Photobiological Water Splitting
Biological hydrogen can be produced in an algae bioreactor. In the late 1990s it was discovered that if the algae are deprived of sulfur it will switch from the production of oxygen, i.e. normal photosynthesis, to the production of hydrogen. It seems that the production is now economically feasible by surpassing the 7–10 percent energy efficiency (the conversion of sunlight into hydrogen) barrier. with a hydrogen production rate of 10-12 ml per liter culture per hour.
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Famous quotes containing the words water and/or splitting:
“It is with artworks as it is with wine: it is much better when we do not need either one, when we stick with water, and when out of our own inner fire, the inner sweetness of our own soul, we turn the water over and over again into wine ourselves.”
—Friedrich Nietzsche (1844–1900)
“Verily, chemistry is not a splitting of hairs when you have got half a dozen raw Irishmen in the laboratory.”
—Henry David Thoreau (1817–1862)