Umehluko phakathi kwemishini ye-ultrafiltration kanye nemishini ye-osmosis ehlehlayo
Umehluko omkhulu phakathi kolwelwesi lwe-ultrafiltration kanye ne-osmosis ehlehlayo umehluko ngosayizi wembotshana. Usayizi wezimbotshana zomkhumbi we-reverse osmosis membrane yiphesenti elilodwa le-ultrafiltration membrane, futhi ukunemba kokuhlunga kwe-reverse osmosis membrane kuphakeme kunaleyo ye-ultrafiltration membrane. I-Ultrafiltration membrane uma iqhathaniswa nolwelwesi lwe-osmosis ehlehlayo, i-reverse osmosis membrane aperture incane kakhulu kune-ultrafiltration membrane, i-reverse osmosis membrane aperture yi-0.0001 micron, i-ultrafiltration membrane aperture yi-0.001 micron. Usayizi wembotshana we-reverse osmosis membrane uyiphesenti elilodwa le-ultrafiltration membrane, ngakho-ke amanzi ahlungwe ngolwelwesi olungemuva lwe-osmosis ahlanzeke kakhulu kunalawo olwelwesi lwe-ultrafiltration.
Ulwelwesi lwe-Ultrafiltration luyindlela yokuhlukanisa ulwelwesi lapho ulwelwesi lunesakhiwo esinezimbotshana ze-asymmetric. Inqubo yokuhlunga iyinqubo yokuhlukanisa isixazululo ngokusekelwe kumgomo we-sieving wemishini yomehluko wengcindezi phakathi kwezinhlangothi ezimbili ze-membrane, ingcindezi yokusebenza ngokuvamile i-0.01 kuya ku-0.03Mpa, kanti usayizi omuhle we-pore we-membrane ye-ultrafiltration imayelana ne-0.001 kuya ku-0.01 microns. Isisindo se-molecule ye-interception singamadaltons angu-1,000-500,000, ngakho-ke inqubo yokuhlukanisa ulwelwesi lwe-ultrafiltration yake yabhekwa njengenqubo yokuhlukanisa ngokomzimba.
I-Reverse osmosis membrane iwulwelwesi lokwenziwa olukwazi ukungena kancane olunezici ezithile ezidalwe ngokulingisa ulwelwesi lwebhayoloji olungene kancane. I-RO isifinyezo sesiNgisi se-reverse osmosis membrane, isiShayina sisho i-osmosis ehlehlayo. Ukugeleza kwamanzi okuphelele ukusuka phansi ukuya phezulu. Lapho amanzi ecindezelwa, amanzi azogeleza esuka phezulu aye phansi. Lokhu kubizwa ngokuthi isimiso se- reverse osmosis. Imbobo yolwelwesi olungemuva lwe-osmosis iyingxenye yezigidi ezinhlanu (0.0001 micron) yalolo loboya bomuntu. Amagciwane namagciwane kukhulu ngokuphindwe ka-5,000, okuvumela kuphela ama-molecule amanzi kanye nama-ion amaminerali anenzuzo ukuthi adlule, kuyilapho okunye ukungcola nezinsimbi ezinzima kukhishwa emapayipini amanzi angcolile.
Imbobo yolwelwesi olungemuva lwe-osmosis ingu-1/100 wokuvula ulwelwesi lwe-ultrafiltration, futhi ukunemba kokuhlunga kwe-RO reverse osmosis membrane kufinyelela ku-0.0001 micron. Nokho, ukunemba kokuhlunga kwe-ultrafiltration membrane yi-0.001 microns. Ngakho-ke, ulwelwesi lwe-osmosis oluhlehlayo lungasusa izinsimbi ezisindayo, izibulala-zinambuzane, i-chloroform nezinye izinto ezingcolisa amakhemikhali emanzini, kodwa ulwelwesi lwe-ultrafiltration alukwazi. Ulwelwesi lwe-ultrafiltration lususa ukungcola okuyingxenye namagciwane, futhi i-osmosis ehlehlayo iwasusa amandla onke.