Nanofiltration membranes tuaj yeem khaws cov ntaub ntawv nano-loj, thiab lwm yam ntxwv txiav txim siab txog cov xim tshwj xeeb ntawm nanofiltration membranes, uas tuaj yeem muab faib ua cov hauv qab no.
1. Daim ntawv thov ntawm nanofiltration membrane hauv kev kho dej mos.
Vim tias ob lub ions raug cuam tshuam zoo thiab tsis tshua muaj siab tuaj yeem ua haujlwm ntawm cov nqi dej siab, qhov iab yog desalinated, uas absorbs ib lub lag luam regenerative rau sodium daim ntaub ntawv. Nws lub ntsiab kom zoo dua yog tias nws tsis muaj kab mob thiab tsis tas yuav rov tsim dua tshiab. , Permeates dej thiab cov organic teeb meem, yooj yim, tsis siv qhov chaw, thiab lwm yam. Ntxiv mus, nws yog qhov ze rau txoj kev ntawm kev nqis peev thiab tus nqi, yog li muaj qhov tsim nyog thiab ib txwm ua haujlwm organic hauv daim teb no.
2. Daim ntawv thov ntawm nanofiltration membrane hauv dej purification.
Vim tias qhov seem ntawm cov dej qias neeg, qhov kev sim zoo ntawm cov tshuaj muaj kev txhawj xeeb tau ua pov thawj tias cov nanofiltration daim nyias nyias tuaj yeem tshem tawm cov khoom muaj kuab lom me ntsis, cov tshuaj tua kab mob, tshuaj tua kab, cov organic teeb meem, ntuj organic teeb meem, dej zoo, thiab sulfide ua nyob rau hauv lub txheej txheem tshuaj tua kab mob. Ntsev thiab nitrate, thiab lwm yam. Nws kuj muaj qhov zoo ntawm cov dej zoo, ruaj khov, tsis tshua muaj tshuaj lom neeg, yooj yim me me, txuag hluav taws xob, kev tswj hwm thiab kev saib xyuas, thiab tsis muaj paug tawm. Yog li ntawd, nanofiltration membranes yuav dhau los ua cov cuab yeej zoo tshaj plaws rau kev huv huv hauv lub xyoo pua 21st.
3. Daim ntawv thov ntawm nanofiltration membrane ntawm cov ntsev hauv qhov ntxeem tau.
Hauv kev tsim cov ntsev concentration hauv cov dej hauv av, hauv cov cheeb tsam uas muaj kev ua liaj ua teb, qhov ntsuas dej zoo nyob deb thiab ze, thiab rov qab osmosis thev naus laus zis tuaj yeem siv rau mine ntsev thiab lwm yam khoom. Tab sis vim hais tias cov dej rov qab tus nqi kuj siab. Tib lub sijhawm, kev kho cov condensate kuj yog ib qho teeb meem. Feem ntau, ib txoj kev sib pauv ion yog yuav tsum tau kho cov dej khib nyiab.
Ntawm qhov tod tes, ion exchange resins nyiam sib pauv divalent thiab high-valent ions. Yog hais tias cov ntsiab lus ntawm cov nqi siab nyob rau hauv kev txo cov kev daws teeb meem nce tus nqi ua, centralized regeneration yuav ua rau kom cov dej loj ua ntej. Cov ntsev ntsev ntau yog kho nrog nanofiltration membrane thiab tom qab ntawd kho nrog ion txauv txoj kev, lub sij hawm kho yuav txuas ntxiv los ntawm 2 mus rau 3 zaug.
Cov tshuaj muaj ib tug loj tus naj npawb ntawm inorganic ntsev. Tom qab cov sodium ion pauv kem, cov inorganic ions pauv los ntawm chlorides. Lub sijhawm no, cov ntsiab lus nitrate hauv dej ua tau raws li qhov xav tau ntawm cov ntsev inorganic. Nws qhov zoo yog: nws tuaj yeem permeate nitrates, thiab cov dej rov qab yog siab. Cov txheej txheem no tau siv dav hauv lub teb chaws Yelemees.
4. Daim ntawv thov ntawm nanofiltration membrane hauv kev kho nplooj ntoos.
Vim hais tias cov residue muaj ntau cov paj rwb, uas tuaj yeem nkag mus thiab nqus tau ib leeg, cov ntoo dub thiab cov ntoo agitated tsim nyob rau hauv cov txheej txheem ntawm absorbing dub ntoo thiab ntoo pulp yog absorbed los ntawm lub caij thiab nqus txoj kev vim muaj ntau yam organic teeb meem nyob rau hauv peat. raug them tsis zoo thiab yooj yim them zoo. Lub nanofiltration membrane raug rhuav tshem es tsis txhob ua rau muaj kuab paug loj. Piv txwv li, nanofiltration membranes yog siv los decolor cov kua khib nyiab uas tsim nyob rau hauv alkali extraction theem ntawm ntoo pulping, ribbon membrane, biomembrane thiab av lignin nyob rau hauv cov kua khib nyiab tuaj yeem cuam tshuam, thiab cov monovalent ion ions uas tsis tas yuav cuam tshuam. tuaj yeem rov zoo siab los ntawm daim nyias nyias, Tus nqi decolorization ntawm zaj duab xis nce mus txog 98%.
5. Daim ntawv thov ntawm nanofiltration membranes hauv kev kho dej phwj siab heev.
Membrane filtration kho kuj yog ib txoj hauv kev tseem ceeb kom paub txog kev rov ua dua cov dej phwj tuaj. Nws cov txheej txheem tseem ceeb suav nrog flocculation sedimentation, tshuaj tua kab mob, thiab lwm yam kev kho mob. Cov txheej txheem tom qab kho daim nyias nyias kuj suav nrog kev kho cov membrane. Ob leeg tuaj yeem siv dej kho.
Thib rau, nanofiltration membrane muaj cov ntaub ntawv hloov maj mam hauv kev kho mob.
Nyob rau hauv cov txheej txheem electroplating thiab alloy manufacturing txheej txheem, dej ntau yog feem ntau ntxuav vim yog cov ntsiab lus tooj liab ntau, xws li npib tsib xee, hlau, thiab zinc. Kev ua tiav rau hauv cov xuab zeb, yog siv tshuab nanofiltration membrane, ntau dua 90% ntawm qhov tuaj yeem rov qab los rau kev ua kom huv, thiab tus nqi tiag tiag tuaj yeem txo los ntawm 10 zaug kom txo tau rov qab siv dua.
Nyob rau hauv cov xwm txheej zoo, nanofiltration membranes kuj tuaj yeem ua tiav qhov sib cais ntawm cov hlau sib txawv hauv kev daws teeb meem, xws li kev sib cais ntawm Cd thiab Ni, ua ntej hloov mus rau hauv CdCl2 thiab NiCl2, thiab tom qab ntawd ntxiv NaCl los tsim cov khoom siv hluav taws xob thiab cov khoom tsis sib xws. Thaum cov concentration ntawm NaCl yog 01mol / L thaum lub complexion tshwm sim nyob rau hauv cov tshuaj, nws tsuas yog muaj nyob rau hauv daim ntawv ntawm CdCl2, tab sis cov npib tsib xee tsis muaj nyob rau hauv daim ntawv ua ke. Lub compound yog nyob rau hauv daim ntawv ntawm nickel ions. Cov txiaj ntsig zoo NF yog siv los cuam tshuam cov nickel ions kom pub dawb Flow los ntawm kev ua tiav kev sib cais ntawm cov hlau.
Post lub sij hawm: Jun-16-2021