Silt Curtains manufactured by NorLense prevent polluted mud from the sea floor spreading through the water collum.
Silt Curtain conists of a freeboard containing expanded polystyrene, see NO-250-F or NO-350-F. No air filling is required. The skirt is manufactured of a special membrane which only allows water to pass through. The skirt is adapted to the water depth in the actual area. Silt Curtains are often used when cleaning up polluted mud from harbours.