For the first stage in the mechanical screening of seawater (coarse screening), the efficient and robust Geiger® Cable-Operated Bar Screen was implemented. For the second (fine screening/filtration) the innovative, compact and low-maintenance Geiger MultiDisc® in order to protect pumps and downstream processes has been installed.
All raw water cleaning machine parts in contact with the seawater were either made of DUPLEX stainless steel and resistant polyamide PA6 in order to achieve the highest possible corrosion resistance. Also screws, nuts and washers of the immersed parts were made of DUPLEX stainless steel. In addition, the whole equipment is protected by a Geiger® Cathodic Corrosion Protection System with impressed current.
The Geiger MultiDisc® Travelling Water Screens have also been redesigned at the plant among other things with panels made of glass fibre reinforced plastic. A significant advantage of the Geiger Multi Disc® compact solution has been the shortening of 3 intake channels (civil structure) by over 8 metres compared to a conventional band screening design.