The algae-based, sustainable wastewater treatment solution.

OUR TECHNOLOGY

Revolving Algal Biofilm (RAB™) System

Our innovative algae-based wastewater treatment technology is the most cost-effective solution to sustainably and reliably recover nutrients from wastewater.

The most sustainable wastewater treatment system on the market.

The RAB™ System compared to other wastewater treatment technologies:

  • Reduces carbon footprint
  • Has an ultra-low energy input
  • Recovers & reuses of nitrogen and phosphorus
  • Produces a valuable algae byproduct
  • Requires no chemical inputs
  • Has the lowest life-cycle costs on the market

Economical solutions for your industry.

Our RAB™ system can be used for a wide variety of municipal and industrial applications as a sustainable, environmentally friendly wastewater treatment solution that is reliable, effective, and more affordable.

We develop clean, sustainable technology.

Our technology is being used in municipalities and alongside industrial and agricultural facilities around the world.

O'Brien – Chicago, Illinois

Municipal Tertiary Treatment
Demo Site

Creston, Iowa

Municipal Tertiary Treatment
Demo Site

Slater, Iowa

Municipal Primary Treatment
4-Belt Demo Site

Pasco, Washington

Industrial Food and Beverage
Full-Scale Site

York

Municipal Anaerobic Digestate
Municipal Primary Treatment
Municipal Tertiary Treatment
Pilot Site

Iowa City, Iowa

Municipal Anaerobic Digestate Treatment
Full-Scale Site

Slater, Iowa

Municipal Primary Treatment
Full-Scale Site

Large Corn Processor

Industrial Food and Beverage
Pilot Site

Stickney – Chicago

Municipal Anaerobic Digestate Treatment
Pilot Site

Darling – Sioux City, Iowa

Industrial Food and Beverage
Pilot Site

Darling – Wahoo, Nebraska

Industrial Tertiary Treatment
Pilot Site

Grain Processing Corp.

Industrial Food and Beverage
Pilot Site

Herrema Dairy

Agricultural 
Pilot Site

Muscatine, Iowa

Municipal Secondary Treatment
Pilot Site

Singapore

Municipal Anaerobic Digestate Treatment
Pilot Site

Sioux City, Iowa

Industrial Food and Beverage
Pilot Site

We don’t just think green, we grow it.