| 摘要 |
PROBLEM TO BE SOLVED: To provide a reverse osmosis membrane module causing little corrosion of a permeating water nozzle and having superior durability, even if the permeating water of the reverse osmosis membrane is highly corrosive, as in a case of desalination of sea water or treatment of an acidic aqueous solution. SOLUTION: The permeating water nozzle of the reverse osmosis membrane module is made of a resin-based material with a Charpy impact strength of 4 kj/m<SP>2</SP>or more, a bending modulus of 4 GPa or more, and a water absorption of 0.5% or less. COPYRIGHT: (C)2008,JPO&INPIT
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