Table 1.

Masses of crew-generated wastes that could be resources for synthetic biology applications.

wasteunit mass produced [42] (kg per crew per day)mass produced, six outbound to Mars (kg)mass produced, six living on Mars (kg)mass produced, four outbound to Moon (kg)mass produced, four living on Moon (kg)
carbon dioxide
⇒ carbon content
⇒ oxygen content
1
0.273
0.727
1260
344
916
2976
812
2164
14
3.82
10.18
720
196
524
urine water
⇒ nitrogen content (ammoniacal) [43]
1.5
0.012
1890
15
4464
36
21
0.17
1080
9
non-recycled water (assuming recapture)
⇒ hydrogen content
⇒ oxygen content
2.37

0.266
2.104
2986

335
2651
7053

791
6262
33.18

3.72
29.46
1706

191
1515