RO (Reverse Osmosis) reverse osmosis fasahar ne ta amfani da matsin lamba bambanci domin ikon membrane raba tacewa fasahar, ya samo asali ne daga Amurka a shekarun 1960 da sararin samaniya kimiyya da fasahar bincike, bayan a hankali ya fassara zuwa fararen hula, a halin yanzu da yawa amfani da bincike, magani, abinci, abin sha, teku ruwa desalination da sauran fannoni.

RO reverse osmosis membrane aperture karami zuwa nano-matakin (1nm = 10-9 (1 miliyan) mita), a karkashin wani matsin lamba, H2O kwayoyin za su iya wuce RO membrane, yayin da raw ruwa mara kyau gishiri, nauyi karfe ions, organic abubuwa, colloids, kwayoyin cuta, ƙwayoyin cuta da sauran gurɓataccen abubuwa ba za su iya wuce RO membrane, don haka ya sa tsabta bambanci tsabta ruwa da ba za a iya wucewa da m ruwa.

Janar ruwa mai fitarwa ta hanyar R O membrane tacewa bayan tsabtace ruwa wutar lantarki iya kai 5μs / cm (R O membrane tacewa bayan fitar da ruwa wutar lantarki = shigar da ruwa wutar lantarki × (1-kawar da gishiri rate), janar shigo da reverse osmosis membrane kawar da gishiri rate iya kai sama da 99%, a cikin shekaru 5 aiki zai iya tabbatar da sama da 97%. Don buƙatun fitarwar ruwa mafi girma, za a iya amfani da matakai biyu na reverse osmosis, sa'an nan kuma bayan sarrafawa mai sauƙi, fitarwar ruwa ta kasa da 2μs / cm), daidai da ƙa'idodin amfani da ruwa na mataki na uku na dakin gwaje-gwaje na ƙasa. Ta hanyar atomic madaidaicin ion musayar ginshiki zagaye tacewa ko EDI kayan aiki, fitar da ruwa juriya iya kai 18.2MΩ · cm, fiye da kasa dakin gwaje-gwaje matakin ruwa (GB6682-2008).

Shirya ruwa na sararin samaniya, tsabtace ruwa, ruwa mai tsabtace da sauransu; Giya brewing da kuma rainfall amfani da ruwa; Shirye-shiryen ruwa na magani, lantarki da sauran masana'antu; Concentration, rabuwa, tsaftacewa da kuma rarraba ruwa shirye-shiryen sinadarai; boiler samar da ruwa kawar da gishiri m ruwa; desalination na ruwan teku, ruwan gishiri; Takarda, electroplating, buga launi da sauran masana'antun ruwa da kuma sharar ruwa treatment.