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| Science & Technology |
| Hydrogen from wastewater (a different version of yesterday's article) |
| 2007-11-14 |
| This is the National Science Version of the AFP article from yesterday. ------------ By adding a few modifications to their successful wastewater fuel cell, researchers have coaxed common bacteria to produce hydrogen in a new, efficient way...By tweaking their design, improving conditions for the bacteria, and adding a small jolt of electricity, they increased the hydrogen yield to a new record for this type of system. "We achieved the highest hydrogen yields ever obtained with this approach from different sources of organic matter, such as yields [I think this means: Hydrogen atoms in the free product stream divided by hydrogen atoms in the solution] of 91 percent using vinegar (acetic acid) and 68 percent using cellulose," said Logan. -------- Assuming this scales up well, a number of municipal sewage systems should be able to use it within a few years for at least some of their treatment. Also, for the environmentalists, the CO2 emitted seems fairly easy to concentrate although sequestration is a whole different matter. |
| Posted by:mhw |
| #3 DRUDGEREPORT > UNO GROUP WARNS GLOBAL TEMPS WILL RISE SIX DEGRESS IN NEXT 25 YEARS - IFF NO CHANGE! SSSSSHHHHHHH, IOW the Earth[Gaia] = Sun[Sol] is gonna blow, as nuthin can explain an effective/de facto six degree rise except the Sun. |
| Posted by: JosephMendiola 2007-11-14 21:26 |
| #2 Hydrogen production is great an all that, but what will truly be a breakthrough is hydrogen STORAGE. |
| Posted by: Valentine 2007-11-14 18:15 |
| #1 There is a lot going on in the world of hydrogen production. All of these efforts, often from completely different vectors, are a testament to mankind's ingenuity and creativity. May the best solution / set of solutions win. |
| Posted by: Whiskey Mike 2007-11-14 09:59 |