Lamellar separator

A lamellar separator containing a lamellar pack comprising elongate, substantially planar lamellae extending substantially horizontally for vertically defining substantially horizontal flow passages or channels for a liquid which is to be purified, said flow passages in their transverse direction being inclined to the horizontal plane for gravitational removal from the lamellae of heavy and/or light pollutants separated from the liquid, said separator including an inlet, a liquid outlet and at least one outlet for separated material, said lamellar pack including vertically oriented first sheets or plates having a first corrugation in the vertical plane, portions of the first plates inclined to the vertical plane of said plates forming said flow passages, said lamellar pack further including vertically oriented second plates corrugated in the horizontal plane, said second plates being disposed on either side of each first plate and being in contact therewith whereby the liquid flow is subdivided into a plurality of partial flows each passing through the horizontal flow passages defined by peaks of the second plates and corrugation surfaces of the first plates.