Ultrasonic waves may soon play a surprising role in the future of water access. Engineers have found that high-frequency vibrations can interact with moisture-holding materials in unexpected ways. Their work hints at a technology that could enable rapid, repeatable water recovery using only a small amount of power.
A Faster Way to Harvest Atmospheric Moisture
Atmospheric water harvesting systems typically rely on sunlight or heat to evaporate moisture collected in sorbent materials. While effective, that process can take hours or even days, especially in dry regions. MIT researchers examined whether ultrasound — sound waves above the range of human hearing — could break the bonds holding water inside these sorbents much more quickly.
The team…
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