Waste streams in a crewed space habitat II

Area of Science:

• Spacecraft Environmental Control and Life Support Systems (ECLSS)
• Waste Management in Closed Environments
• Human Physiology and Waste Production

Background:

• Previous compilations of waste stream generation rates and compositions for crewed space habitats exist.
• Existing data requires augmentation with new findings and data from diverse sources, including Soviet literature.
• Minor human waste streams were not comprehensively included in prior analyses.

Purpose of the Study:

• To update and expand the compilation of generation rates and chemical compositions of potential waste streams in crewed space habitats.
• To incorporate newly uncovered data, information from Soviet literature, and previously omitted minor human waste products.
• To provide a complete dataset for Environmental Control and Life Support System (ECLSS) design, including the latest parameters for Space Station Freedom.

Main Methods:

• Systematic review and augmentation of existing waste stream data.
• Inclusion of data from newly discovered sources and relevant Soviet scientific literature.
• Characterization of minor human waste streams such as saliva, flatus, hair, nails, skin secretions, tears, and semen.

Main Results:

• An updated and expanded compilation of waste stream generation rates and chemical compositions.
• Inclusion of data for previously unaddressed minor human waste streams.
• Latest information on ECLSS design parameters for Space Station Freedom is reproduced.

Conclusions:

• The updated compilation provides a more comprehensive dataset for waste management in crewed space habitats.
• The inclusion of minor waste streams enhances the completeness of data for ECLSS design.
• This research supports the development of robust and efficient life support systems for long-duration space missions.