Aluminium sulfate, tseem hu ua alum, feem ntau yog siv rau hauv cov txheej txheem kho dej los txhim kho cov dej zoo. Thaum ntxiv rau dej, aluminium sulfate ua haujlwm ntau yam tseem ceeb:
Coagulation:Aluminium sulfate ua raws li coagulant. Nws destabilizes suspended hais thiab impurities nyob rau hauv dej, ua rau lawv clump ua ke los yog coagulate. Cov txheej txheem no ua rau cov khoom loj dua thiab hnyav dua, yooj yim rau lawv tshem tawm ntawm dej.
Flocculation:Tom qab coagulation, aluminium sulfate txhawb kev flocculation, qhov twg cov coagulated hais ua loj dua flocs. Cov flocs no tuaj yeem sib cais yooj yim dua los ntawm dej.
Dej nag:Cov coagulated thiab flocculated hais nyob rau hauv qab ntawm lub tank kho vim lawv loj thiab hnyav. Cov nag lossis daus ntawm impurities no ua rau cov dej ntshiab dua.
Kev tshem tawm cov kab mob:Aluminium sulfate tuaj yeem pab tshem tawm qee yam kab mob, nrog rau cov kab mob thiab qee cov kab mob, los ntawm coagulating thiab tshem tawm ntawm cov dej.
Kev tshem tawm xim:Nyob rau hauv rooj plaub uas cov dej muaj cov xim uas ua rau xim, aluminium sulfate tuaj yeem pab txo cov xim los ntawm coagulating thiab tshem tawm cov tebchaw ua lub luag haujlwm rau kev hloov xim.
Turbidity txo:Nws muaj txiaj ntsig zoo hauv kev txo cov turbidity hauv dej, uas txhim kho qhov pom tseeb thiab pom qhov pom ntawm cov dej.
Zuag qhia tag nrho, aluminium sulfate yog ib qho tseem ceeb hauv cov txheej txheem ntawm kev kho dej, pab tshem tawm cov khoom tshem tawm, impurities, thiab cov kab mob, thaum kawg ua rau cov dej nyab xeeb thiab tsim nyog rau ntau yam kev siv, suav nrog cov dej haus thiab cov txheej txheem kev lag luam.