| 摘要 |
<p>Device for purification of liquids, especially waste water from industrial processes, and including a flocculation chamber having means for supply of a flocculant, a precipitation or sedimentation chamber for separation of the precipitate and a filter unit for further purification of the liquid from the precipitation or sedimentation chamber. In the device the filter unit is arranged as an annular filter array having substantially radially arranged, inclined lamellas, said filter array being slidably and rotatably arranged on a vertical outlet tube in the precipitation or sedimentation chamber and being provided with a float member, which keeps the filter array in predetermined height relative to the surface of the liquid in the precipitation or sedimentation chamber. The flocculation chamber comprises an annular, upwardly open channel, which is arranged around the filter array in the precipitation or sedimentation chamber. A cylindrical casing having apertures is arranged between the filter array and the annular flocculation chamber said casing being arranged to slowly rotate around the outlet tube and being provided with driving means, so that the filter array follows the casing in its rotational movement.</p> |
