Plastic Water Bottles
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Plastic Water Bottles Paolo Agostinelli
description
A research on the pros and cons of plastic water bottles
Transcript of Plastic Water Bottles
Plastic Water Bottles Paolo Agostinelli
Why plastic?
• Cheap
• Flexible
• Durable
• Transparent
• Lightweight
• Chemical resistant*
* Not 100% true
http://urbancanteen.com/blog/
Type of plastics
• The bottle is made of PET
• The cap is made of PP
http://en.wikipedia.org/wiki/File:Plastic_Bottle_Cap.JPG
PET
• Polyethylene terephthalate
• Thermoplastic polymer
• Naturally colorless with high transparency
• Can be recycled
• Might yield endocrine disruptors
* http://ehp03.niehs.nih.gov/article/info%3Adoi%2F10.1289%2Fehp.0901253
PP
• Polypropylene
• Thermoplastic polymer
• Opaque
• Caps are produced by injection molding
• Can be recycled
• Chemicals can leech from plasticware*
* http://www.physorg.com/news145545554.html
Cap production
• fed into a heated barrel
• mixed
• forced into a mold cavity
• it cools and hardens
* http://ehp03.niehs.nih.gov/article/info%3Adoi%2F10.1289%2Fehp.0901253
Bottle production
• Usually a two steps method
• The preform is formed using a injection molding machine
• The preform is inflated into final shape using a stretch blow molding machine
• http://www.youtube.com/watch?v=xEgpS9HJhos
* http://ehp03.niehs.nih.gov/article/info%3Adoi%2F10.1289%2Fehp.0901253
Why plastic?
• Reduced amount of raw materials
• Less energy to transport
• a smaller carbon footprint to produce compared to metal and glass bottles
• Less packaging for protection
http://urbancanteen.com/blog/
A comparison
• Plastic water bottle
• Klean Kanteen Stainless Steel Bottle
• Glass Soda Bottle
Plastic Water Bottle
EMBODIED ENERGYEMBODIED ENERGY
Plastic 55g 5,504,950
Transportation 13,904 km 191,184
Disposal (Landfill) 4,950
Total 5,504,950 J
Watts 65,927 W
Source: http://www.wattzon.com
Soda Bottle
Source: http://www.wattzon.com
EMBODIED ENERGYEMBODIED ENERGY
Glass 305 g 6,710,000
Steel 1 g 43,700
Manufacturing 1,037,500
Transportation 13,904 km 1,063,679
Disposal (Landfill) 27,540
Total 7.818.740 J
Watts 102.806 W
Klean Kanteen
Source: http://www.wattzon.com
EMBODIED ENERGYEMBODIED ENERGY
Stainless Steel 227 g 9,911,160
PP 20g 2,100,000
Manufacturing 78,642,500
Transportation 13,904 km 857,895
Disposal (Landfill) 22,212
Total 90,675,872 J
Watts 2,901 W
The Business
• Bottle production account for 30% of production
• 13% of plastic bottles are actually recycled
• 1500 every second
• 38 billion water bottles a year in excess of $1 billion worth of plastic.
* http://ehp03.niehs.nih.gov/article/info%3Adoi%2F10.1289%2Fehp.0901253
The Business
• in 2009 consumption of bottled water for 100$ billion
• 1.5 million barrels of oil to produce
• Bottled water costs up to 1000 times than tap water
• Bottled-water business is half the size of the carbonated beverage industry
Ethos Water
On the water business
• The Story of Bottled Water
• Tapped the Movie
Recycling
• PET bottle collection and waste separation—waste logistics
• Production of clean bottle flakes—flake production
• Conversion of PET flakes to final products—flake processing
• http://www.youtube.com/watch?v=zyF9MxlcItw
Polli-Brick
