“Bubble” greenhouse proposed for remote, arid regions
DOI: 10.1063/PT.5.029068
SciDev.Net : A sealed greenhouse that uses evaporation and condensation to desalinate saltwater for irrigation is being developed by researchers in Australia. In the design the evaporation equipment is located outside the greenhouse structure. Air is bubbled through water-filled columns to increase the air–water interface and encourage evaporation. Although the novel humidification–dehumidification process requires more energy than other desalination methods, such as solar-powered reverse osmosis, its simplicity and small scale could make it useful in isolated areas where local people with little training could set it up and run it. In addition, such a sealed structure would provide a cool, humid environment, which promotes plant growth, and would protect crops from insects and disease.
