This ppt contains some of the techniques by which we can obtain energy which is usually getting wasted.

1. BY:
SHIVA KRISHNA. K

2. Garbage which causes pollution

3. if it continues we will find
dumping yards every where
other than houses.

4. o There is a remedy through which we can
prevent that situation and at the same time
we can save our money too.
o The remedy for that situation is
reusing the wastes through
which we can make use of those
wastes and thus we can be a part of making
this world clean.

5.  Especially in our country we find a lot of
power cuts during summer season , because
of unsufficient power production.
 We will also observe always there is a rise in
the cost of electricity.
 By using the modern technique of reusing of
wastes, we can even produce electricity.
 By these methods we can produce fuel ,which
is eco friendly I,e, there would be no harm to
environment.

6. There are many techniques through which we
can reuse wastes, some of them are:
 Gasification
 Thermal depolymerisation(Pyrolysis)
 Plasma arc gasification
 Anaerobic digestion
 Mechanical biological treatment

7. Don’t worry about plastic
and rubber ?
The main disadvantage of polymers are these are not degradable.
Even though polymers take many years to get degredable,there is
a process called pyrolysis , through which we can convert
polymers to useful compounds in very short period.this process follows
polymers
monomers
fuel
In pyrolysis we heat polymers at 350c in
the absence of oxygen,thus polymers are
converted to monomers on further heating
monomers get splitted and a kind of
vapour is produced which on condensation
gives fuel

8. Electricity from organic wastes :-
Organic wastes like leaves,animal fecus,and dead
animals are thrown in a pit.after some months due to
the action of organisms methane is produced.this gas
is used for domestic purposes and also to generate
electricity

9. Using this technique not only save money but
also provide a lot of employment in those
processing sector

10. Active participation of our state in
energy from wastes mission:-
Recently our state government
also supported this ENERGY
FROM WASTES concept by
permitting a swedish company
which wants to establish a
plant which produces power
from garbage. Nearly 34mv of
power is generated for every
1.5k tonnes of garbage,and the
trucks used for collecting the
garbage are run by the fuel
produced by the garbage.thus
this costs cheap