Vertical Farming Has Found Its Fatal Flaw

Re:Vertical Farming Has Found Its Fatal Flaw by Ekaros on Saturday December 31, 2022 @06:16PM (#34201729)

Doesn't ISS generate oxygen from water and water is essentially shipped in? Either as water or as food. In the end methane is vented to space. I wouldn't call system needing pretty major inputs a self-sufficient one.

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Re:Vertical Farming Has Found Its Fatal Flaw by farmaway on Sunday January 01, 2023 @12:48AM (#34203978)

You are correct:

>4. Sabatier reactor

>Inside this machine, a blast of roughly 750°F heat breaks the bonds inside CO₂, forcing it into its constituent elements. The carbon and oxygen combine with hydrogen from the station’s oxygen generating system to make H₂O and methane (CH₄), the latter of which vents into space.

https://www.popsci.com/how-iss-recycles-air-and-water/

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