| abstract |
Installation for water filtration by reverse osmosis and ultrafiltration. The installation includes: raw water intake (1); racks (2); filtration membranes (3, 4), supported on frames (2), and comprising ultrafiltration membranes (4) and reverse osmosis membranes (3); first tank (8), with osmotized water (12); second tank (9), with ultrafiltered water (13); third tank (10) with oxidant solution (14); circuits that communicate each frame (2) with each tank (8, 9, 10, 11), to use each frame (2) selectively in reverse osmosis, transformation of reverse osmosis membranes (3) into ultrafiltration membranes (4), and for ultrafiltration, both in filtration mode as well as in backwash mode, depending on whether a reverse osmosis membrane (3) or an ultrafiltration membrane (4) is mounted in said frame (2); and regulation means to activate in each frame (4) only one of the circuits. |