| 摘要 |
<p>Filtering untreated water in an installation comprising two membrane filtration units comprises pumping untreated water to a unit that is in filtration mode and using the purified water from this unit to backflush the other unit. An independent claim is also included for a filtration installation comprising two membrane filtration units (1, 2), in which untreated water is supplied to the units by a pump (3), purified water from the units is discharged through a purified water conduit (12), and purified water from a unit (1) in filtration mode is used to backflush a unit (2) in backflush mode before being discharged through a waste water conduit (18).</p> |
