Ibhiya eyidrafti, ekwabizwa ngokuba yibhiya eyidrafti, luhlobo lwebhiya ehluzwayo kunye ne-aseptic yokuzalisa ibhiya ngaphandle kokuthambisa okanye ubushushu obuphezulu bokubulala iintsholongwane kwangoko.Iqulethe i-amino acids etyebileyo, i-carbohydrates, i-salts ye-inorganic, iindidi zeevithamini kunye neentlobo ezahlukeneyo ze-enzymes ezisebenzayo, ezinokuphucula ukutya kunye nokukhuthaza ukugaya.
Ibhiya eyilwayo yeyodidi oluphezulu lwebhiya.Ukuhluzwa kunye nokuvala inzala likhonkco eliphambili kwimveliso.Itekhnoloji yokwahlula iMembrane inokugcina ngokupheleleyo zonke iintlobo zezondlo ekutyeni ngokusebenzisa umgaqo wokuhlola.Xa kusetyenziswa ukuveliswa kwebhiya eyidrafti, utywala obuveliswayo bucace ngakumbi kwaye bubonakala, ukugcinwa kweqamza ixesha elide, kwaye i-protein ebuthathaka kunye ne-cold turbidity index ingaphezulu kwama-30% ngaphantsi kokucoca komhlaba oyiwaka.Nangona kunjalo, ungcoliseko lwe-membrane olungenakuthintelwa luchaphazela kakhulu ukusebenza kohluzo, kwaye umaleko wokupasa ozinzileyo umalunga ne-10L/(m²/h), nto leyo enqanda ukusetyenziswa kobuchwepheshe bokucoca inwebu kwimveliso yebhiya.
Indlela yokulinga
Ukuhanjiswa kobungakanani bepore ye-membrane ye-PVDF imiselwe yindawo ye-bubble eyenziwe ngokwayo - indlela yesantya sovavanyo lokusabalalisa ubungakanani bepore.I-diaphragm ejikelezayo inqunyulwe kwifilimu eyomileyo, ifakwe kwiwaka lolwelo olumanzi olumanzi lude lutshintshe, lususwe kwaye lomiswe ngephepha lokucoca, kwaye lusasazeke kwi-detector ukuze ibonwe.Isisombululo sokuntywila sasiyi-isopropanol, kwaye umthombo woxinzelelo wawuyi-nitrogen.
Ukulinganisa i-Angle yoqhagamshelwano, i-diaphragm ye-square ye-2cmx2cm yasikwa, igxininiswe kwisilayidi, kwaye ibekwe kwitafile yesampuli ukuze ibonwe.I-Angle yoqhagamshelwano yamaconsi amanzi avela kumphezulu wefilimu ukuba anyamalale ngokupheleleyo yabhalwa.
Iindawo ezingaphezulu kunye nezisezantsi zeesampuli zefilimu ezimele zifakwe kwitafile yesampuli kunye ne-adhesive conductive ngokulandelanayo.Amacandelo anqamlekileyo ayekhenkcekile kwaye acinywa nge-nitrogen engamanzi, kwaye amacandelo anqamlekileyo afakwe kwitafile yesampuli kunye ne-adhesive conductive.Iisampulu zitshixelwe kwivacuum zaza zabekwa kwiqonga le-electron microscope ukuze ziqwalaselwe.
I-Microbial count E. coli count: Thatha isampuli ukuba ihlolwe, bhekisa kwi-GB4789.3-2010 yokuvavanya.Inani elipheleleyo lekholoni yebhiya eyidrafti: Iisampulu zebhiya eyidrafti zathathwa ngaphambi nangemva kokuhluzwa kwaye zavavanywa ngokwe-GB4789.2-2010.Ukubalwa kwegwele: Thatha iisampulu zebhiya eyidrafti ngaphambi nasemva kohluzo, bhekisa kwi-GB4789.15
I-hydrophilic pvdf-n okanye i-pvdf-f microfiltration membrane yafakwa kwi-membrane pool kwaye inzalo yi-121 ° C yoxinzelelo oluphezulu lwe-steam ye-20min.Isixhobo sokucoca esenziwe ngokwazo (jonga uMzobo 1) sisetyenziselwe ukulinganisa ukuguquguquka kwedrafti yokucoca ibhiya kunye nexesha lokucoca phantsi kwe-lOOkPa yamandla okubuyisela ukuhluza, kwaye inkqubo yovavanyo iboniswe kuMzobo 2. Inkqubo yokuqala yokucoca i-membrane entsha. ichazwe njengeC. Emva kokucoca ixesha elide de i-membrane i-flux attenuation ifikelele kwixabiso elizinzile, i-membrane yahlanjululwa ukuze iphinde ifumane i-membrane flux, kwaye i-membrane ecocekileyo iqhubekile nokucoca i-drafti yebhiya.Imijikelezo emine yokuqala yokucoca i-membrane yahlanjwa ngamanzi, kwaye imijikelezo emine yokugqibela ihlanjwe ngesisombululo se-0.05mo1 / L NaOH, isisombululo se-0.05mo1 / L HCl kunye namanzi ngokuhlukileyo.
Ixesha lokuposa: Sep-15-2022