All videos

This is how sound waves cleaned up a Dutch lake

Toxic algae blooms are a serious and growing issue around the world. Dutch company LG Sonic has developed solar-powered ultrasound transmitters that prevent algae blooms using sound waves without harming fish and other wildlife. It is also equipped with sensors that provide water quality data to monitor, predict and control toxic algae blooms. Here's how it works.

Topics:
Food, Water and Clean Air
Share:

More on Food, Water and Clean Air
See all

How cities are turning water challenges into innovation opportunities

David Elliott

November 20, 2025

Data centres use vast amounts of water – here’s how we advance water circularity

About us

Engage with us

Quick links

Language editions

Privacy Policy & Terms of Service

Sitemap

© 2025 World Economic Forum