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Posted Wed May 29 2013: from PNAS, via RedOrbit:
New CO2 Removal Technique Produces Green Fuel, Offsets Ocean Acidification
A new technique to remove and store atmospheric carbon dioxide has been demonstrated by scientists at the Lawrence Livermore National Laboratory (LLNL). The new technique also generates carbon-negative hydrogen and produces alkalinity, which can be used to offset ocean acidification. At laboratory scale, the team demonstrated a system that uses the acidity normally produced in saline water electrolysis to accelerate silicate mineral dissolution. The system simultaneously produces hydrogen fuel and other gases. The electrolyte solution that results shows a significant elevation in hydroxide concentration that in turn proved strongly absorptive and retentive of atmospheric CO2. The findings of this study were published in a recent issue of PNAS. The carbonate and bicarbonate produced in the process could be used to mitigate ongoing ocean acidification, the researchers suggest, much like how an Alka Seltzer neutralizes excess acid in the stomach.
[Read more stories about: carbon sequestration, technological innovation, ocean acidification]
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'Doc Jim says:
Plop, plop, fizz, fizz, oh what a relief it might be if it scales up!

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