Raws li kev teeb tsa tseem ceeb hauv kev sib cais ntawm daim nyias nyias, tubular ultrafiltration membranes, nrog rau lawv cov qauv tsim tshwj xeeb thiab cov kua dej channel zoo, ua kom pom kev hloov pauv tau zoo thiab ruaj khov hauv kev tuav siab - tshem tawm cov khib nyiab, siab - viscosity, thiab cov kab mob yooj yim. Lawv lub hauv paus ntsiab lus tseem ceeb yog siv cov txheej membrane nrog pore qhov ntau thiab tsawg xws li nanometers mus rau micrometers nyob rau hauv siab rau sieve thiab khaws cov macromolecules, colloids, tshem tawm hais, thiab cov kab mob nyob rau hauv cov tshuaj, yog li ua kom tiav cov ntsiab lus, concentration, thiab fractionation ntawm pub.
Lub hauv paus qauv ntawm tubular ultrafiltration membrane muaj ib tug ntxeem tau lub raj thiab ib tug polymer sib cais membrane coated rau nws sab hauv los yog sab nrauv phab ntsa. Cov ntaub ntawv muaj xws li polysulfone, polyethersulfone, polypropylene, thiab ceramics. Cov zaub mov ntws los ntawm kev kub ceev hauv kev hla - ntws sab hauv lossis sab nraum lub raj. Nyob rau hauv lub siab, cov kuab tshuaj thiab me me -molecule solutes permeate los ntawm lub membrane phab ntsa mus rau hauv permeate sab, thaum lub retained khoom hais thiab polymers yog tawm nrog cov concentrate. Vim nws qhov dav dav ntws channel thiab siab pub tshaj tawm, tubular ultrafiltration daim nyias nyias muaj txiaj ntsig zoo tiv thaiv cov ntsiab lus polarization thiab membrane fouling, ua rau lawv tshwj xeeb tshaj yog tsim rau cov txheej txheem nyuaj uas muaj roj, flocculants, cov ntsiab lus siab, lossis siab viscosity.
Piv rau ib txwm muab kauv- qhov txhab los yog hollow fiber ntau ultrafiltration membranes, tubular ultrafiltration membranes muaj qhov zoo ntawm qhov muaj peev xwm tiv thaiv fouling thiab yooj yim ntawm kev tu thiab tu. Qhov dav ntws channel txo qhov kev pheej hmoo ntawm cov ntu ntu ntu, thiab txawm tias fouling tshwm sim, flux tuaj yeem rov qab los sai sai los ntawm kev ntxuav lub cev lossis tshuaj ntxuav, ua kom cov membrane lifespan. Tsis tas li ntawd, cov qauv tubular muaj qhov yuav tsum tau qis dua rau kev pub noj pretreatment thiab tuaj yeem ua haujlwm ruaj khov nyob rau hauv cov xwm txheej nrog kev hloov pauv loj hauv cov khib nyiab pov tseg.
Hauv kev siv, tubular ultrafiltration daim nyias nyias yog dav siv rau kev nthuav dav thiab kev xav hauv kev lag luam zaub mov thiab dej haus, xws li cov kua txiv hmab txiv ntoo, cov khoom siv mis nyuj, thiab cov nroj tsuag rho tawm; nyob rau hauv kev kho dej khib nyiab thiab reclaimed dej rov qab siv dua, kom tob purification ntawm biochemical effluent los yog industrial wastewater; nyob rau hauv biopharmaceutical teb, kom paub meej ntawm fermentation broths, protein concentration thiab sib cais; thiab nyob rau hauv cov tshuaj thiab mining industries, rau kev rov qab ntawm pigments, dyes, catalysts, thiab slurry concentration.
Nrog rau kev nce qib hauv cov khoom siv thev naus laus zis thiab kev ua kom zoo ntawm cov qauv tsim, tubular ultrafiltration membranes tau nthuav dav mus rau qhov siab dua, muaj zog tiv thaiv corrosion, thiab kub tsis kam. Lawv txoj haujlwm nyob rau hauv kev sib cais cov haujlwm nyuaj tau nce zuj zus, ua rau lawv yog ib qho ntawm cov thev naus laus zis tseem ceeb txhawb kev tsim khoom lag luam huv thiab kev siv cov peev txheej zoo.
