History of Recycling
Recycling helps our environment stay clean.
An enormous progress has been made over the year because of the
They ordered paper, cans, cardboard and other materials to enter
into the blue bins.
Recycling has been around for thousands of years, and will continue
to have the same process over and over again.
People started to recycle as early as 400 b.c.
In the history of recycling, for the United States, the first city to
mandate recycling was Woodbury, New Jersey.
The 17 trees saved by recycling one ton
of paper can absorb a total of 250 pounds
of carbon dioxide out of the air each year.
The average American uses 650 pounds of
paper each year.
100 million tons of wood could be saved
each year if all that paper was recycled.
Americans use 2.5 million plastic bottles
About 80% of what Americans throw away
is recyclable yet our recycling rate is only
Where Do Recycled
The recycling truck
unloads materials. Materials are Materials are recovered
carried along a conveyor belt to from the recyclables using a two
a V screen separator. The V step process. First, giant magnets
screen separator divides out attract ferrous metal. These
newspaper, cardboard, and items are iron, tin and steel.
other paper items. The magnets remove
Heavier materials like ferrous metal products from the
plastic, metal and glass fall belt and puts them in a bin
through the separator to a where they can be prepared for
conveyor belt below. The a metal mill.
collected paper products are
bundled to get ready for
processing. Plastic, metal and
glass items continue their
Step 3 Step 4
Since aluminum products like
soda cans, are not magnetic, they By now paper, ferrous
continue along with the plastic metals and non magnetic
and glass recyclables towards a metals have been sorted
eddy current rotor. Eddy currents
create strong fields of energy
from the bunch. That
around non magnetic materials. leaves plastics and glass to
Now its time for physics to continue along the belt.
step in. The eddy current causes During the next step an
aluminum items to shoot away
from the other items on the belt
optical scanning system
and into a collection bin. recognizes plastic
materials and pushes
them off the belt into a
bin using a blast of air.
Step 5 Step 6
Now only glass remains on Here’s what happens to each
the belt. The heavier glass items material after it has been
reach the end of the belt and separated.
are collected in a bin. That PAPER: The paper is loaded into
completes the separating a machine that removes ink from
the paper. Paper degrades each
time it is recycled so it can’t always
be used to make new paper.
METAL: Using very high heat (up
to 2800 F) the metal becomes a
liquid. The liquid goes into molds
and becomes metal bars that can
be used for bridges, aluminum cans,
and much more.
PLASTIC: The number on the
plastic is sorted into different
groups. It is then turned into flakes
and melted down.
GLASS: The glass is crushed into
tiny pieces. It is then melted down
and is used for doorknobs, tile, and
even jewelry beads.
How does recycling
Recycling reduces the garbage placed in landfills, which helps the
environment by reducing the need for new landfills.
According to the Environmental Protection Agency, there are over
3,000 active landfills in the United States and over 10,000 old
Modern landfills are sealed tightly in an attempt to protect the
environment from contamination, they also inhibit degradation of
Items that consumers purchase because they are biodegradable and
therefore, are supposed to decay quickly, are taking decades to
decay when sealed off from air and water.
Papers, including newspapers, are a major filler of modern landfills.
If individuals would recycle all of their newspapers, they could
significantly prolong the use of each landfill, not to mention save
many trees from being cut down.
Help the world by
Read more: How Does Recycling Help
the Environment? | eHow.com