Li-membrane tsa nanofiltration hangata li na le li-membrane tse qosoang, tse nang le litefello tse mpe ka holim'a metsi, tse ka thibelang li-cations tse nang le li-valence tse fetang tse peli metsing le ho boloka li-ion tse mononovalent (joalo ka li-ion tsa sodium le li-ion tsa potassium).Ka hona, li-membrane tsa nanofiltration li boloka liminerale tse ling ka metsing.Ntho ea bohlokoa.
Har'a tse tloaelehileng tse silafatsang heavy metal, arsenic haholo-holo e teng ka metsing e le trivalent arsenic ion le pentavalent arsenic ion;chromium e fumaneha haholo ka sebopeho sa li-ion tse trivalent le tse hexavalent ka tlhaho.Kahoo lera la nanofiltration le lona le ka sefa boholo ba litšepe tse boima.E ka boela ea tlosa karolo ea calcium le magnesium, kahoo e na le phello e itseng ho nolofatsa metsi a thata.
Ka nako e ts'oanang, li-membrane tsa nanofiltration li ka fokotsa lintho tse phelang metsing le li-carcinogens tse kang trihalomethanes tse hlahisoang nakong ea chlorination le disinfection ea metsi a nooang.
Kokoana e nyenyane ka ho fetisisa e tsejoang e na le bophara ba 18nm-22nm (data e tsoang Wikipedia).Ha ho bapisoa le boholo ba pore ea li-membrane tsa nanofiltration tsa 1-2nm, libaktheria le likokoana-hloko li batla li le khōlō, kahoo li-membrane tsa nanofiltration li ka atleha Ho tlosoa ha libaktheria le likokoana-hloko ha ho bonahale ho le thata ho nahana.
Molao-motheo o sebetsang oa lera la nanofiltration o batla o tšoana le oa lera la reverse osmosis.Khatello eo e nang le eona e tlase ho feta ea lera la reverse osmosis, kahoo e hlahisa metsi a litšila a fokolang ho feta lera la reverse osmosis.
Ho ba e mong oa bahlahisi ba pele ba li-membrane tsa RO naheng ea China, HIDTMe beha lihlahisoa tse ntle ka ho fetisisa har'a indasteri ea membrane ea China RO.Li-membrane tsa nanofiltration li ka sefa li-ion tsa tšepe ka holim'a li-valence tse peli ka metsing (ka kakaretso, litaba tsa li-ion tsa monovalent ka metsing li nyenyane haholo, 'me kaofela ke liminerale tse molemo ho' mele oa motho), ha khatello ea ts'ebetso ea li-membrane tsa nanofiltration e tlaase haholo ho feta. e khutlisetsa morao li-membrane tsa osmosis, le tlhahiso ea metsi E phahame haholo ho feta li-membrane tsa reverse osmosis 'me e ka tlosa ka ho feletseng li-ion tsa calcium le magnesium tseo ho leng bonolo ho li tšela ka metsing.Tšebeliso ea li-membrane tsa nanofiltration e lekane ho finyella litlhoko tsa metsi a nooang.
- Ke sehlahisoa se ikhethileng sa nanofiltration membrane e etselitsoeng ka ho khetheha bakeng sa ho se ke ha e-ba le mosi le tšebeliso ea lisebelisoa.
- Lebelo la ho hana li-ion tse ngata li phahame, tekanyo ea ho hana li-ion tsa monovalent e tlaase, 'me ho fokotsa boima ba molek'hule ho nepahetse.
- E boetse e loketse lithethefatsi tse nyenyane tsa ho hlahloba Ho itšehla thajana le ho Hloekisa.
- Moralo o khethehileng oa marang-rang o amoheloa ka har'a mocha oa phallo e kenang e le hore sehlahisoa se be le melemo e mengata ea ho hanyetsa tšilafalo le ho hloekisa habonolo.
Hlokomela:
1. Litekanyetso tsa ts'ebetso li lekantsoe ka mor'a hore tsamaiso e sebetse ka mokhoa o tsitsitseng ka metsotso e 30.2. Phapang e fapaneng ea tlhahiso ea metsi ke ± 15%.
2.1.5 Litaba tsa bohlokoa
Ho qala ho nepahetseng ho bohlokoa bakeng sa ts'ebetso e tsitsitseng ea nanofiltration system.Pele tsamaiso ea nanofiltration e senyeha kapa e qala hape tlas'a nako e telele-
boemo ba ho koala ha nako, lisebelisoa tse fapaneng, limithara, le boleng ba metsi li tlameha ho hlahlojoa le ho lokisoa ho netefatsa hore maemo ohle a kopana le litlhophiso kapa boleng bo behiloeng.
ka mor'a ho romelloa.Ka kopo sheba bukana ea lihlahisoa bakeng sa mehato e khethehileng ea ts'ebetso le litemoso.
E le ho thibela lera hore le se ke la haroa ke likaroloana tse thata, ho lokela ho sebelisoa sefahla sa ts'ireletso sa 5μm ntle le ho hlatsuoa ka metsing.
ho kena.Ha mahloriso a silicon a phahame haholo, ho ka sebelisoa filthara ea tšireletso ea 1μm.Khatello e lehlakoreng la tlhahiso ea metsi ea mojule oa membrane e tlameha
e se be e phahameng ho feta khatello ea lehlakoreng la metsi a fepa ka nako leha e le efe, 'me khatello ea morao e tsitsitseng e tlameha ho ba ka tlase ho 5 psi.
HID™ NF Membranes e sebelisoa haholo ho:
1. Meriana ea lithibela-mafu e tsepamisitsoe mochesong o tlaase ho tlosa molora.
2. Dae desalination, concentration, replacement salting out, acid precipitation.
3. Ho tsepamisa mohopolo oa mokelikeli o mosesaane oa tsoekere, ho hloekisoa ha oligosaccharides.
4. Ho ntšoa le ho tsepamisa mohopolo oa metsoako e sebetsang ea biologically.
5. Ho hloekisa metsi a litšila le ho a sebelisa hape.
6. Ho tsepamisa maikutlo le ho hloekisa liprotheine tse sa tšoaneng, li-amino acid, livithamine, lebese, joala, soy sauce, li-condiments, joalo-joalo.
