1. Dab tsi yog flocculants, coagulants thiab conditioners?
Cov neeg sawv cev no tuaj yeem muab faib ua pawg hauv qab no raws li kev siv sib txawv hauv kev kho sludge xovxwm pom:
Flocculant: qee zaum hu ua coagulant, nws tuaj yeem siv los ua ib txoj hauv kev los ntxiv dag zog rau cov kua dej sib cais, siv rau hauv thawj cov dej xau tank, theem nrab sedimentation tank, flotation tank thiab kev kho tertiary lossis cov txheej txheem kev kho mob siab heev.
Coagulation pab: Pab flocculants ua lub luag haujlwm los txhim kho cov nyhuv coagulation.
Conditioner: Kuj tseem hu ua dewatering tus neeg sawv cev, nws yog siv los kho cov sludge seem ua ntej dewatering, thiab nws cov ntau yam muaj xws li qee cov flocculants uas tau hais los saum toj no thiab coagulants.
2. Flocculant
Flocculants yog ib chav kawm ntawm cov khoom uas tuaj yeem txo lossis tshem tawm cov nag lossis daus ruaj khov thiab polymerization ruaj khov ntawm cov khoom tawg hauv dej, thiab ua kom cov khoom tawg yooj yim agglomerate thiab flocculate rau hauv aggregates rau kev tshem tawm.
Raws li cov tshuaj muaj pes tsawg leeg, flocculants tuaj yeem muab faib ua inorganic flocculants thiab organic flocculants.
Inorganic flocculants
Cov tsoos inorganic flocculants yog tsawg molecular txhuas ntsev thiab hlau ntsev.Aluminium ntsev feem ntau suav nrog txhuas sulfate (AL2 (SO4) 3∙18H2O), alum (AL2 (SO4) 3∙K2SO4∙24H2O), sodium aluminate (NaALO3), hlau ntsev feem ntau suav nrog ferric chloride (FeCL3∙6H20), ferrous sulfate ( FeSO4∙6H20 thiab ferric sulfate (Fe2 (SO4) 3∙2H20).
Feem ntau hais lus, inorganic flocculants muaj cov yam ntxwv ntawm kev yooj yim ntawm cov khoom siv raw, kev npaj yooj yim, tus nqi qis, thiab kev kho mob me ntsis, yog li lawv tau siv dav hauv kev kho dej.
Inorganic polymer flocculant
Cov hydroxyl thiab oxygen-raws li polymers ntawm Al (III) thiab Fe (III) yuav muab sib xyaw ua ke ntxiv, uas yuav khaws cia rau hauv cov kua dej hauv qee qhov xwm txheej, thiab lawv qhov loj me yuav nyob rau hauv qhov ntau nanometer.Qhov tshwm sim ntawm qhov ntau npaum li cas.
Muab piv rau lawv cov tshuaj tiv thaiv thiab polymerization tus nqi, cov tshuaj tiv thaiv ntawm aluminium polymer yog me me thiab cov duab yog ruaj khov dua, thaum lub hydrolyzed polymer ntawm hlau reacts sai thiab yooj yim poob stability thiab precipitates.
Qhov zoo ntawm inorganic polymer flocculants tau xav txog tias nws muaj txiaj ntsig zoo dua li cov tshuaj flocculants xws li txhuas sulfate thiab ferric chloride, thiab pheej yig dua li cov organic polymer flocculants.Tam sim no Polyaluminium chloride tau ua tiav siv ntau yam txheej txheem kev kho dej, cov dej khib nyiab thiab cov dej phwj hauv nroog, suav nrog kev kho ua ntej, kev kho nruab nrab thiab kev kho mob siab heev, thiab tau maj mam dhau los ua lub hauv paus flocculant.Txawm li cas los xij, nyob rau hauv cov nqe lus ntawm morphology, degree ntawm polymerization thiab coj coagulation-flocculation nyhuv, inorganic polymer flocculants tseem nyob rau hauv ib txoj hauj lwm ntawm tsoos hlau ntsev flocculants thiab organic polymer flocculants.
