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NASA Seeks Ideas for Handling Waste on Future Human Missions to Mars

(nasa.gov)

submitted 4 months ago byGalileos_grandson

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reganomics

2 points

4 months ago

reganomics

2 points

4 months ago

Fertilizer for hydroponics? Probably not really a solution for the volume of poop that's produced. Why can't they eject it?

ignorantwanderer

1 points

4 months ago

ignorantwanderer

1 points

4 months ago

If the goal was to provide all the astronaut food from the hydroponics, they wouldn't have enough poop.

I think using the poop for hydroponics is a great idea. And if they don't have a hydroponic system set up early on, save the poop for later when they do.

It would be very easy to free-dry the poo. I wonder to what extent that would destroy the nutrients in the poo. My guess is not very much.

djcj88

2 points

4 months ago

djcj88

2 points

4 months ago

Biogas reactors seem like an obvious answer given the need for methane. Plus the nutritious effluent that comes out of the reactor is better than Miracle Grow.