Salt-rejecting microchannels can be used to make seawater drinkable with the help of solar energy. These microchannels are made of a special material that allows water to pass through, but not salt molecules. The salt molecules are rejected and left behind, while the freshwater is collected. Solar energy is used to power a pump that draws the seawater into the microchannels and pushes it through the membrane. The freshwater is then collected and can be used for drinking and other activities.
A simple solar-powered method to desalinate seawater and make it drinkable could be used in emergency situations or on life rafts
. The method would use a solar-powered still that is made out of a plastic bag and a few materials from the environment. The still would be set up by filling the bag with seawater and placing it in direct sunlight. The sunlight would cause the water to evaporate, leaving behind salt and other impurities. The now-desalinated water would then condense on the surface of the bag and be collected. This method would be simple and effective with minimal cost.
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