| 摘要 |
<p>A filter system is provided having a filter (10) of porous, expanded polytetrafluoroethylene, means (31) for flowing an impure liquid (30) to be filtered through the filter (10), the filter system being entirely immersed in the impure liquid (30) to be filtered. The filter (10) is preferably in the form of a plurality of hollow fibers, a plurality of tubes or a supported film.</p> |
