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<div>How does the algae "sequester" the CO2 if it's then
used for animal feed?</div>
<div><br></div>
<div>CO2 sequestration must be long-term. It sounds a bit like tree
plantation companies suggesting the same thing, but with a plan to
harvest the trees for paper. Of course, in the harvesting and
processing of the trees, the carbon is lost, except for the small
amount that's still in the paper. When this is used it will either be
recycled or, more likely, incinerated (whereby all the carbon is back
in the atmosphere) or landfilled (whereby the carbon will be broken
down anaerobically, thus generating methane, 11 - 25 times more
power as a GHG.</div>
<div><br></div>
<div>tim keating</div>
<div><br></div>
<div><br></div>
<div>At 9:04 PM +1100 2/23/11, Lance Collins wrote:</div>
<blockquote type="cite" cite><font size="+1"><b>Recently the list
wandered off into space exploration. Assuming some on this
list are interested in 'green' beyond building I'm using this as an
excuse to go a bit off-topic and draw your attention to the exciting
topic of using algae for bio-sequestration of coal-fired power station
emissions.<br>
<br>
I belong to an Australian group called the Alternative Technology
Association.and at our February branch meeting in Melbourne we heard a
presentation from a company called MBD Energy ( www.mbdenergy.com).
Don't go there until you look at the presentation slides (link
below).<br>
<br>
MBD is a small company by US standards and there are companies in the
USA spending billions on algae. According to MBD their
emphasis is more on GM algae for fuel production whereas MBD think the
more important products are food for people, animals and fish farms.
Recently on a visit to China the speaker said the Chinese were not
interested in oil but in food for aqua-culture. Has MBD been
able to supply they were offered an immediate order for a million tons
a year.<br>
<br>
Apologies for going off-topic<br>
<br>
Lance<br>
<br>
<br>
</b></font><font size="+2"><b>Topic: CO2 to energy: The Power of
Algae</b></font><br>
<font size="+2"><b></b></font></blockquote>
<blockquote type="cite" cite><b>Convenor: Peter Wonfor<br>
Guest Speaker: Tony St. Clair</b> (Agri Business manager at MBD Energy
Ltd.)<br>
<br>
<b>meeting description:</b> The Sustainable Production of Fuel and
Food Using Algae to Capture and Convert CO2 Emissions.<br>
<br>
Tony St. Clair treated us to an insight into the vast potential of
algae not only to provide oil, eminently suitable for biodiesel
production and high quality protein meal for animal feed, but also for
significantly reducing the greenhouse gas emissions from industrial
plants including fossil fuel power stations. A win-all-round scenario
all as a result of the photosynthesis power of algae.<br>
<br>
Tony described the range of algae strains and their preferred
environments that are currently available and the processes by which
the desired results are achieved. He also outlined the exceptional
efficiency of algae as a means of Biological Carbon Capture and
Storage for CO2 and the production of oil.<br>
<br>
We also heard about the success of pilot plants and the status of 1Ha
(10,000 m2) proof-of-concept plants located at coal-fired power
stations.<br>
<br>
<b>Discussion:</b> This presentation generated a lively and spirited
discussion both during and after the session. A lot of the discussion
centred on the ultimate ěCapture and Storageî outcome of the
technology. One strand of the argument pointed out that many of the
products finally re-release their CO2 emissions into the atmosphere.
In this sense, the process does not capture the emissions in the long
term. The other strand of the argument pointed out that the products
still serve the legitimate role of reducing emissions that would
otherwise have been generated twice over.<br>
<br>
This was a very interesting and stimulating session, with some good
spirited discussion.<br>
<br>
<b>Presentation:<br>
</b>Click
http://www.ata.org.au/wp-content/uploads/sustainable_algae_production<span
></span>_presentation.pdf.pdf for Tonyís presentation slides<br>
(the double pdf is not an error).<br>
<br>
</blockquote>
<blockquote type="cite" cite><br>
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<div><br></div>
<div><br></div>
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