| 摘要 |
<p>The filtration module of the invention consists of a first membrane (61) chosen from the group consisting of microfiltration, ultrafiltration and nanofiltration membranes exhibiting a first cutoff capacity coupled with at least one second reverse-osmosis membrane (71, 81) exhibiting a second cutoff capacity which is higher than the first cutoff capacity, the said second membrane (71, 81) being mounted as ''series-disposal'' downstream of the said first membrane (61), the general filtrate (90) produced by the said filtration module being made up of the combination of the filtrates (62, 70) originating from all of the said membranes (61, 71, 81). <IMAGE></p> |
