e-waste processing

Regency Institute Of Technology

ELECTRONICS AND COMMUNICATON ENGINEERING

SUBMITTED BY:

V.NAVEEN KUMARN.MEGHA MURTHY

CONTENTSWhat is e-waste?Draw backs of e-wasteNeed for e-waste processingEquipment of e-waste processingHow is e-waste processed?Difficulties involved in e-waste processingBenefits of e-waste processing Draw backs of e-waste processing

What is e-waste?e-waste is an abbreviated form ofelectronic wasteElectronic waste may be defined as disposedcomputers,Office electronic equipment,entertainment device electronics,mobile phones, television sets and refrigeratorsThis 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-wastee-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 imbalanceChemicals 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 equipmentIt 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 equipmentIt 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?

Processes involved in e-waste processing

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 handBut due to rise in demand of e-waste processed products the processes are done by shredding equipmentA typical example is the ‘NADIN’ electronic work processing plant is NOVILSKAR,BULGARIA,the largest facility of its kind in eastern EuropeAdvantages 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 and value gain from device use

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 risk of

adverse affects The indirect impacts on human health are difficult to

quantify

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

THANK YOU

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