This is a presentation on how waste can be efficiently manged and recycled.

1. Magnetic Waste separator

2. E-Waste and Metallic waste .
 Electronic waste or E-waste as it is popularly called is a collective terminology for
the entire stream of electronic wastes such as used TV's, refrigerators, telephones,
air conditioners, computers, mobile phones etc.
 Computer waste is the most significant of all waste due to the gigantic amounts as
well as the rate at which it is generated. In addition, its recycling is a complex
process that involves many hazardous materials and poses significant
environmental and health hazard.
 E-waste is of particular concern to India currently. India is setting a shining
example not only in the IT sector , but unfortunately , also in importing e-waste.
The primary source of computer waste in India is imports from developed countries
though, recently , domestic waste also has shot up due to the astounding growth in
the IT sector and its application in various new sectors, including governance .
 In India the electronic scrap processing industry is in the stage of infancy . The
operations are restricted to dismantling of computer hardware, manual
segregation of scrap after breaking the scrap by using mechanical equipments like
jaw crushers and cutters.

3.  The scraps are segregated into plastic components, glass, ferrous material
and non-ferrous material. Individuals in the un organised sector also carry
out such operations. No industry is available in the organized sector , which
reprocesses the electronic scrap for recovering metals. The printed circuit
Boards available in computer are segregated and exported to reprocessing
facilities at Belgium, Hong Kong, China & Taiwan for metal recovery .
Metals recovered are usually copper and very small quantity of gold.
 So there is a growing need for us to manage this waste locally at large and
speedy level so that we can manage the waste we are importing and
generating everyday along with generating a considerable economy with it .

4.  In India 1,88500 tonnes garbage is
generated everyday out of which
glass , paper ,metal ,rubber and
plastic could be recycled and reused
but are instead dumped in the
landfills which is fast shrinking in
area.
 That is around 14 % of the waste can
be easily recycled .That is 26390
tones everyday.
 Metal waste generated is 1885 tones
everyday which if recycled could
generate economy and would be
environment friendly.

5. Scrap Metal
1. Aluminium Accessories scrap
2. Brass Accessories
3. Copper armature
4. Nickel Cathode
5. Cadmium Plate
6. Tin ingots
7. Lead ingots
8. Lead Lngo Desi Soft
9. Zinc Dross
10. Zinc slab
11. Iron
 122,000
 313,000
 416,000
 1,055,000
 172,000
 1,385,000
 135,000
 131,000
 151,000
 173,000
 23000
Price in Rupees per metric
tonnes

6. 1. Our Project aim today is to first try and separate metallic waste
from dry waste economically and efficiently without the need
to import high end machines .
2. The principles we used in these project are electro magnet and
eddy current applications.

7. 1. First the dry waste would be passed
through an elevated cylinder which
has an electromagnet along its axis.
2. The advantage of this model is that
the waste can be continuously fed
from the upper end and will roll
down by the action of gravity .To
smoothen this process we can use
rollers along the base or a conveyer
belt which is totally optional.
3. This can replace the use of magnetic
cranes which are slow.
4. Once the waste is free from
magnetic metals it will be moved to
the next stage .
5. Switching off the electromagnet
,the magnetic metals will slide
down and can be collected
separately.

8.  The non-magnetic waste would
then be passed through a
crusher to reduce the size of the
particles .
 This will be then sent over a
conveyer belt in which at the end
there will be a magnetic rotor or
eddy current motor.
 Coupled with standard magnetic
separator, ferrous metals,
including that of small size, can
also be separated, thus
delivering optimal quality of
separation.

9.  This method is based on the use of a magnetic rotor with alternating
polarity, spinning rapidly inside a non-metallic drum driven by a
conveyor belt. As non-ferrous metals pass over the drum, the
alternating magnetic field creates eddy currents in the non-ferrous
metal particles repelling the material away from the conveyor ,while
the inert materials fall by gravity along the normal path in another
container.
 Eddy current separators may use a rotating drum with permanent
magnets, or may use an electromagnet depending on the need.
 Uses -Separate aluminium & other non-ferrous metals from scrap
residue and other recyclables.