Reverse osmosis membrane shine babban ɓangare na cimma reverse osmosis, wani nau'i ne na wucin gadi na wucin gadi wanda aka yi da kwaikwayon biopermeable membrane tare da wasu halaye. Yawancin lokaci an yi shi da kayan polymer. Kamar cellulose acetate membrane, aromatic polyamide membrane, aromatic polyamide membrane. Diameter na farfajiyar micropores yawanci tsakanin 0.5 ~ 10nm, girman gudanarwa yana da alaƙa da tsarin sinadarai na membrane kanta. Wasu kayan polymer suna da kyau ga gishiri, kuma saurin wucewa na ruwa ba shi da kyau. Wasu tsarin sinadarai na kayan polymer suna da ƙungiyoyin hydrophilic da yawa, saboda haka saurin wucewa na ruwa yana da sauri. Saboda haka wani gamsuwa reverse osmosis membrane ya kamata ya sami dacewa penetration ko desalination rate.

Reverse osmosis membrane ya kamata ya kasance da wadannan halaye: (1) ya kamata ya kasance da high inganci desalination rate a high gudun gudun; (2) yana da babban ƙarfin inji da rayuwar aiki; (3) iya yin aiki a ƙarƙashin ƙananan matsin lamba na aiki; (4) iya jurewa da tasirin sinadarai ko sinadarai; (5) ƙananan tasirin pH, zafin jiki da sauran abubuwa; (6) Film samar da albarkatun kasa tushen ne mai sauki, mai sauki da kuma low farashi.

Tsarin reverse osmosis membrane, akwai nau'ikan non-symmetric membrane da homogeneous membrane. Kayan membrane da ake amfani da su a halin yanzu sune mafi yawan cellulose acetate da polyamide mai ƙanshi. Abubuwan da ke ciki suna da nau'in fiber, ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan ruwan Ana iya amfani da su raba, karfafa, tsaftacewa da sauran aikin sinadarai, wanda aka fi amfani da shi a cikin shirye-shiryen ruwa mai tsabta da masana'antun sarrafa ruwa.