Muzaulimi ndi zam'mbali, vinyo, viniga ndi msuzi wa soya amafufuzidwa kuchokera ku wowuma, wa tirigu.Kusefedwa kwa mankhwalawa ndi njira yofunika kwambiri yopangira, ndipo ubwino wa kusefedwa umakhudza mwachindunji ubwino wa mankhwala.Njira zosefera zachikhalidwe zimaphatikizira kutulutsa kwachilengedwe, kutsatsa kwachangu, kusefera kwa diatomite, kusefera kwa mbale ndi chimango, ndi zina zotere. Njira zoseferazi zimakhala ndi mavuto osiyanasiyana nthawi, ntchito, kuteteza chilengedwe ndi zina, kotero ndikofunikira kusankha kusefera kwapamwamba kwambiri. njira.
Ulusi wa dzenje ukhoza kusokoneza zinthu zazikulu za maselo ndi zonyansa pakati pa 0.002 ~ 0.1μm, ndikulola kuti tinthu tating'onoting'ono tating'onoting'ono tating'onoting'ono ndi zolimba zosungunuka (mchere wamchere) zidutse, kotero kuti madzi osefedwa amatha kusunga mtundu wake, fungo ndi kukoma kwake, ndikukwaniritsa cholinga. kutsekereza kopanda kutentha.Chifukwa chake, kugwiritsa ntchito hollow fiber fyuluta kusefa vinyo, viniga, msuzi wa soya ndi njira yapamwamba kwambiri yosefera.
Polyethersulfone (PES) anasankhidwa kukhala nembanemba zakuthupi, ndi dzenje CHIKWANGWANI ultrafiltration nembanemba zopangidwa za nkhaniyi ali mkulu mankhwala katundu, kugonjetsedwa ndi chlorinated hydrocarbons, ketoni, zidulo ndi zina zosungunulira organic, ndi khola kwa zidulo, zapansi, aliphatic hydrocarbons, mafuta. , mowa ndi zina zotero.Kukhazikika kwamafuta abwino, kukana bwino kwa nthunzi ndi madzi otentha kwambiri (150 ~ 160 ℃), kuthamanga kwachangu, mphamvu zamakina apamwamba.Nembanemba yosefera ndiyosavuta kuyeretsa ndi nembanemba yamkati yamkati, ndipo chipolopolo cha membrane, chitoliro ndi valavu zimapangidwa ndi chitsulo chosapanga dzimbiri cha 304, chomwe ndi chaukhondo komanso chosavuta kuyeretsa.
Pakuti vinyo, viniga, soya msuzi ndi zosiyanasiyana amino zidulo, organic zidulo, shuga, mavitamini, organic zakuthupi monga mowa ndi ester ndi madzi osakaniza, ndipo utenga mtanda-otaya kusefera njira, kudzera mpope adzafunika zosefera. mipope yamadzimadzi mu kusefera nembanemba, nembanemba amasefedwa madzi kwa yomalizidwa mankhwala, osati kudzera madzi kuti tcheru chitoliro kubwerera ku malo omwewo.
Chifukwa cha kukhetsa kwamadzi okhazikika, mphamvu yayikulu yometa ubweya imatha kupangidwa pamwamba pa nembanemba, motero kuchepetsa kuipitsidwa kwa nembanemba.Chiŵerengero cha kuthamanga kwa madzi osungunuka ndi kuthamanga kwa chinthu chomalizidwa chikhoza kusinthidwa malinga ndi momwe zimakhalira madzi osefa kuti achepetse kuipitsidwa kwa nembanemba, ndipo madzi osungunuka amatha kubwerera kumalo ake oyambirira ndikuyambiranso. -lowetsani dongosolo la ultrafiltration la chithandizo cha kusefera.
3 Kuyeretsa System
Dongosolo loyeretsa la ulusi wopanda pake ndi gawo lofunikira la fyulutayo, chifukwa pamwamba pa nembanembayo idzaphimbidwa ndi zonyansa zosiyanasiyana zotsekeredwa, ndipo ngakhale mabowo a nembanemba adzatsekedwa ndi zonyansa zabwino, zomwe zingawononge ntchito yolekanitsa, motero zofunika kutsuka nembanemba mu nthawi.
Mfundo yoyeretsera ndi yakuti madzi oyeretsera (amene nthawi zambiri amasefedwa madzi oyera) amalowetsedwa mosinthana ndi mpope woyeretsera kudzera mupaipi kupita muzitsulo zopanda kanthu za fiber filtration kuti zichotse zonyansa pakhoma la nembanemba, ndipo madzi otayira amatulutsidwa kudzera muzitsulo zotayira. payipi.Makina oyeretsera a fyuluta amatha kutsukidwa m'njira zabwino komanso zoipa.
Kusamba kwabwino (monga kuthamangitsa kuthamanga) mwanjira inayake ndikutseka valavu ya kusefera, tsegulani valavu yotulutsira madzi, pampu imayamba kupanga nembanemba yamadzimadzi amadzimadzi amthupi, izi zimapangitsa kuti zingwe mkati ndi kunja kukakamiza mbali zonse zikhale zofanana, kusiyanitsa kwamphamvu. Kumamatira mu dothi lotayirira pamwamba pa nembanemba, kuonjezera magalimoto kachiwiri kusamba pamwamba, filimu yofewa pamwamba pa chiwerengero chachikulu cha zonyansa akhoza kuchotsedwa.
Backwash (kubwerera kumbuyo), njira yeniyeni ndikutseka valavu yotulutsa zosefera, kutsegula valavu yotulutsa zinyalala, kutsegula valavu yoyeretsera, kuyambitsa mpope woyeretsa, madzi oyeretsera m'thupi, kuchotsa zonyansa mu dzenje la khoma. .Pamene backwashing, chidwi ayenera kuperekedwa kwa ulamuliro wa kutsuka kuthamanga, backwashing kuthamanga ayenera kukhala zosakwana 0.2mpa, apo ayi n'zosavuta osokoneza filimuyo kapena kuwononga chomangira pamwamba za dzenje CHIKWANGWANI ndi binder ndi kutayikira mawonekedwe.
Ngakhale kuyeretsa kokhazikika komanso kosinthika kumatha kusunga liwiro la kusefera kwa nembanemba bwino, ndikuwonjezera nthawi yothamanga ya gawo la nembanemba, kuipitsidwa kwa nembanemba kumakulirakulira, ndipo liwiro la kusefera kwa membrane lidzachepanso.Kuti mubwezeretsenso kusefera kwa membrane, gawo la membrane liyenera kutsukidwa ndi mankhwala.Kuyeretsa mankhwala kumachitidwa ndi asidi poyamba ndiyeno alkali.Nthawi zambiri, 2% ya citric acid imagwiritsidwa ntchito pokolola, ndipo 1% ~ 2% NaOH imagwiritsidwa ntchito pochapa za alkali.
Nthawi yotumiza: Aug-06-2021