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研制了用于海水淡化具有400半渗透层的反渗透合成膜。该膜的制备是用一种聚合物(一般的是三醋酸纤维素)直接在精致的多孔支撑物表面上形成一层薄膜。能够一次淡化海水的合成膜表明,经改进后在高压下透水速度的稳定性要比目前用于淡化苦咸水的膜好一些。
A reverse osmosis membrane was developed for seawater desalination with 400 semi-permeable layers. The membrane was prepared by forming a film directly on the surface of a fine porous support using a polymer, typically cellulose triacetate. Synthetic films capable of desalinating seawater once show that the improved water stability at high pressures is better than the membranes currently used to desalinate brackish water.