PG CleanWater Solutions AS has entered the European wastewater treatment market with two proven technologies: the Fournier Rotary Press and Vibratory Shear Enhanced Processing (VSEP) reverse osmosis system.

The Fournier Rotary Press, invented in 1989 in Canada, has over 600 installations in North America and 25 in Europe. It offers efficient dewatering with 30-40% dry solids (DS) content, low energy consumption (~5 kWh/ton DS), and >95% capture rate. From an inlet digestate of 5% DS, the filtrate contains only 0.25% DS—an exceptional result in the industry.

The VSEP system, patented in 1986 by Dr. J. Brad Culkin, has been widely used across industries like oil, plastics, and beverages, but has seen limited use in wastewater. Now, rising global ammonia prices and stricter discharge regulations are driving interest—especially for nitrogen recovery in biogas plants. In places like Oslo, where 232 municipal wastewater treatment plants must improve nitrogen removal, combining the Rotary Press and VSEP offers a complete solution. The digestate can be split into three fractions: solid (phosphorous-rich), concentrated liquid (nitrogen and phosphorous), and purified water. Tests show up to 99.9% nitrogen removal, helping meet tightening environmental standards.