In older systems, wastewater is vented into space, and any solids are compressed and stored for removal upon landing. More modern systems expose solid waste to vacuum pressures to kill bacteria, which prevents odor problems and kills pathogens.
In older systems, wastewater is released into space, and any solids are compacted and stored for removal upon landing. More modern systems expose solid waste to vacuum pressures to eliminate bacteria, which prevents odor issues and eradicates pathogens.