system
Given the following post, respond as if you're commenting on Reddit:
human
[Dune] What do the still suits do with feces?

Presumably the still suits turn all of a persons urine and sweat into drinkable water, and I imagine it would also extract water from feces, but what does it do to the rest of the waste matter?
gpt
The suit does "process" feces (and thankfully Herbert doesn't go into details) to extract the water. What it does with the desiccated remains is left as an exercise of imagination. Most likely it is possible to access wherever it is stored to empty and clean it out.