Devils Lake installation: image courtesy of Green Museum

There is a little family of asexual plants commonly known as duckweed, and otherwise known in the botanical world as lemnaceae. These smallest flowering plants are lean, lime-green, clean, eating machines. Lemna is the most common of this family, and has quite a profound impact for its size. Each plant has one paper thin leaf the size of the tip of an eraser. They thrive in freshwater lakes, streams, and ponds high in nitrogen, ammonias, and phosphorus. As they feed on these “excess nutrients” the tiny plants help remediate the water on which they live atop.

Though these lime-green plants are tiny, there is no need to call them fragile. They can grow in full sunshine or dense shade, and they endure a challenging range of ph levels. They hibernate during the cold months at the bottom of their watershed and, come May, the plant “springs” up and gets to work cleaning its ecosystem. This tiny plant has been known to cover bodies the size of football fields in just a couple months. It goes unsaid that these tiny soldiers are friend and not foe when it comes to water remediation.

When artist and engineer Viet Ngo established a company back in 1983 called Lemna International that applauds and utilizes the capabilities of these mini soldiers, we weren’t surprised. Ngo, a first-generation Vietnamese immigrant, and his colleagues got a little fame when they designed a carefully engineered art installation in 1990 on Devils Lake, ND. Funded by the EPA, they designed and implemented the beautiful 50 acre, 9 channel, intestine-like system that extracted all detrimental phosphorus, nitrogen, and algae from the wetland before the water reached a bay of Devils Lake. This $50 million project encouraged the group of designers, artists, and engineers to combine the profoundly simple yet complex water remediation technology with other environmental infrastructure problems to clean up the earth. Over 25 years later, the company is managing its success with innovation, consciousness, and integrity.

Lemna International designs environmentally responsible and economical wastewater treatment technologies that naturally clean our polluted waterways. They design for everything form dams to freshwater remediation to drinking water treatment plants, pipelines, and distribution systems. Based in Minneapolis, MN the company has designed and implemented over 300 projects in 16 countries.

The company does not stop at only providing us with clean water. They make sure our water stays clean by removing any harmful waste and either safely putting it in landfills built to international standards, or incinerating it to generate electricity and heat in facilities equipped with air pollution control systems. Their impressive profile of clients ranges from industrial food manufacturers and tire plants to hospitals. They additionally serve a number of cities worldwide.

As the company gained momentum with their patented water remediation technology, they have branched out into additional sectors of environmental infrastructure including transportation, alternative energy, and general infrastructure. Like the lean, lime-green, clean, machines that duckweed are, Lemna International is actively seeking to fix any environmental problem a private or public client might have with an ingenious and unique solution!