Patent ID: 6217777
Filing Date: 2001-04-17
Classification: B01D,B03D,C02F

Abstract:
Flotation apparatus for the purification of polluted water comprising a flotation vessel having side walls and a bottom wall, an inlet means for supplying polluted water to said vessel, an assembly of a plurality of parallel, spaced elements defining passages for the flow of water through said elements, the spaced elements being inclined such that a top horizontal distance from the water supply means and tops of the spaced elements is greater than a bottom horizontal distance from the water supply means and bottoms of the spaced elements, and outlet means for surface sludge and outlet means for treated water, said water supply means is positioned at a bottom of said vessel at one end thereof, flow directing means is arranged to force the incoming polluted water to reach a level above said assembly and to flow downwardly through said assembly and towards said treated water outlet means, and said treated water outlet means comprises at least one compartment in communication with the bottom wall of said vessel, and wherein said spaced elements are positioned on said bottom wall, and extend between said side walls, whereby the water is distributed evenly over said assembly when passing therethrough.