Kev faib tawm cov lim tawm
1 cov khoom siv xov paj, lim ntaub thiab sab cib ntaub los ntawm ntuj lossis hluavtaws fiber, hlau xov hlau, thiab lwm yam, yog cov nquag siv cov nruab nrab lim hauv kev lag luam kev tsim khoom. Cov ntaub ntawv zoo li pheej yig, yooj yim los ntxuav thiab hloov, thiab muaj qhov tsawg kawg me me ntawm 5 txog 65 .m. Ib qho-ntxaij lim dej ua los ntawm cov xov paj xws li polyamide, polyester lossis polypropylene yog maj mam hloov lwm cov ntaub ntawm cov ntaub npuag nrog cov qauv tsis sib xws, kev tiv thaiv corrosion thiab qaug zog tsis kam.
2 Cov khib nyiab loj heev, suav nrog cov bisque, sintered hlau lossis iav, lossis cov yas rau cov kav dej yas ua los ntawm cov hmoov zoo yas. Cov ntaub ntawv zoo li no tuaj yeem daig nrog qhov me me ntawm qhov loj me ntawm 1-3 andm thiab feem ntau siv los kho kev ncua uas muaj cov khoom me me.
3 Stacking nruab nrab, xws li cov ntaub ntawv cov pob zeb xws li xuab zeb, pob zeb, hluav taws kub thiab diatomaceous lub ntiaj teb, lossis txheej txheej ntawm cov xim tsis muaj ntaub xws li iav ntaub plaub. Nws feem ntau yog siv los kho kev ncua nrog cov khoom tsis tshua zoo, xws li cov dej haus hauv lub nroog thiab cov kua qab zib kom ua kom huv. Ntxiv rau, cov ntawv lim dej rau kev lag luam kuj tseem siv txuas nrog cov lim xov xwm saum toj no kom cuam tshuam cov feem me me ntawm cov khoom lag luam zoo hauv qhov kev ncua. Kev tsim khoom thiab kev thov ntawm polymeric ntxeem tau rau kev ua tau zoo tau tsim rau kev lim ntawm cov nplaim hluav taws xob kom tau cov dej ua kua ntau. Ib qho membrane tsim rau kev lim 0.1 txog 1 μm hais yog hu ua microporous membrane; daim nyias nyias tsim rau kev lim 0.01 txog 0.1 particlesm hais yog hu ua ultrafiltration membrane (saib cov membrane sib cais). Microporous membranes thiab ultrafiltration membranes yog siv dav hauv kev lag luam kws tshuaj, zaub mov thiab biochemical kev lag luam.