| 摘要 |
PROBLEM TO BE SOLVED: To provide a reverse osmosis separator capable of effectively performing the repair of a poststage reverse osmotic membrane in the reverse osmosis separator performed in multi-stages. SOLUTION: The reverse osmosis separator is provided with a first reverse osmosis membrane module M0, a second reverse osmosis membrane module M1, a supplying line L1 for supplying a concentrated liquid 6b obtained from the first reverse osmosis membrane module M0 to the second reverse osmosis membrane module M1, a pump P1 provided at the supplying line L1 and for pressurizing and supplying the concentrated liquid 6b to the second reverse osmosis membrane module M1 and a repairing agent supplying means 7 for supplying the repairing agent for repairing the reverse osmosis membrane in the second reverse osmosis membrane module.
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