Intro to Ultrasound

SonicPure’s technology uses high-frequency sound waves—completely inaudible to humans and animals—to create microscopic pressure fluctuations in the water. These pressure waves travel through the water and target algae cells, causing them to oscillate at their resonant frequency.
This resonance weakens the algae's internal structure, damages gas vesicles (which control buoyancy), and disrupts their ability to photosynthesize and reproduce. As a result, the algae sinks, starves, and dies—without harming fish, plants, or the surrounding ecosystem. It’s a non-invasive, chemical-free approach that leverages physics to restore balance to your water, 24/7.

Ultrasound: Tuned to Kill

Learn how ultrasonic technology is leading to breakthroughs in the treatment of algae and biofilm in water.

Ultrasound exists across a broad spectrum, and not all frequencies are safe—or smart—for water treatment. High-powered ultrasound, for example, can cause cavitation: microscopic bubbles that violently collapse, generating extreme heat and pressure. While that may sound cool, it’s lethal to everything in its path—not just algae.

SonicPure takes a different approach: it uses specific ultrasonic frequencies to which algae are highly sensitive. When exposed, their internal structures vibrate, disrupting buoyancy and reproduction. As a result, they sink and die—without chemicals or side effects.

Algae are surprisingly sensitive to specific ultrasonic frequencies. When exposed to the right sound waves, their internal structures begin to vibrate, disrupting buoyancy and reproductive function. The result? They sink and die—without chemicals or collateral damage.

The idea of using sound to fight algae actually began by accident. Legend has it that, over a century ago, gunfire near a stagnant, algae-covered waterway mysteriously cleared the bloom. It sparked a question that took generations of research to fully answer: Can targeted sound really clean water?
Yes—but only when tuned correctly.
Beyond algae, ultrasonic waves also disrupt anaerobic bacteria that form biofilm—a sticky layer that fuels Zebra Mussel infestations. By preventing this foundation from forming, ultrasound doesn’t just clean water—it cuts the problem off at the source.

Perfecting the Pulse

Ultrasound operates by producing frequencies that match the natural resonant frequency of algae cells—the specific vibration rate at which their internal structures begin to break down. Just like an opera singer can shatter a wine glass, ultrasonic sound waves can create internal resonance within algae, disrupting their vital functions.

In blue-green algae, this resonance collapses gas vesicles that control buoyancy, causing the cells to sink below the photic zone where they can no longer photosynthesize—effectively starving them. In green algae, ultrasound disrupts the cellular membrane itself, leading to a gradual breakdown over 3–4 weeks.

But to make ultrasound viable for widespread algae and biofilm control, two core challenges had to be solved:

  1. Identifying the precise frequencies effective across many species of algae and biofilm;
  2. Delivering those frequencies at the right range and intensity to achieve targeted results.

With over a million known species of algae and biofilm, a one-size-fits-all solution doesn’t work. Early ultrasonic systems relied on just a few frequencies. Today’s leading technology—thanks to pioneering work by George Hutchinson, the father of modern ultrasonic algae treatment—employs over 4,000 carefully tuned frequencies.

Each frequency plays a specific role: some rupture gas vesicles in blue-green algae, while others interfere with cell wall integrity or reproductive processes. In many cases, effects begin within 24 hours of treatment.

For ultrasonic treatment to be effective, proximity matters. The sound must be introduced within a specific range—typically between 70 and 400 meters—depending on the target organism and environment.

Creating an ultrasonic process for repeatable results

SonicPure Is Here to Help

Algae won’t solve itself—but we can. SonicPure offers proven solutions to eliminate algae from your wastewater treatment systems. Explore our case studies and resources to see our results in action, and contact us anytime for expert support.