Flocculantsthiab coagulants ua lub luag haujlwm tseem ceeb hauv cov txheej txheem dej phwj tuaj, ua rau muaj txiaj ntsig zoo rau kev tshem tawm cov khib nyiab pov tseg, cov organic teeb meem, thiab lwm yam kab mob ntawm cov dej khib nyiab. Lawv qhov tseem ceeb yog nyob rau hauv lawv lub peev xwm los txhim kho kev ua tau zoo ntawm ntau txoj kev kho mob, thaum kawg ua rau cov dej huv uas tuaj yeem raug tso tawm kom nyab xeeb rau hauv ib puag ncig lossis rov qab siv rau ntau lub hom phiaj.
Coagulants feem ntau yog xa mus rau txhuas lossis ferric compounds, xws li txhuas sulfate, polyaluminium chloride thiab polyferric sulfate. Flocculants xa mus rau cov organic polymers, xws li polyacrylamide, poly (diallyldimethylammonium chloride), thiab lwm yam. Lawv tuaj yeem siv tus kheej lossis ua ke.
Particle Agglomeration: Cov dej phwj tuaj muaj ntau hom kev tshem tawm, nrog rau cov khoom organic, kab mob, thiab lwm yam impurities. Flocculants thiab coagulants pab txhawb kev sib sau ntawm cov khoom no mus rau hauv loj dua, denser flocs.Coagulantsua hauj lwm los ntawm neutralizing cov nqi tsis zoo ntawm cov khoom raug tshem tawm, cia lawv tuaj ua ke thiab tsim cov pawg loj. Flocculants, ntawm qhov tod tes, txhawb kev tsim cov flocs loj dua los ntawm kev sib txuas ntawm cov khoom los yog ua rau lawv sib tsoo thiab ua rau ib leeg.
Kev Txhim Kho Kev Txhim Kho: Thaum cov khoom tau raug agglomerated mus rau hauv cov flocs loj, lawv nyob yooj yim dua nyob rau hauv lub zog ntawm lub ntiajteb txawj nqus los yog lwm yam kev sib cais mechanisms. Cov txheej txheem no, hu ua sedimentation, yog ib kauj ruam tseem ceeb hauv kev kho dej phwj tuaj, vim nws tso cai rau tshem tawm cov khib nyiab thiab lwm yam impurities los ntawm cov dej khib nyiab. Flocculants thiab coagulants txhim khu kev daws teeb meem los ntawm kev nce qhov loj thiab qhov ntom ntawm flocs, yog li ua kom cov txheej txheem sedimentation thiab txhim kho qhov pom tseeb ntawm cov dej kho.
Enhanced Filtration: Hauv qee qhov chaw kho dej phwj tuaj, kev lim dej yog ua haujlwm raws li theem kev kho mob qib siab kom tshem tawm cov khib nyiab thiab cov impurities ntxiv. Flocculants thiab coagulants pab hauv kev pom los ntawm kev yooj yim tsim cov khoom loj dua uas yooj yim rau kev ntes thiab tshem tawm ntawm dej. Qhov no ua rau cov dej huv huv uas ua tau raws li cov qauv nruj nruj thiab tuaj yeem raug tso tawm los yog rov siv tau rau ntau lub hom phiaj xws li kev siv dej los yog kev lag luam.
Kev Tiv Thaiv Fouling: Hauv kev kho cov txheej txheem xws li membrane filtration thiab thim rov qab osmosis, fouling tshwm sim los ntawm tsub zuj zuj ntawm tshem tawm cov khib nyiab ntawm cov lim membranes tuaj yeem txo cov kev ua haujlwm ntawm lub cev thiab ua kom cov kev tu ncua. Flocculants thiab coagulants pab tiv thaiv fouling los ntawm kev txhawb nqa kev tshem tawm cov khoom ua ntej lawv mus txog theem pom. Qhov no yuav pab ua kom lub neej ntev ntawm cov ntaub so ntswg thiab tswj kev kho mob zoo ib yam dhau sijhawm.
Flocculants thiab coagulants yog qhov tseem ceeb ntawm kev kho dej phwj tuaj. Lawv lub peev xwm los txhawb cov particle agglomeration, txhim kho kev daws teeb meem thiab pom, txo kev siv tshuaj lom neeg, thiab tiv thaiv fouling ua rau lawv cov cuab yeej tseem ceeb rau kev ua kom muaj txiaj ntsig thiab kev ruaj khov ntawm kev kho dej phwj tuaj.
Post lub sij hawm: Apr-23-2024