Environment & Energy
Related: About this forumDeep-sea bacteria could help neutralize greenhouse gas, researchers find
https://ufhealth.org/news/2015/deep-sea-bacteria-could-help-neutralize-greenhouse-gas-researchers-findPublished: Oct 22, 2015 By: Doug Bennett
[font size=3]A type of bacteria plucked from the bottom of the ocean could be put to work neutralizing large amounts of industrial carbon dioxide in the Earths atmosphere, a group of University of Florida researchers has found.
Carbon dioxide, a major contributor to the buildup of atmospheric greenhouse gases, can be captured and neutralized in a process known as sequestration. Most atmospheric carbon dioxide is produced from fossil fuel combustion, a waste known as flue gas. But converting the carbon dioxide into a harmless compound requires a durable, heat-tolerant enzyme. Thats where the bacterium studied by UF Health researchers comes into play. The bacterium Thiomicrospira crunogena produces carbonic anhydrase, an enzyme that helps remove carbon dioxide in organisms.
So what makes the deep-sea bacterium so attractive? It lives near hydrothermal vents, so the enzyme it produces is accustomed to high temperatures. Thats exactly whats needed for the enzyme to work during the process of reducing industrial carbon dioxide, said Robert McKenna, Ph.D., a professor of biochemistry and molecular biology in the UF College of Medicine, a part of UF Health.
This little critter has evolved to deal with those extreme temperature and pressure problems. It has already adapted to some of the conditions it would face in an industrial setting, he said.
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mahina
(17,622 posts)Our reefs here are dying, and everybody else in the water along with them. Heartbreaking, silent.
OKIsItJustMe
(19,937 posts)NickB79
(19,224 posts)Have vats of these bacteria in solution, and percolate flue gases through the water in a similar fashion to hot smoker vents at the bottom of the ocean?
Here's a crazy counter-idea: stop burning coal in the first place.
This sounds like another proposal to keep burning as much coal for as long as humanly possible.
Nihil
(13,508 posts)> This sounds like another proposal to keep burning as much coal for as long as humanly possible.
Step 1: Keeping burning coal
Step 2: ?
Step 3: Profit
They just keep substituting more and more outlandish ideas for step 2.
OKIsItJustMe
(19,937 posts)In an industrial setting, the UF researchers believe the carbonic anhydrase could be captured this way: The carbonic anhydrase would be immobilized with solvent inside a reactor vessel that serves as a large purification column. Flue gas would be passed through the solvent, with the carbonic anhydrase converting the carbon dioxide into bicarbonate.
While carbonic anhydrases ability to neutralize carbon dioxide has been widely studied by McKenna and other scientists around the world for some time, finding the best enzyme and putting it to work in an efficient and affordable carbon sequestration system has been challenging. Still, McKenna said he is encouraged by the prospect of discoveries that could ultimately benefit the planet.
NickB79
(19,224 posts)I still stand by my initial statement: just stop using coal in the first place.
OKIsItJustMe
(19,937 posts)If youre burning something (coal, oil, natural gas, wood
) youre almost surely producing CO₂.