Difference between revisions of "User:Joep/Disposable land"
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The bags would be made of [http://en.wikipedia.org/wiki/Polyethylene polyethylen] [[Image:Polyethylene.png|40px]] or [http://en.wikipedia.org/wiki/Polypropylene polypropylene] [[Image:Polypropylen.png|40px]] which is much stronger. The process is described [http://en.wikipedia.org/wiki/Vertical_form_fill_sealing_machine here]. | The bags would be made of [http://en.wikipedia.org/wiki/Polyethylene polyethylen] [[Image:Polyethylene.png|40px]] or [http://en.wikipedia.org/wiki/Polypropylene polypropylene] [[Image:Polypropylen.png|40px]] which is much stronger. The process is described [http://en.wikipedia.org/wiki/Vertical_form_fill_sealing_machine here]. | ||
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| + | A similar idea is here: http://www.geocities.com/vacoyecology/Bubble_ponds_fluke_boats.html. | ||
==Uses== | ==Uses== | ||
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===Solar collector=== | ===Solar collector=== | ||
| + | (See also [[Stirling engine]]) | ||
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===Huge pump=== | ===Huge pump=== | ||
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| + | ===Breakwater=== | ||
==Advantages== | ==Advantages== | ||
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* Polypropylene can be recycled easily. Because it's one big plastic structure, it's probably easy to take it out the water, compress it and bring it to a recycling company. | * Polypropylene can be recycled easily. Because it's one big plastic structure, it's probably easy to take it out the water, compress it and bring it to a recycling company. | ||
| + | [[Category:RequirementCost]] | ||
Latest revision as of 01:28, 23 February 2009
(work in progress)
The machines that make plastic bags for potato chips, etc. can easily be adapted to create a long string of bags filled with air. When these strings are sealed together, you get a floating air bed in any size at extremely low cost ($0.009 / sqft, 400$/acre).
The bags would be made of polyethylen 
or polypropylene 
which is much stronger. The process is described here.
A similar idea is here: http://www.geocities.com/vacoyecology/Bubble_ponds_fluke_boats.html.
Contents
Uses
As tubes
As land
Soil would make it expensive. If the bags are not completely filled with air, a couple of layers may damp small waves.
Solar collector
(See also Stirling engine)
Huge pump
Breakwater
Advantages
Price
Amtec has seal that costs about $5 / 100 m2, but we need twice that so it's about $100.000/km2, $400/acre, $0.009/sqft.
Breakwater
Acts as a breakwater, not sure how much this effect would be.
Proven technology
Disadvantages
Big waves
But easy to renew parts of the land.
Polutant
- Polyethylene
Biodegrading takes centuries, but according to Wikipedia Daniel Burd, a 16 year old Canadian discovered in May 2008 that Sphingomonas, a type of bacteria, can degrade over 40% of the weight of plastic bags in less than three months. "The applicability of this finding is still a matter for the future."
- Polypropylene can be recycled easily. Because it's one big plastic structure, it's probably easy to take it out the water, compress it and bring it to a recycling company.
