In kev kho dej khib nyiab, kev tshem tawm cov khib nyiab tshem tawm yog qhov txuas tseem ceeb. Tsis tsuas yog qhov no pab txhim kho cov dej zoo, nws kuj txo qhov hnav thiab tsim kua muag ntawm cov khoom siv thiab clogging. Tam sim no, txoj kev tshem tawm cov khib nyiab pov tseg feem ntau suav nrog sedimentation, pom, flotation thiab flocculation. Ntawm lawv, txoj kev flocculation yog dav siv vim nws cov kev ua haujlwm siab thiab kev lag luam. Nyob rau hauv txoj kev no, ib tug polymer hu ua PolyDADMAC plays lub luag hauj lwm tseem ceeb.
PolyDADMAC, nws lub npe tag nrho yog Poly diallyl dimethyl ammonium chloride, yog lub siab molecular polymer. Nws yog tsim los ntawm polymerizing diallyldimethylammonium chloride monomer los ntawm saw kev loj hlob polymerization. Cov tshuaj tiv thaiv polymerization no feem ntau yog ua raws li catalysis ntawm acid lossis ntsev, thiab cov qauv linear polymer tuaj yeem tau txais. Nws feem ntau yog yellowish kua los yog dawb rau yellowish hmoov los yog granules. Nws muaj qhov zoo solubility thiab tuaj yeem sib npaug sib npaug hauv cov tshuaj aqueous.
PolyDADMACmuaj ib tug high charge ceev thiab feem ntau coj raws li ib tug cationic polymer. Qhov no txhais tau hais tias nws muaj peev xwm adsorb tsis zoo nqi suspended solids thiab colloidal hais nyob rau hauv dej los tsim loj flocs, yog li ua tau zoo tshem tawm ntawm tshem tawm cov khib nyiab. PolyDADMAC feem ntau yog siv los ua flocculant thiab coagulant thiab yog siv dav hauv ntau yam kev kho dej, suav nrog kev kho dej khib nyiab thiab kev kho dej hauv nroog. Nws tuaj yeem tsim cov flocs loj thiab ntom hauv cov dej khib nyiab thiab tshem tawm cov khib nyiab pov tseg, cov hlau hnyav ions thiab cov pa phem.
Hauv kev kho cov dej khib nyiab los ntawm cov ntawv thiab cov ntawv zeb, cov txheej txheem ua haujlwm ntawm PolyDADMAC feem ntau cuam tshuam nrog cov hauv qab no:
Them neutralization: Vim tias PolyDADMAC muaj cov nqi them siab, nws tuaj yeem nqus tau sai sai ntawm cov khoom tsis zoo thiab cov colloidal hais, ua rau lawv poob kev ruaj ntseg los ntawm kev them nqi nruab nrab, thiab tom qab ntawd sib sau ua cov flocs ntawm cov khoom loj.
Sweeping action: Raws li cov floc tsim, nws yuav rub cov khib nyiab thiab cov khoom colloidal hauv cov dej khib nyiab rau hauv floc, ua tiav cov kua dej sib cais los ntawm kev ua haujlwm ntawm lub cev.
Net-capture effect: high-molecular polymers tuaj yeem tsim cov qauv siv hluav taws xob hauv nws zoo li Nuv ntses Net, yog li ua tiav kev sib cais.
Piv nrog rau lwm txoj kev kho dej khib nyiab, siv PolyDADMAC los kho cov ntaub so ntswg thiab cov ntawv zeb khib nyiab muaj qhov zoo hauv qab no:
High charge density: PolyDADMAC lub high charge density enables nws mus zoo dua absorbed tsis zoo nqi suspended solids thiab colloidal hais, txhim kho kev kho mob efficiency.
Muaj zog yoog raws: PolyDADMAC muaj kev kho mob zoo rau ntau yam ntawm cov ntaub so ntswg thiab cov ntawv pov tseg thiab tsis cuam tshuam los ntawm cov dej tsis zoo.
High efficiency thiab tsawg noj: Siv PolyDADMAC liFlocculantthiab coagulant tuaj yeem txo qhov ntau npaum ntawm cov tshuaj, thaum txhim kho kev kho mob thiab txo cov nqi khiav lag luam.
Ib puag ncig tus phooj ywg: PolyDADMAC yog cationic polymer. Cov floc uas tsim tom qab siv tsis yooj yim decomposed rau hauv cov teeb meem tshuaj thiab yog ib puag ncig tus phooj ywg.
Hauv kev xaus, PolyDADMAC, raws li aHigh Molecular Polymer, muaj qhov zoo ntawm kev ua haujlwm siab, kev siv tsawg, thiab ib puag ncig tus phooj ywg, thiab ua lub luag haujlwm tseem ceeb hauv kev kho cov dej khib nyiab los ntawm cov ntawv thiab cov ntawv mills. Nyob rau lub sijhawm thaum tus qauv ntawm kev tiv thaiv ib puag ncig nyuaj rau tiv thaiv, PolyDADMAC yog cov khoom siv tshuaj lom neeg uas ua tau raws li cov yam ntxwv ntawm cov khoom zoo ib puag ncig.
Post lub sij hawm: Sep-12-2024