and the number is expected to
reach 8,00,000 tones by 2012.
• 65 cities generated more than 60% of the total E-waste
generated in India.
• Top E-waste generating cities in India are
Delhi, Bangalore, Chennai, Kolkata, Ahmedabad, Hyderabad, P
une , Surat and Nagpur. And top E-waste generating states in
India are Maharashtra, Tamil Nadu, Andhra Pradesh, Uttar
Pradesh, Gujarat, West Bengal, Delhi, Karnataka, MP and
Punjab.
12. Effects Of E-Waste
• Discarded electronics contains Hazardous
materials.
• If Disposed Improperly ,they pose a potential
threat to human health and environment.
• May contaminate groundwater.
15. Effects on Human Body
Source of
e-waste
Constituent
Health Effects
Solder in printed circuit
boards, glass panels and
gaskets in computer
monitors
Lead
Damage to nervous and
blood systems.
kidney damage.
Affects brain development.
Cadmium
Toxic irreversible effects.
Accumulates in kidney and
liver.
Chip resistors and
semiconductors
16. Source of
e-waste
Constituent
Health effects
Relays and switches,
printed circuit boards
Mercury (Hg)
Neural damage.
Damage to brain.
Respiratory and
skin disorders
Front panel of CRTs
Barium (Ba)
Muscle weakness
Damage to heart,
liver and skin.
Cabling and computer
housing
Plastics including PVC
Immune system damage,
Interfere with regulatory
hormones.
18. • Due to advancement in techniques the
old instruments are becoming outdated.
• India as a developing country needs
simpler, low cost technology for proper
management of E-waste.
• Industrial Revolution.
• There mismanagement can lead to the
pollution.
19. • This waste is not Eco-friendly.
• Hence there is a need to check this electronic
waste pollution by proper management.
21. • In industries management of e-waste should
begin at the point of generation.
• Waste minimization in industries involves
adopting:
1. inventory management,
2. production-process modification,
3. volume reduction,
4. Recovery and reuse.
22. Inventory management
• Proper control over the materials.
• Reducing both the quantity of hazardous
materials & amount of excess raw materials in
stock.
• All materials be approved prior to purchase.
• Hazardous material replaced by nonhazardous material if available.
23. Volume reduction
• Remove the hazardous portion of a waste
from a non-hazardous portion.
• 2 general categories:
– Source segregation
– Waste concentration
24. • Source segregation
• Segregation of wastes is in many cases a simple and
economical technique for waste reduction.
• Wastes containing different types of metals can be treated
separately so that the metal value in the sludge can be
recovered.
• Waste concentration
• Concentration of a waste stream may increase the
likelihood that the material can be recycled or reused.
• Methods include gravity and vacuum filtration, ultra
filtration, reverse osmosis, freeze vaporization etc.
25. Recovery and Reuse
• Eliminate waste disposal costs, reduce raw
material costs and provide income from a
saleable waste.
• Physical and Chemical techniques are
available to reclaim a waste material.
• For example, a printed-circuit board
manufacturer can use electrolytic recovery to
reclaim metals from copper and tin-lead
plating bath.
26. Sustainable product design
• Rethink the product design
– Efforts should be made to design a product with fewer
amounts of hazardous materials.
• Use of renewable materials and energy
– Solar computers also exist but they are currently very
expensive.
• Use of non-renewable materials that are safer
– product is built for re-use, repair and/or
upgradeability.
– Dell and Gateway
27. Management Option
•
Considering the severity of the problem, it is
imperative that certain management options
must be adopted to handle the bulk e-wastes.
•
Following are some of the management
options suggested for the government,
industries and the public.
28. Responsibilities of the Government
• Government should set up regulatory agencies.
• Government should provide an adequate
system of laws and controls.
• Government must encourage research into the
development and production of less hazardous
equipments.
29. Role Of Industries
• Generators of wastes should take responsibility
to determine the output characteristics of
wastes.
• All involved person should be properly
qualified and trained in handling e-waste in
industries.
• Companies should adopt waste minimization
techniques.
30. Responsibilities Of Citizen
• Reuse
• Donating used electronics to schools, nonprofit organizations, and lower-income
families.
• E-wastes should never be disposed with
garbage and other household wastes.
• These wastes should be collected by some
persons and they should be sent for various
processes like Reuse, Recycling, and
Donating.
31.
32. Conclusion
• E-waste is going to create lot of problems in
future.
• E-Waste management is of utmost importance.
• Proper management is necessary to minimize
its ill effects on human beings and nature.