Draft giya, wanda kuma aka sani da daftarin giya, wani nau'i ne na tacewa da kuma mai cika giyar aseptic ba tare da pasteurization ko babban zafin jiki nan take ba.Ya ƙunshi wadataccen amino acid, carbohydrates, salts inorganic, bitamin iri-iri da nau'ikan enzymes masu aiki iri-iri, waɗanda zasu iya haɓaka ci da haɓaka narkewa.
Draft giya yana cikin babban ajin giya.Tace da haifuwa shine mabuɗin hanyar samarwa.Fasahar rabuwar membrane na iya riƙe kowane nau'in sinadirai a cikin abinci gaba ɗaya ta amfani da ƙa'idar tantancewa.Lokacin da aka yi amfani da shi don samar da daftarin giya, barasa da aka samar ya fi haske kuma a bayyane, riƙewar kumfa ya fi tsayi, kuma ma'anar furotin da sanyin sanyi sun fi 30% ƙasa da tacewa na duniya dubu.Koyaya, gurɓataccen membrane wanda ba makawa yana da matukar tasiri ga aikin tacewa, kuma madaidaicin ma'auni ya wuce kusan 10L/(m²/h), wanda ke iyakance aikace-aikacen fasahar tacewa membrane a cikin samar da giya.
Hanyar gwaji
Rarraba girman ɓangarorin ɓangarorin PVDF an ƙaddara ta hanyar madaidaicin kumfa - Hanyar saurin rarraba girman pore mai gwadawa.Ana yanke madauwari mai da'ira daga busasshiyar fim ɗin, a jika shi a cikin ruwa mai dubun ruwa har sai an cire shi a bushe da takarda mai tacewa, sannan a watsa a kan na'urar ganowa don ganowa.Maganin soaking shine isopropanol, kuma tushen matsa lamba shine nitrogen.
Don auna kusurwar lamba, an yanke diaphragm murabba'i 2cmx2cm, an daidaita shi akan faifan, kuma an sanya shi akan teburin samfurin don ganowa.An yi rikodin kusurwar lamba na digon ruwa daga saman fim ɗin don bacewar gaba ɗaya.
An haɗe saman saman da ƙananan saman samfuran fina-finai na wakilai zuwa teburin samfurin tare da manne mai ɗaukuwa bi da bi.An daskarar da sassan giciye kuma an kashe su tare da ruwa nitrogen, kuma an haɗa sassan giciye zuwa teburin samfurin tare da manne mai ɗaukar hoto.Samfurori an kulle su a sarari kuma an sanya su a kan dandali na microscope na lantarki don kallo.
Ƙididdigar ƙananan ƙwayoyin cuta E. coli: Dauki samfurin da za a gwada, koma GB4789.3-2010 don gwaji.Jimlar ƙidayar giyar mallaka: An ɗauki samfuran giyar da aka zana kafin da bayan tacewa kuma an gwada su bisa GB4789.2-2010.Ƙididdigar yisti: Ɗauki samfurin giya kafin da bayan tacewa, koma GB4789.15
An saka membrane na hydrophilic pvdf-n ko pvdf-f microfiltration membrane a cikin tafkin membrane kuma an haifuwa ta 121 ° C babban tururi na 20min.An yi amfani da na'urar tacewa da kanta (duba Hoto 1) don auna bambancin daftarin aikin tacewa na giya tare da lokacin tacewa a ƙarƙashin lOOkPa tacewa karfi, kuma an nuna tsarin gwaji a cikin Hoto 2. Tsarin farko na tacewa na sabon membrane shine. An nuna cewa C. Bayan tace lokaci har zuwa lokacin da membrrane prox athenate ya kai karar darajar suttura, da kuma tsabtace membrane ta tsabtace don tace giya mai daftarin da aka tsabtace.An wanke zagaye na farko na tsaftacewa na membrane da ruwa, kuma an wanke zagaye hudu na ƙarshe tare da 0.05mo1 / L NaOH bayani, 0.05mo1 / L HCl bayani da ruwa a madadin.
Lokacin aikawa: Satumba-15-2022