Subsurface Eco-ag Facility (SseAF)
This facility is designed to utilise all biological waste products from an analogue Mars settlement in the production of terra preta type soil valuable for para terraformation, as well as a variety of fruits, vegetables, and fish for human consumption. For ecosystem robustness and to avoid failure of life-sustaining systems due to mechanical malfunctions, all parts of the system requiring mechanical manipulation of materials will be manually operated.
Structure and function
This system is designed to be constructed from recycled intermodal containers to maximise structural integrity and minimise construction cost and to ensure ease of future expansion.
Below is a theoretical arrangement, and a selection of possible module use cases.