In Kev Kho Mob Wastewater, Tshem tawm cov khib nyiab ntawm cov khib nyiab yog qhov txuas tseem ceeb. Tsis tsuas yog qhov no pab txhim kho cov dej zoo, nws tseem txo cov hnav thiab rhuav rau cov khoom siv thiab txhaws. Tam sim no, cov hau kev rau tshem tawm cov khib nyiab tshem tawm tsuas yog suav nrog cov sedimentation, pom, flotation thiab flocculation. Ntawm lawv, cov kev flocculation txoj kev tau siv dav siv vim nws cov kev ua haujlwm siab thiab kev lag luam. Hauv txoj kev no, cov polymer hu polydadmac ua lub luag haujlwm tseem ceeb.
Polydadmac, nws lub npe tag nrho yog poly diall dimethyl ammonium chloride, yog lub siab molecular polymer. Nws yog tsuas yog tsim los ntawm polymerizing diallasmonium chloride monomer los ntawm txoj saw kev loj hlob polymerization. Cov tshuaj tiv thaiv polymerization feem ntau tau nqa tawm hauv qab ntawm catalysis ntawm kua qaub lossis ntsev, thiab ib txoj kev tswj kab polymer tuaj yeem tau txais. Nws feem ntau yog kua daj lossis dawb rau hmoov daj lossis cov granules. Nws muaj cov solubility zoo thiab tuaj yeem yog tusyees dispersed hauv cov kev daws teeb meem aqueous.
PolydadmacMuaj tus nqi them siab ntau thiab feem ntau coj los ua lub cationic polymer. Qhov no txhais tau tias nws tuaj yeem adsorb tsis zoo cov khib nyiab thiab colloidal hais hauv dej los ua cov flocs loj, yog li ua tiav kev tshem tawm cov khib nyiab zoo. Polydadmac feem ntau yog siv los ua cov flocculant thiab yog dav siv nyob rau hauv ntau yam dej kho cua, suav nrog kev kho kom dej khib nyiab thiab nroog dej phwj. Nws tuaj yeem ua kom sai sai ua cov flocs sai sai thiab ntom ntom hauv dej khib nyiab thiab ua kom pom zoo tshem cov khib nyiab, cov hlau hnyav thiab cov organic paug.
Hauv kev kho mob ntawm cov quav mis los ntawm pulp thiab cov ntawv mills, kev txiav txim mechanism ntawm PolyDadmac yog qhov tseem ceeb ntawm cov hauv qab no:
Cov Neuteration: Vim tias PolyDADMAC muaj cov txiaj ntsig zoo, nws tuaj yeem ua rau cov khib nyiab sai sai, thiab tom qab ntawd ua ke los ua cov flocs ntawm cov loj.
Sweeping kev txiav txim: raws li Floc yog tsim, nws yuav kos cov khib nyiab thiab colloidal hais hauv cov dej ntas rau hauv floc, ua tiav cov kua-kua sib cais los ntawm kev ua kom 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 siv dej kom huv, siv PolyDADMAC los kho cov pulp thiab cov ntaub ntawv zeb pov tseg muaj cov txiaj ntsig hauv qab no:
Cov nqi siab ntau: Polydadmac tus nqi siab them rau nws kom tau zoo dua
Muaj zog yoog tau: Polydadmac muaj cov kev kho mob zoo ntawm ntau hom ntawm cov ntsws thiab cov ntawv pov tseg thiab tsis cuam tshuam los ntawm dej zoo hloov pauv.
High efficiency thiab kev noj haus tsawg: siv polydadmac liFlocculantThiab Cutterulant tuaj yeem txo qis ntau npaum li cas cov tshuaj chemical, thaum txhim kho kev kho mob thiab txo cov nqi kev ua haujlwm.
Tus phooj ywg ib puag ncig: Polydadmac yog cationic polymer. Cov floc ua tom qab siv tsis yooj yim decomposed rau hauv cov tshuaj tiv thaiv kev ua yeeb yam thiab yog ib puag ncig phooj ywg.
Hauv kev xaus, Polydadmac, raws li aHigh Molecular Polymer, muaj qhov zoo ntawm kev ua haujlwm siab, tsawg noj, thiab ua ib puag ncig kev ua phooj ywg hauv kev kho cov tshuaj pov tseg los ntawm pulp thiab cov ntawv mills. Lub sijhawm thaum kev tiv thaiv ib puag ncig yog ib qho nyuaj rau tiv thaiv, polydadmac yog cov tshuaj nrov uas tau ua kom cov yam ntxwv ntawm ib puag ncig ntawm cov khoom lag luam ib puag ncig.
Lub Sijhawm Post: Sep-12-2024