To-and-fro bridge, sand collector, oil remover

The to-and-fro bridge sand collector, oil remover has the function of conveying the material (sludge, sand, etc.) on the bottom of the tank, through the sludge scraper blades, to a storage hopper and hence it is extracted by a system not supplied by Friulana Costruzioni. At the same time, the foaming blades convey the suspended solids (light and oily material) to the discharge hopper. The clean water exists from the blades and flows into a discharge channel.

Drawing of the to-and-fro bridge, sand collector, oil remover, model PVDD 110