A CELSS instance must be capable of supporting 1 or more humans indefinitely. Humans are a special case of
animal. In any human designed ecosystem, humans are the top of the food chain. Here are the inputs that we have to work with:
| INPUTS |
kg/person/day |
|
| Oxygen |
0.83
|
| Dry Food |
0.62
|
| Water in Food |
1.15
|
| Food Preparation Water |
0.79
|
| Drinking Water |
1.61
|
| Oral Hygiene Water |
0.36
|
| Hand and Face Wash Water |
1.81
|
| Shower Water |
5.44
|
| Clothes Wash Water |
12.47
|
| Dish Wash Water |
5.44
|
| Urinal/Comode Flush Water |
0.49
|
| Total: |
31.0
|
|
| *Chemical Composition |
% |
|
| Carbon Dioxide |
9.0-9.7
|
| Oxygen |
3.5-3.9
|
| Methane |
3.1-7.2
|
| Hydrogen |
12.0-20.9
|
| Nitrogen |
59.0-70.0
|
| Hydrogen Sulfide |
0.0002-0.0003
|
|
|
| OUTPUTS |
kg/person/day |
|
| Carbon Dioxide |
1.0
|
| Feces Solids |
0.0205-0.03
|
| Feces Water |
0.075-0.111
|
| Water from Respiration and Perspiration |
1.80-2.48
|
| Urine |
1.21-2.05
|
| Hygiene Water |
5.4-5.5
|
| Urine Solids |
0.059
|
| Sweat Solids |
0.016-0.02
|
| Clothes Wash Water |
12.5
|
| Dish Wash Water |
5.4
|
| Urinal and Commode Flush Water |
0.494
|
| Flatus* |
0.1-2.8
|
|
|