After years of collaborative research, Danish industrial biotechnology company Aquaporin has discovered a highly efficient wastewater treatment method. The technique mimics how plants pull out water from the soil using tiny channels called aquaporins in a process known as forward osmosis, a method that does not require energy.

With industrial research partners and Singapore's Nanyang Technological University, Aquaporin has developed a protein membrane that does the same thing. Featuring water channels only a few nanometres wide, the membrane allows only water molecules to pass through in a single file at about a billion molecules per second. The breakthrough extracts ultrapure water from saltwater or wastewater at only a third of the cost and a tenth of the energy required by the conventional reverse-osmosis system.

"We're offering something that other companies or technologies cannot do," says Peter Holme Jensen, CEO of Aquaporin. "Because we extract the water instead of treating the waste materials, our technology is able to deliver high purity levels even with heavily polluted water. We're offering an industrial wastewater treatment never imagined possible before."