[Digestion] water column CO2 scrubbing

[Warren Weisman]

Just thinking out loud, is anyone familiar with any
experiments where rainwater runoff from a building(s)
is being used to scrub the CO2 from biogas? Seems like
the falling water could also drive a compressor. 

Make biogas when it's sunny, clean it and compress it
when it's raining. 






       
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