Ultra-filtration (UF) waa farsamada kala soocida xuubka kaas oo nadiifiya oo kala saara xalalka.Ka-hortagga wasakhda PVDF ultrafiltration xuubka waxay isticmaashaa maadada polymer polyvinylidene fluoride sida alaabta ceeriin ee filimka ugu weyn, PVDF xuubka laftiisa ayaa leh iska caabin adag oo oksaydh ah, ka dib markii wax laga beddelo wax gaar ah oo uu leeyahay hydrophilicity wanaagsan, habka xuubka iyada oo loo marayo naqshadaynta micropore sayniska iyo xakamaynta qaabdhismeedka micropore, micropore cabbirka daloolka wuxuu gaaraa heerka ultrafiltration.Alaabta xuubka noocan oo kale ah waxay leeyihiin faa'iidooyinka daldaloolada labbiska ah, saxnaanta sifaynta sare, gelista biyaha sare ee aagga cutubka, iska caabinta oksaydhka iyo xoogga sare ee xajinta.