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8/10/2019 Dont Waste the Waste
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CONTROL THE E WASTE HAZARD
In short, E waste are discarded and obsolete products such as oldcomputers , television
Sets and other electronic items and the major contaminant in this electronic items are
Lead, cadmium etc, they are dumped on this earth at a large scale, since it is used in
Pen drives to all electonic items, after their lifetime because of their non productive use,
They are dumped
In this presentation we will see some useful ways of controlling the ewaste
E WASTE CAN BE ANYTHING LIKE
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Amount of ewaste produced
Before we get into presentation, lets us have a look at the amount of ewaste produced
Images show the electronic wastage by country
In the United States, an estimated 70% of the
Landfills are of e waste
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EWASTE ON HEALTH
Source of e-wastes
Constituent
Health effects
Solder in printed circuit boards,
glass panels and gaskets in
computer monitors
Lead (PB)
•Damage to central and peripheral nervous systems, blood
systems and kidney damage.
•Affects brain development of children.
Chip resistors and
semiconductors
Cadmium (CD)
•Toxic irreversible effects on human health.
•Accumulates in kidney and liver.
•Causes neural damage.
•Teratogenic.
Relays and switches, printed
circuit boards
Mercury (Hg)
•Chronic damage to the brain.
•Respiratory and skin disorders due to bioaccumulation in
fishes.
Corrosion protection of untreated
and galvanized steel plates,
decorator or hardner for steel
housings
Hexavalent chromium (Cr)
VI
•Asthmatic bronchitis.
•DNA damage.
Cabling and computer housing Plastics including PVC
Burning produces dioxin. It causes
•Reproductive and developmental problems;
•Immune system damage;
•Interfere with regulatory hormones
Plastic housing of electronic
equipments and circuit boards.
Brominated flame
retardants (BFR) •Disrupts endocrine system functions
Front panel of CRTs Barium (Ba)
Short term exposure causes:
•Muscle weakness;
•Damage to heart, liver and spleen.
Motherboard Beryllium (Be)
•Carcinogenic (lung cancer)
•Inhalation of fumes and dust. Causes chronic beryllium
disease or beryllicosis.
•Skin diseases such as warts.
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CONTROLLING TECHNIQUES
Use of certified IT Asset Disposal (ITAD)
Need to design Electronics whose different components and materials are easy to
separate for disposal and /or reuse
Television sets can be re-used in this way
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CONTROLLING TECHNIQUES CHART
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DONT WASTE YOUR WASTE
Types of recycling
• Advanced Thermal Recycling (ATR) system
• biomass gasification,
• distillation process,Advanced
thermal
recyclingprocess
Biomass
gasifications
Distillation
process
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1.Advanced Thermal Recycling (ATR) system
An Advanced Thermal Recycling (ATR) system (or ATR system) is
an advancement of existing energy-from-waste (EfW) technology.
An ATR system converts ewaste into either electricity or steam for
district heating or industrial customers.
Specifically, ATR systems consist of the following:
Ewaste and human combustion, boiler and combustion control
system, energy recovery and air pollution control equipment;
Combustion bottom ashnd fly ash treatment systems that produce
commercially reusable products; and
An optional pre-processing system to recover recyclable materials
contained in the MSW delivered to the facility before the MSW
enters the thermal processing area of the facility.
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2.Biomass gasification
From Waste To Green Energy Power Plants and through this method around 50
Megawatts of energy is produced
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3.Distillation process
Through distillation
Process, ewaste can be
processed
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