A team of chemical engineers at the University of Washington, working with a pair of colleagues from the U.S. Naval Academy, has identified a type of bacteria that eats low concentrations of methane. The study is reported in Proceedings of the National Academy of Sciences,.
. And while most of the attention has been on carbon dioxide, methane is also a problem. Though the amount of methane emitted into the atmosphere is much lower than CO, it is still considered to be a big problem because it warms the planet at a rate 85 times higher. Methane has in recent years also come to be a bigger problem because it is released during fracking.
Current bacterial types are typically effective at removing levels of methane only when its concentration is 5,000 parts per million. Testing of M. buryatense shows it is effective at removing methane at concentrations as low as 500 parts per million—and it does so at higher rates.when it eats methane, a big plus. Preliminary results have shown that deployment of M. buryatense reactors can be scaled relatively easily.
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