| 摘要 |
The invention relates to a filtering device, comprised of a housing (10) with an inlet (1) and an outlet (2) connection, an exchangeable, substantially cylindrical activated carbon first filter (20) connected to the inlet connection (1), with a hollow core (21) extening along the cylinder axis, accommodating a membrane filtration module (30) that is connected to the outlet connection (2), the first filter (20) and the membrane filtration module (30) being connected in series, and the filtration module (30) comprising a bundle of capillary filtration membranes (32) whose open ends are connected to the outlet connection (2). The outer cylinder shell of the first filter (20) forms an inlet, and the inner shell of the first filter (20) surrounding the hollow core (21), forms an outlet for the first filter (20). The first filter (20) comprises a block of activated carbon. The membrane filtration module (30) comprises a module housing (31) surrounding the capillary membranes (32), embodied as a perforated tube accommodated in, and for the most part without contacting the hollow core (21) of the first filter (2). Around the block of activated carbon (20) a felt-like filter (40) is provided as a first filtering stage. The perforated shell (31) is provided with a membrane layer (60) comprising a water-insoluble biocidal polymer. The capillary membranes (32) may also be provided with a water-insoluble polymer. |
