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MYTHBUSTERS

ALP GRADE 9 SCIENCE. WOSS
by

Jasmine Yu

on 24 September 2015

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Transcript of MYTHBUSTERS

Products are used by consumers, then disposed in the recycling bins. The content of these bins are then collected by trucks that transport it to the recycling facility.
The Sorting Process
Step 1
Step 2
At the recycling facility, the items that are to be sorted move through large conveyer belts of a large machine called the single stream recycling facility. The purpose of these conveyer belts is to allow the machine to properly sort out the materials.
Step 3
The items are sorted into 5 categories:
garbage (moved to garbage treatment facility)
paper
glass
metals
plastic
First
High powered fans blast jets of air to suspend lighter materials (paper, metals, plastic), leaving the heavier glass to fall the the bottom)
Second
A steep conveyer bounces the items across a series of rubber wheels. This allows the paper products in the pile to continue their journey upwards. This causes the heavier plastics and metals to drop down to a conveyer belt below.
Does garbage that is misplaced in the recycling bin have to be sorted by hand?
Third
Powerful electromagnets separate the metals from the plastics. All items should now be in groups.
Fourth
However, the machine cannot sort the items any further and require the items to be sorted by hand (separating garbage from recyclable plastic)
Fifth
The different groups of items (excluding the garbage) are pressed into large identical cubes (bales) for transport.
Sixth
The large cubes of recyclable items can be transported to different facilities to be processed (items are sold), while garbage is sent to be properly disposed of.
Mythbusters
Conclusion
Yes, misplaced items in the recycling do require workers to sort them by hand. This is
CONFIRMED
.

Impacts
ON WORKERS
Many people do not realize that sorting through someone else's garbage is very tedious and the stench of the waste items can be quite strong.
ON THE ENVIRONMENT
By recycling items, waste that is put into landfills is reduced.
Recycling items also puts less stress on the environment, as we are reusing the pre-extracted resources (ex. paper - less trees are cut down as a result).
ON INDUSTRIES
Positive impact on industries/companies that use recycled materials, as it sways consumers to purchase their items (many consumers look to be more environmentally friendly).
PUBLIC ADVISORY
We advise to put the correct items in the recycling. Put yourselves in the workers' shoes - the work of sorting out everyone's waste is tedious. Lessen their workload by taking a few minutes to correctly sort out your waste.
DID YOU KNOW THAT
If you recycle a stack of newspapers that is 1 meter tall, you can save 1 tree from being cut down?
DID YOU KNOW THAT
93% of Halton residents participate in the recycling program?
DID YOU KNOW
That a bale of pop cans weigh over 1000kg?
This is classified as a single-stream recycling collection (all materials are collected together).
It is a popular method because it is easier and more convenient for the consumer.
However, this results in a 22%-27% loss in weight (because of contamination - ex. oil stained paper and cardboard cannot be used.
Full transcript