The concept of producing modular water purification systems was born from a desire to be able to quickly deliver transportable plug and play purification systems to areas suffering natural disasters around the world, to be able to provide the affected areas with clean drinking water. It soon became clear however that there were vast opportunities in using the systems in industrial production, including purifying process water for either discharge or reuse.


The technology behind the Clean Water Unit was developed by the Danish chemical engineer Elo Nielsen, who has headed Sunstone Water Group in the US since 2008. Elo Nielsen, among other things, has previously developed patented refrigeration units for Maersk’s container ships.

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