[extropy-chat] A Grim Vision ...?
eugen at leitl.org
Fri Apr 13 12:12:53 UTC 2007
On Fri, Apr 13, 2007 at 07:37:37AM -0400, Robert Bradbury wrote:
> What people aren't generally aware of is that more ideal "natural"
> photosynthetic systems can be pushed to 6-8% efficiency in
> photobioreactors. So the solution for maximal output (either for food
There are advantages in controlled eutrophication of large bodies
of water, versus highly controlled environments.
> or fuel) is solar ponds using a mix of photosynthetic microorganisms.
> What you want is photosynthetic spirulina for food and photosynthetic
> yeast for alcohol. It is worth noting that something like a dozen
Some microalgae contain up to 50% of oil, which is suitable for biodiesel.
Most important: unlike ethanol, oil does not have to be destilled.
> different species of photosynthetic microorganisms have been sequenced
> and the information is sitting in NCBI or DOE databases. Constructing
> solar ponds has significantly lower technology inputs, investment
> requirements and bureaucracy and legal headaches compared with nuclear
> reactors. Also worth noting is that one can do it on land which may
> or will be unsuitable for natural agricultural production.
Or no land at all, shallow lagunes. The Salton Sea is an often cited
Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org
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