Celestial Colony is a waste water filtration and fertilization system, housed on an interstellar colony. Waste water is treated by pumping it through "algae facets" in a geodesic dome which filter out nutrients such as phosphate, nitrate, and ammonia as well as carbon dioxide in the air. Once the algae has collected the nutrients it can be removed from the facets and used as fertilizer for plants growing within the dome. The filtered water can be used in grey water applications or further processed into potable water through evaporation filtration.
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