Water treatment in container at Power-to-Gas facility

At the Nature Energy Glansager Power-to-Gas facility in Denmark, they utilize surplus electricity generated by wind turbines to enhance biogas production while reducing CO₂ emissions. This is achieved by transforming CO₂ into natural gas through the addition of hydrogen. To facilitate this process, electrolysis is employed, necessitating the use of highly purified water.

Silhorko-Eurowater has been responsible for designing and manufacturing the complete water treatment solution for the electrolyzer plant supplied by Andel and BWSC as sub-supplier of mechanical balance-of-plant equipment and installation.

The hydrogen production relies on alkaline water electrolysis (AWE) technology. The water treatment consists of softening as pretreatment followed by double-pass reverse osmosis and membrane degassing for high quality demineralized water with conductivity below 5 µS/cm. The solution is containerized ensuring a small footprint and easy installation.