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What's the difference between a methane scrubber and an ammonia scrubber?

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Tennessean · 31-35, F
@SW-User it scrubs methane
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@SW-User Removes it from, say, a stack of an industrial facility.
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@SW-User Oh, it may well be, but "scrubbing"--in the contexts I've heard it used--typically refers to removing an undesired substance/set of substances from the emissions of some industrial plant/process. Looking at the sources of methane & ammonia, I wonder if it might also be desired in some large, commercial agricultural set-ups...
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@SW-User It would seem that "scrubbing" refers to cleaning or removal of an undesirable component (and may well have been put forward by PR people in industries with very dirty emissions lol).

Though many [i]are[/i] based in solutions, passing gases through/over solids to remove unwanted components is also referred to as "scrubbing". Cf., e.g., the Wikipedia article on CO2 scrubbing, which mentions some of these no-solution-based methods, and specifically states

[quote]Activated carboncan be used as a carbon dioxide scrubber. Air with high carbon dioxide content, such as air from fruit storage locations, can be blown through beds of activated carbon and the carbon dioxide will absorb onto the activated carbon.[/quote]

Others are also mentioned.
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