Description of Challenge
Using salt water for agricutlure. Growing crops in arid and semi- arid conditions. It's a low energy alternative to fossil fuel powered de-salination and also provides an alternative to ground water extraction.A system that uses sea water to cool and humidify air over growing beds and to condense pure water to feed crops.
Solution
A fine spray of sea water is used to humidify and cool air entering a poly tunnel beyond which a filter excludes salt from the growing beds. The air is drawn through the tunnel by fans cooling the environment around the crops and when it strikes tubes filled with cold sea water condensation forms and pure fresh water that is fed back to the plants.
