Wanne daga cikin kayan 5 na reverse osmosis membranes ba ku sani ba?
01
Cellulose acetate membrane (CA membrane sheet)
Cellulose acetate ne sako-sako da farin barbashi ko fibrous foda, wari, mara guba, haske barga, kuma sosai hygroscopic. A halin yanzu abu ne da aka yi nazari sosai a baya na osmosis membrane. Ko da yake acetate cellulose abu ne mai kyau na membrane, da - COOR a cikin sarkar kwayoyin halitta ya sa ya zama mai sauƙi don yin amfani da ruwa a ƙarƙashin yanayin zafi mai zafi da acid-base, kuma alkaline ko acidic hydrolysis na iya sa ƙungiyar acetyl ta ɓace. Sabili da haka, amfani da kayan CA mai tsabta yana ƙarƙashin wasu iyakoki.
02
Film polyamide aromatic (PA membrane sheet)
Ana amfani da polyamides na aromatic sosai a cikin masana'antar membrane saboda kwanciyar hankali ta jiki da sinadarai, juriya ga alkalis mai ƙarfi, esters mai, da kaushi mai ƙarfi, da ƙarfin injina mai kyau. Duk da haka, saboda yanayin cajin membranes na PA da ke aiki a pH 6-10, barbashi a cikin ruwa suna da wuyar ajiya a saman membrane, yana rage rayuwar sabis.
03
Chitosan membrane (CS membrane sheet)
Ana samun Chitosan (CS) ta hanyar cire ƙungiyoyin acetyl daga ƙwayoyin chitosan. Yana da nau'i-nau'i masu yawa, kyawawan kaddarorin samar da fim da daidaituwa, kuma yana da sauƙin gyara sinadarai. Saboda tsarinsa na kwayoyin halitta, ruwa mai tsafta da ake amfani da shi a baya osmosis zai iya samar da karfi mai karfi na hydrogen tare da kwayoyin ruwa, kuma ikonsa na cire ions karfe na alkaline yana da karfi. Saboda haka, ya fi CA membranes da polyamide membranes kuma ana ɗaukarsa wani abu mai ban sha'awa mai ban sha'awa, wanda ya sami kulawa a duniya. Cs reverse osmosis membrane yana da babban juzu'i da zaɓe, kuma yana da kyakkyawan sakamako na cirewa akan gishirin ƙarfe divalent. Saboda ƙarfin juriya na alkali da juriya na acid bayan hayewa, Cs membranes ba su da sauƙin iya haifar da ƙwayoyin cuta kuma galibi ana amfani da su azaman membranes na osmosis don tausasa ruwa mai wuya.
04
Polyphenylene baya osmosis membrane
Kayan polyphenylene irin su polybenzimidazole (PBD) da polyphenylene oxide (PPO) suma sun ja hankalin jama'a saboda tsananin zafinsu, juriyar acid da alkali, kuma za'a iya gyara su don samun mafi kyawun kayan fim na bakin ciki.
05
Sauran haɗe-haɗe na juyewar osmosis membranes
Composite reverse osmosis membrane wani nau'i ne na membrane wanda ya haɗu da bakin ciki, ƙaƙƙarfan Layer na kayan daban-daban tare da ayyuka na musamman na rabuwa akan madaidaicin tallafi. Yana da mafi girman rabon rabuwa da adadin shigar ruwa fiye da hadedde membranes, sabili da haka yana da rabon kasuwa sama da 90%. A halin yanzu, an yi amfani da membranes na baya-bayan nan da yawa a fannoni kamar su petrochemicals, Electronics, Textiles, light masana'antu, karafa, magani, fasahar halittu, abinci, da kare muhalli.