Ultrasound cleans polluted water, makes catfish tastier

From Clean Technica:

One solution to the world’s water pollution problems could be something you can’t taste, touch, see, smell, or hear. Especially hear. Ultrasound, the range of frequencies beyond the limits of human hearing, is starting to emerge as an effective water treatment that is more sustainable than chemical dosing. Researchers are discovering that ultrasound performs well on algae, and that’s only the beginning. Ultrasound can remove a variety of pollutants in water, including those that affect the taste of America’s favorite fish, the catfish.

Ultrasound and Algae

For a number of years now, companies like LG Sound have been promoting ultrasound as a sustainable, energy efficient, chemical-free way to reduce and manage algae in stored water settings, from ornamental ponds up to large industrial water storage facilities. The right frequency simply breaks up the cellular structure of the algae without harming other aquatic life. In practice, it’s somewhat more complicated. According to Duddy Heviandi Oyib, special projects manager and chief biologist of LG Sound, responses to ultrasound depend on the unique properties of each body of water. That includes the water’s current condition in terms of pollutants, as well as its size and depth. Still, the results are impressive.

Find out more about the effects of ultrasound on catfish, wastewater and other pollutants by clicking here.

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