| 摘要 |
<p>The invention relates to an apparatus for purifying water, comprising an ion exchanger (3) with a water inlet (2) and a product outlet (4), is connected to an inlet of a first filtration step (5), which comprises one or several nano- and/or RO-filtration membranes and is provided with a first permeate outlet (9) and a first concentrate outlet (8). According to a first embodiment, said apparatus is characterized in that the same comprises a subsequent filtration step (10) in which an inlet is connected with the first concentrate outlet (8), which subsequent filtration step (10) comprises one or several subsequent nano- and/or RO-filtration membranes, and which is provided with a second permeate outlet (11) and second concentrate outlet (12), which second concentrate outlet (12) is optionally connected with an inlet of a subsequent filtration step.</p> |
