Saturday, April 24, 2010

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Learning from human lungs to sequester carbon Biomimicry

The study of how the lungs work of man is an inspiration to move source technologies that remove carbon dioxide from the plant to prevent this greenhouse gas to reach our atmosphere and warm the planet. Our lungs have three main adjustments from which they derive their efficacy in removing CO2
1-a super-thin membrane that allows the CO2 to travel through and out quickly (how thin? About one-millionth of the interval at the end of this sentence)
2-a huge area (if deployed the exchange surface of our lungs would be 70 times the surface area of \u200b\u200bthe body-about the size of a golf ball in flight)
3-translators specialty chemicals, namely carbonic anhydrase that can remove CO2 from our bloodstream at a speed thousands of times greater than would be possible without it. In tests done by artificial Carbozyme Inc. filters which are based on the operation of our lungs removed 90% of CO2 through stacks of chimneys. At the same time other technologies based on the enzyme carbonic anhydrase found in animals such as molluscs, have managed to transform CO2 into limestone that can be accumulated or used as building material.

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