Regency Institute Of Technology

ELECTRONICS AND COMMUNICATON

ENGINEERING

SUBMITTED BY:

CONTENTSWhat is e-waste?

Draw backs of e-waste

Need for e-waste processing

Equipment of e-waste processing

How is e-waste processed?

Difficulties involved in e-waste processing

Benefits of e-waste processing

Draw backs of e-waste processing

What is e-waste?e-waste is an abbreviated form of

electronic waste

Electronic waste may be defined as disposed

computers,Office electronic equipment,

entertainment device electronics,mobile

phones, television sets and refrigerators

This includes used electronics which are destined

for re-use,re sale,salvage,recycling (or)

disposal.Other are re usable(working and

repairable electronics)&secondary scrap

Draw backs of e-waste e-waste presents a potential

security threat to individuals and exporting countries

Hard drives that are not properly erased before the computer is disposed of can be reopened, exposing sensitive information

Credit card number,private financial data, account information and records to online transaction scan can be accessed by most willing individuals

e-waste causes ecological imbalance

Chemicals which were used in making of electronic equipment after disposing releases the harmful chemicals into soil and environment and causes pollution

Need for e-waste processing

In order to reduce the e-waste pollution processing

of e-waste must be done accordingly

Due to over pollution caused by these e-wastes the

governments of each and every country declared

special environmental and e-waste processing acts

in order to reduce the e-waste

This has raised the need and deed for the e-waste

processing

Due to continuous disposal of metals used in the

manufacturing of electronic waste one or the other

day metals may become extinct. So there is a need

for e-waste processing

Equipment required for e-waste processing

Cathode ray seperation and recycling equipment

It processes the cathode ray tube in the disposed waste of the computers

Printed circuit board(PCB processing equipment)

It is used in processing of printed circuit boards from which the metals such as copper and aluminium are extracted

Waste cables and wires processing equipment

It accepts size between 2.5 and 3.0mm waste cables and wires and final output size is 1 to 2 mm copper and plastic granule

How is e-waste processed?

In many developed countries electronic waste processing first involves dismantling the equipment into various parts such as metal frames,power supplies,circuit boards,palstic often by hand

But due to rise in demand of e-waste processed products the processes are done by shredding equipment

A typical example is the ‘NADIN’ electronic work processing plant is NOVILSKAR,BULGARIA,the largest facility of its kind in eastern Europe

Advantages of this process are the human ability to recognise and save working and repairable parts such as chips,RAM’s etc

A hopper conveys material for shredding into an un

sophisticated mechanical separator with screening and

gramilating machines to separate constituent metal and

plastic fractions such regulating machinery is enclosed and

employs a dust collection system

Some of the emissions are caught by scrubbers and

screens,magnets,eddy currents and tromel screens

employed to separate glass,palstic,ferrous and non ferrous

metals which can then be separated at smelter

Leaded glass from CRT is used in car batteries,ammunition

and lead wheel weights are sold to foundries as a fluxing

agent in processing raw lead ore

Cu,Au,Pd,Ag,Sn are valuable metals sold to smelter for re

cycling

An ideal electronic waste processing plant combines

dismantling for component recovery with increase cost

effective processing of bulk electronic waste

Devices still need eventual processing but by allowing other

to purchase used electronics,processing can be post poned

Difficulties involved in e-waste processing One of the major challenges is recycling the

printed circuit boards from electronic wastes

The circuit boards contain precious metals such

as gold,silver,platinum,etc..and other base metals

such as copper,aluminium and iron

One way e-waste is processed by melting circuit

boards,burning cable sheathing to recover copper

wire and open pit acid leading to separating

metals of value

Initial cost for establishing e-waste processing

plant is high

Skilled labour are required to operate the plant

benefits of e-waste processing Most electronics devices contain a variety of

materials,including metals that can be recovered for

future uses

By dismantling and providing reuse possibilities intact

natural resources are conserved and air and water

pollution caused by hazardous disposal is avoided

Additionally processing of e-waste reduces the

amount of green house gases emissions caused by

manufacturing of new products

The new products which are processed from these

industries can be used in the form of manufactured

goods which reduces the capital investment of

concerned industries

Draw backs of e-waste processing

e-waste processing has direct and indirect effects on human health conditions

Direct impact on human health may be caused by dust in indoor air generated in manual and mechanical dismantling processes.

ex:when processing plastics (or)CRT(cathode ray tubes)

Filter dust generated in mechanical dismantling processes

Noise emission during mechanical and manual dismantling processes(conveyer belt and hammering)

Deviations from occupational safety standards

The compliance with these values should minimise

ConclusionAt last, we conclude that today every one has to

realise the importance of e-waste processing and

government should provide encouragement for

firms which were especially established for this

purpose

Mankind is responsible for the invention and for

the disposal of the electronic waste, so the

responsibility for processing the electronic waste

also depends on the mankind

List of indian firms that are destined and determined for the reduction of e-waste reduction in india

Sl. No

State Number of Registration on Recycler

Name & Address

1. Andhra Pradesh 2 Unit 1. M/s. Earth Sense recycle Private Limited, Plot No. 37,APIIC Industrial Park, Mankhal, Maheshwaram Mandal, Rangareddy District - AP (1,800 MTA)

2. M/s Ramky E- Waste Recycling Facility (Ramky Enviro Engineers Ltd) , Plot No. 25 A, Hardware Park, K. Raviryal (V), Maheshwaram (M), R.R. Dist -500081 (10,000 MTA) Total = 11, 800 MTA

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