Nature-Based Solutions for Wastewater Management

Using Algae to Reduce Emerging Contaminants in Wastewater

Algae are nature’s janitors for our water supply. These small plants feed on excess nitrogen and phosphorus coming from our fertilizers and detergents, pulling them out of the water.

Algal turf scrubbers are metal water channels covered with a rough surface. With sunlight and nutrients in the water, algae start growing and removing impurities from the water.

This project, a partnership between the IWH and a local municipal wastewater treatment plant, is the first of its kind in the nation to study nutrient removal onsite using this technology.

IWH researchers are expanding this research to see if this nature-based technology can remove dangerous emerging contaminants from wastewater so our environment can be safe, allowing for the future of wastewater treatment to enter a new, sustainable era.

Last updated: 2/8/2024