this is my first upload on slideshare if u guyzzz like it i will uplaod more

1. Recycling
PRESENTED BY-
Sakshi Jain

2. Introduction
 Convert (waste) into reusable material.
 Return (material) to previous stage in
 cyclic process.
 Processing used material into new product.
 Reduce energy usage ,reduce air & water
 pollution, lower emission of green house
 gases.
 Recyclable material :-glass, paper ,metal
 and electronics

3.  Recycling
 :-creating original products again.eg:-
 office paper to office paper.
 Not cost effective hence
 reusing
 is predominantly
 made.
 Getting salvage
 :-certain material with intrinsic
 value are extracted.
 eg :- lead – car battery ,gold
 from computers.

4. History
Recorded in 400 B.C. by Plato.
Archeological study stated scarce availability of
raw materials made them reuse it.
Europe :Pre industrial times:-evidence and bronze
being reused.
Britain :- dust and ash collected from coal burning
was used as base material for brick making.

5. Government mandated
demand for companies
Forced to include recycling in their
operation.
 Minimum recycling content
mandates .
 Utilization rates.
 Recycled product labeling

6. process
o Collection.
 Drop off centers.
 Buy back centers.
 Curbside collection.
o Sorting.
 cleaned ,reprocessed
into
 new materials.

7. Common recyclables
CONCRETE AGGREGATE.
 put in crushing machine with
 asphalt , brick, dirt and rocks.
 Used as gravel for new
 construction.
 If free of contaminants even used
 for new concrete creation

8. batteries
Ordinary batteries:-
 Since toxic content
available was hard to
handle.
Lead acid batteries:-
 recycling rate 90%.
 Contain 80% of
recycled material

9. Biodegradable waste
Recycled by breaking down waste material
by aerobic bacteria.
Can be done in house hold scale also.
Municipal house collection programs.

10. FERROUS METALS AND NON
FERROUS METALS
Steel :- Aluminum:-
Any grade was most efficient and
recycled into top widely-recycled
quality new model . material
Recycling
aluminium saves
95% of the energy
cost of processing
new aluminium.

11. paper
Recycled by combining it with new pulp.
Quality decreases with each time.
Paper coated with plastic, aluminium
foil ,wax are not recyclable .pasted or
gummed paper not recyclable.

12. Environmental effects of recycling
MaterialEnergy SavingsAir Pollution Savings
Aluminium 95% 95%
Cardboard 24% —
Glass 5-30% 20%
Paper 40% 73%
Plastics 70% —
Steel 60% —

13. conclusion
Technical university of Denmark.
83% of cases recycling is most efficient way of
disposal of house hold wastes.
Without recycling.
 Zinc would run out in 2037.
 Indium and hafnium would run out in 2017
 Terbium gone before 2012
Reduce carbon emission by 90%.
Saves energy ,Saves money ,saves trees.