| 摘要 |
Purification device (1, 16, 29) for removing foam-forming contaminants from fresh water, comprising a vertically placeable tubular housing (2, 2', 2") which housing, in vertical position, - is provided on its top side with a closing cover (3), is divided by a grating (4) into an upper compartment (5) and a lower compartment (6), wherein the upper compartment is provided with an inlet channel (7) for water for purifying debouching above the level of the grating (4) and with air inlet means (8, 9) for admitting air into the upper compartment (5) during operation of the device (1, 16) in order to build up an overpressure relative to the ambient pressure of the device, and wherein the lower compartment (6) is provided with a first outlet channel (10) for foam and a second outlet channel (11) for purified water. |
