Saturday, September 01, 2007

Auroville and spirulina

Spirulina: Case Study in Susustianability By mana Even if Auroville is going to grow hugely in number of habitants , there will be no problem at all in producing enough spi within the community to supply this "nutrient rich super food" on a daily basis for all, plus enough to meet the ...
Already in the 1970s, Aurovilians Bob and Deborah Lawlor started a small scale algae farm in Auroville's Success community with a mixture of green algae, mostly chlorella and scenedesmus. In their attempts at growing spi, they found that after a few weeks indigenous varieties of the chlorella species outgrew and replaced the original strain of spi. Although their project was very basic and operated with simple means, it was one of the first experimental spi farms worldwide, and even now is considered to have been of great value. So much so, that it is mentioned in the books written by Ripley D. Fox (the spi guru for the last three decades)...
Big Oxygen Producer: Forests help absorb atmospheric carbon dioxide. Trees are the best land plants for fixing carbon, from 1 to 4 tons per hectare per year. Spirulina is even more efficient. In the California desert, spirulina fixes 6.3 tons of carbon per hectare per year. It produces 16.8 tons of oxygen...
Aurospirullina uses PVs to pump all his water needs and uses solar energy for the bulk of the drying operation. Aurospirullina uses electricity for drying (after sun drying you still need to get rest of the moisture out) and grinding it to powder. This energy use is very small. Overall the Spirulina Project is one of the closest Sustainable projects in Auroville. As our bioregion continues to drain its aquifers we will see more salt water intrusion. This is a major threat but not due to the Spirulina operation. Posted by mana at 1:11 AM

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