Ultrasound technology for algae control

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ID
147537
Uploaded by
WIPO GREEN Admin
Type
Technology
Source
User uploads
Published
2022/10/15
Updated
2022/11/22
Email Owner
No Website
LG Sonic
Warmer temperatures are exacerbating algal blooms, allowing them to grow thicker and float to the surface. Further blooming is promoted as the algae absorbs sunlight at the water surface. LG Sonic have developed a chemical-free algae treatment technology using low-power ultrasound. Ultrasonic waves are emitted in the top water layer from a device. This generates a constant pressure cycle around the algal cells. This pressure restricts the algae’s movements, blocking its access both to sunlight at the water’s surface and nutrients at the bottom of the water column. Deprived of these inputs, algae sink to the bottom and decompose naturally without releasing toxins. The technology has been applied in more than 50 countries.

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