Leader in Biological Water Purification

BioGreen™  produces biological and healthy drinking water without the use of harmful chemicals, removing all major contaminants in a single step incl. arsenic, iron, manganese,  bacteria, viruses and microbes. In the process it produces no sludge or harmful by-products, nor corrosion or clogging.


The first water purification installation was built in Sweden in 1977 and is still in operation.


Since then multiple installations have been built in Europe, India and China.

Award Winning

In 2017, 2018 & 2019, the BioGreen™ system has been awarded the most innovative water purification technology in the world by Capital Finance International (Cfi.org). The Chinese Ministry of Water Resources has selected UWI’s water purification as the best drinking water purification technology in the world.


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