Ubhiya obusalungiswa, owaziwa nangokuthi ubhiya obusalungiswa, uwuhlobo lukabhiya ohlungiwe we-aseptic nokugcwalisa i-aseptic ngaphandle kwe-pasteurization noma izinga lokushisa eliphezulu lokubulala amagciwane ngokushesha.Iqukethe ama-amino acid acebile, ama-carbohydrate, usawoti we-inorganic, amavithamini ahlukahlukene kanye nezinhlobonhlobo zama-enzyme asebenzayo, angathuthukisa isifiso sokudla futhi akhuthaze ukugaya.
Ubhiya obusalungiswa ungowezinga eliphezulu likabhiya.Ukuhlunga nokuvala inzalo kuyisixhumanisi esibalulekile sokukhiqiza.Ubuchwepheshe bokuhlukanisa ama-membrane bungagcina ngokuphelele zonke izinhlobo zemisoco ekudleni ngokusebenzisa isimiso sokuhlola.Uma busetshenziswa ekukhiqizeni ubhiya obusalungiswa, utshwala obukhiqizwayo bucace kakhudlwana futhi busobala, ukugcinwa kwebhamuza kuba kude, futhi inkomba ezwelayo yamaprotheni kanye ne-cold turbidity index ingaphansi kuka-30% kunokuhlunga komhlaba oyinkulungwane.Nokho, ukungcoliswa kolwelwesi olungenakugwemeka kuthinta kakhulu ukusebenza kokuhlunga, futhi isendlalelo sokudlula esizinzile silinganiselwa ku-10L/(m²/h), esikhawulela ukusetshenziswa kobuchwepheshe bokuhlunga ulwelwesi ekukhiqizeni ubhiya.
Indlela yokuhlola
Ukusatshalaliswa kosayizi wembotshana we-membrane ye-PVDF kwanqunywa iphoyinti lebhamuza elenziwe mathupha - indlela yesivinini umhloli wokusabalalisa usayizi wembotshana.I-diaphragm eyindilinga iyanqunywa kufilimu eyomile, icwiliswe oketshezini olumanzi oluyinkulungwane kuze kube kukhanya, isuswe futhi yomiswe ngephepha lokuhlunga, bese isakazwa kumtshina ukuze ibonwe.Isixazululo sokucwiliswa kwakuyi-isopropanol, futhi umthombo wokucindezela kwakuyi-nitrogen.
Ukuze uthole ukukalwa kwe-Engeli yokuxhumana, i-diaphragm yesikwele engu-2cmx2cm yasikwa, yamiswa kusilayidi, yabekwa phezu kwetafula lesampula ukuze itholwe.I-Angle yokuxhumana yamaconsi amanzi avela ebusweni befilimu ukuze anyamalale ngokuphelele yarekhodwa.
Izindawo ezingaphezulu neziphansi zamasampula efilimu amele afakwe etafuleni lesampula nge-adhesive conductive ngokulandelanayo.Izingxenye eziphambanayo zazifriziwe futhi zacinywa nge-nitrogen ewuketshezi, futhi izingxenye zesiphambano zixhunywe etafuleni lesampula nge-adhesive conductive.Amasampula avalelwe ku-vacuum futhi abekwa endaweni yesibonakhulu se-electron ukuze abukwe.
Isibalo se-Microbial E. coli count: Thatha isampula ukuze ihlolwe, bheka ku-GB4789.3-2010 ukuze uhlolwe.Inani eliphelele lekholoni likabhiya osalungiswa: Amasampula kabhiya osalungiswa athathwa ngaphambi nangemuva kokuhlunga futhi ahlolwa ngokuya nge-GB4789.2-2010.Isibalo semvubelo: Thatha amasampula kabhiya osalungiswa ngaphambi nangemva kokuhlunga, bheka ku-GB4789.15
I-hydrophilic pvdf-n noma i-pvdf-f microfiltration membrane yafakwa ku-membrane pool futhi yafakwa inzalo ngo-121°C umusi wokucindezela okuphezulu imizuzu engu-20.Idivayisi yokuhlunga ezenzele yona (bona Umfanekiso 1) yasetshenziselwa ukukala ukuhluka kokugeleza kokuhlunga kobhiya ngesikhathi sokuhlunga ngaphansi kwamandla okucindezela okuhlunga kwe-lOOkPa, futhi inqubo yokuhlola iboniswe kuMfanekiso 2. Inqubo yokuqala yokuhlunga ye-membrane entsha i okuchazwa ngokuthi C. Ngemva kokuhlunga isikhathi esithile kuze kube yilapho ulwelwesi lwe-flux attenuation lufinyelela inani elizinzile, ulwelwesi lwahlanzwa ukuze kubuyiselwe ulwelwesi olugelezayo, futhi ulwelwesi oluhlanziwe lwaqhutshekwa nokuhlunga ubhiya obusalungiswa.Imijikelezo emine yokuqala yokuhlanza ulwelwesi yagezwa ngamanzi, kanti imijikelezo emine yokugcina yagezwa ngesisombululo se-0.05mo1/L NaOH, isisombululo se-HCl esingu-0.05mo1/L namanzi ngokushintshana.
Isikhathi sokuthumela: Sep-15-2022