Reservoir Water - Ultrasound for Algae Control

Ultrasound for Algae Control

Overview

Ultrasonic algae control is a chemical‑free method for suppressing green algae and blue‑green algae in reservoirs, ponds, lakes, tanks and other water bodies. The technology uses precisely tuned ultrasonic sound waves to disrupt algae buoyancy and cellular processes, reducing growth and bloom formation.

How It Works

  • Devices float just below the water surface and emit continuous ultrasonic frequencies
  • These waves interfere with algae’s ability to regulate position in the water column, ultimately inhibiting growth
  • The system is line‑of‑sight, meaning sound waves travel straight and do not bend around corners or islands
  • Hard surfaces; concrete, large rocks—reflect the signal, which can help coverage but may also create shaded areas requiring additional units

Effectiveness & Coverage

  • Proven performance in a wide range of environments: reservoirs, golf courses, botanical gardens, marinas, power plants, and water treatment facilities.
  • Coverage varies by algae type:
    • Green algae: up to 70,000m2 per unit
    • Blue‑green algae: up to 500,000m2  per unit
  • Multiple units can be combined for large or complex water bodies.
  • Users report reductions in pH and total suspended solids (TSS) as algae levels decline.

Installation & Operation

  • Units operate 24/7 and require minimal maintenance.
  • Power consumption is low (under 18 watts), making them suitable for remote sites using solar PV.
  • Available in multiple sizes to match water body characteristics.
  • Additional units may be needed to cover blind spots created by islands or structural obstructions.

 Where Ultrasound Stands Out

Prevention Rather Than Cure

Ultrasound excels as a continuous, preventative technology. It stops algae establishing rather than reacting once a bloom has already formed. This makes it ideal for:

  • Irrigation reservoirs
  • Drinking‑water reservoirs
  • Large estates and parks
  • Golf courses
  • Industrial water bodies

Chemical‑Free and Low Maintenance

For sites wanting to avoid copper, hydrogen peroxide, or repeated manual dosing, ultrasound offers a set‑and‑forget alternative with minimal ecological impact.

Catchment‑Driven Problems

If nutrient loading is extreme, ultrasound will help suppress algae but won’t solve the underlying cause. Nutrient reduction remains essential.

Positioning Statement for Potential Users

Ultrasound is best framed as a long‑term, chemical‑free prevention system that controls and keeps algae suppressed. It complements, rather than replaces other tools, especially in high‑nutrient situations.

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