LG-Sound-LogoLG Sonic® products provide an environmentally friendly solution to control algae in lakes, drinking water reservoirs, and other applications by making use of ultrasound technology.

Furthermore, our continuous water quality monitoring systems can move our customers towards more effective water quality management.


Why to Choose an Ultrasonic Solution

  • To prevent the growth of new algae
  • To eliminate existing algae
  • To have a chemical-free solution
  • To have a safe solution for fish, plants, and other aquatic life
  • To treat large water surfaces, such as lakes and reservoirs
  • To avoid damage to industrial systems, for example, to filters in treatment plants
  • To have solution that requires little maintenance

A Specialized Solution for Your Application

LG Sonic® products are proven to be effective in monitoring and controlling algae in a wide range of applications.


Control algae and improve the water quality in large water surfaces


Control algae in your pond without the use of chemicals

image005Drinking water reservoirs

Control and prevent growth of cyanobacteria

image006Irrigation reservoirs

Control algae growth and prevent clogging of pumps, filters and sprinklers

image007Water treatment plants

Control suspended and filamentous algae without killing beneficial bacteria

image008Cooling towers

Lower algae, biofilm formation, bacterial counts, and chemical consumption

image009Golf course ponds

Eliminate algae and increase the aesthetic appearance of the golf course

How does an ultrasonic alga control work?

Collapse of gas vesicles Blue-green algae are capable of travelling through the water column vertically due to their possession of gas vesicles. The ultrasound from the LG Sonic ruptures these vesicles, preventing the algae from rising to the surface and absorbing light for their photosynthesis. Creating a sound barrier Ultrasound from the right frequencies creates a sound barrier in the top layer of the water, reflecting on objects with a different density than water. This affects the buoyancy of many types of algae and prevents algae from floating up to the surface, thus dying by lack of light. Damage of tonoplast As an effect of ultrasound, the tonoplast of green algae can rupture, releasing the contents of the vacuole to the inner cell. Besides this, the adhesion of the cell membrane and the cell wall can be damaged. Prevent bacterial adherence In an unstable environment bacteria adhere to a surface, creating a biofilm. LG Sonic devices create a pressure area around a surface,


LG Sonic e-line

image012Advanced treatment against algae

  • Chameleon Technology™ to change the ultrasonic program according the type of algae
  • Possible to treat multiple tanks or water surfaces with curves with one e-box
  • Integrated Aquawiper™ for minimal maintenance


image014Combines online water quality monitoring and ultrasound technology

  • State-of-the-art treatment against algae in lakes, ponds and drinking water reservoirs
  • Complete sensor package to continuously measure the water quality
  • Operates on solar energy, all year round in any country
  • Integrated Aquawiper™ for minimal maintenance