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CO2 scrubbing with lithium hydroxide produces water? #177

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pjf opened this issue Mar 9, 2015 · 1 comment · Fixed by #178
Closed

CO2 scrubbing with lithium hydroxide produces water? #177

pjf opened this issue Mar 9, 2015 · 1 comment · Fixed by #178

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@pjf
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pjf commented Mar 9, 2015

Technically, CO2 scrubbing with lithium hydroxide produces water:

2LiOH + CO2 → Li2CO3 + H2O

The TACLS scrubbers in RO use this reaction.

While it's true that lithium carbonate isn't very soluble in water, I can't find any record of crew drinking the water from the CO2 scrubber, because doing so would probably cause them to seriously chill out due to its pharmacological effects. I believe this is undesirable in manned space flight.

I'd suggest the scrubbers produce waste-water rather than water.
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pjf commented Mar 9, 2015

Ditto with production of potassium carbonate, but at least that's a food-safe chemical.

pjf added a commit to pjf/RealismOverhaul that referenced this issue Mar 9, 2015
@pjf
Fix TACLS scubbers and purifiers
fd1e345 
Note that 'true' in output resources means it's okay for that resource
to be thrown away. Reference:

https://github.com/taraniselsu/TacLifeSupport/blob/master/Source/TacGenericConverter.cs#L61-L64

This is backed up by the converters that come with TACLS itself.

This commit fixes the following:

- The air filter will no longer run in a fully oxygenated environment.
- Water splitters will no longer run in a fully oxygenated environment.
- Water purifiers will no longer vent water, but insist on keeping waste.
- CO2 scrubbers no longer fascinated with keeping waste, either.
- CO2 scrubbers produce WasteWater when appropriate, not Water. (Closes KSP-RO#177)
- Potassium superoxide scrubber now produces water, rather than requiring it.
- CO2 scrubbers will continue to run as long as CO2 is available. No
  more kerbonauts dying from CO2 exposure because the wastewater tank
  was full, or the cabin was fully oxygenated.
@pjf pjf mentioned this issue Mar 9, 2015
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@PhineasFreak PhineasFreak mentioned this issue Jul 20, 2016
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Fix TACLS scubbers and purifiers pjf/RealismOverhaul
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@pjf