Polyaluminium chloride, pac, msds policloruro de aluminio, cas no 1327 41 9, policloruro de aluminio, pac tshuaj rau kev kho dej, poly aluminium chloride, hu ua PAC, muaj cov tshuaj formula ALn(OH)mCL3n-m.PAC yog ib qho khoom siv hluav taws xob ntau uas tuaj yeem txo cov nqi colloidal ntawm av nplaum zoo li impurities (ntau cov nqi tsis zoo) hauv dej.Vim qhov loj ntawm cov txheeb ze molecular loj thiab muaj zog adsorption muaj peev xwm, cov flocs tsim yog loj, thiab cov flocculation thiab sedimentation kev ua tau zoo dua lwm yam flocculants.
poly aluminium chloride muaj qib siab ntawm polymerization, thiab nrawm nrawm tom qab ntxiv tuaj yeem txo lub sijhawm tsim floc.poly aluminium chloride PAC tsis tshua muaj kev cuam tshuam los ntawm dej kub, thiab nws ua haujlwm zoo thaum dej kub tsawg.Nws txo cov pH tus nqi ntawm cov dej tsawg, thiab cov pH siv tau dav (yuav siv tau nyob rau hauv thaj tsam ntawm pH = 5 ~ 9), yog li nws tsis tas yuav ntxiv alkaline tus neeg sawv cev.Qhov ntau npaum ntawm PAC yog me me, cov av nkos uas tsim los kuj yog me me, thiab kev siv, kev tswj thiab kev ua haujlwm yooj yim dua, thiab nws kuj tsis tshua muaj corrosive rau cov khoom siv thiab cov kav dej.Yog li ntawd, PAC muaj lub siab nyiam maj mam hloov txhuas sulfate hauv kev kho dej, thiab nws qhov tsis zoo yog tias tus nqi siab dua li cov tshuaj flocculants.
Tsis tas li ntawd, los ntawm qhov pom ntawm cov tshuaj chemistry,PAC poly aluminium chlorideyog cov khoom nruab nrab kinetic ntawm cov txheej txheem hydrolysis-polymerization- nag lossis daus txheej txheem ntawm txhuas ntsev, uas yog thermodynamically tsis ruaj khov.Feem ntau, cov khoom ua kua PAC yuav tsum tau siv rau lub sijhawm luv luv (cov khoom lag luam muaj kev ua haujlwm ruaj khov)., nws tuaj yeem khaws cia rau lub sijhawm ntev).Ntxiv qee cov ntsev inorganic (xws li CaCl2, MnCl2, thiab lwm yam) los yog macromolecules (xws li polyvinyl cawv, polyacrylamide, thiab lwm yam) tuaj yeem txhim kho kev ruaj ntseg ntawm PAC, thiab tuaj yeem ua kom muaj peev xwm ua kom muaj kev sib koom ua ke.
Nyob rau hauv cov nqe lus ntawm cov txheej txheem ntau lawm, ib los yog ob peb txawv anions (xws li SO42-, PO43-, thiab lwm yam) yog qhia nyob rau hauv lub manufacturing txheej txheem ntawm PAC, thiab lub polymer qauv thiab morphological tis yuav hloov mus rau ib tug tej yam raws li polymerization, yog li ntawd. txhim kho qhov ruaj khov thiab ua tau zoo ntawm PAC;Yog hais tias lwm yam cationic Cheebtsam, xws li Fe3+, yog qhia nyob rau hauv lub manufacturing txheej txheem ntawm PAC ua Al3+ thiab Fe3+ staggered hydrolytically polymerized, composite flocculant polyaluminium hlau yuav tau.
Organic polymer flocculant
Synthetic organic polymer flocculants feem ntau yog polypropylene thiab polyethylene tshuaj, xws li polyacrylamide thiab polyethyleneimine.Cov flocculants no yog tag nrho cov dej-soluble linear macromolecules, txhua macromolecule muaj ntau qhov rov ua dua tshiab uas muaj pawg them, yog li lawv tseem hu ua polyelectrolytes.Cov uas muaj cov pab pawg raug them zoo yog cationic polyelectrolytes, thiab cov uas muaj cov pab pawg tsis zoo yog anionic polyelectrolytes, uas tsis muaj cov pab pawg zoo lossis tsis zoo, thiab hu ua nonionic polyelectrolytes.
Tam sim no, feem ntau siv polymer flocculants yog anionic, thiab lawv tsuas tuaj yeem ua lub luag haujlwm hauv kev pab cov coagulation ntawm qhov tsis zoo ntawm cov khoom tsis zoo colloidal impurities hauv dej.Feem ntau nws tsis tuaj yeem siv ib leeg, tab sis yog siv ua ke nrog txhuas ntsev thiab hlau ntsev.Cationic flocculants tuaj yeem ua lub luag haujlwm ntawm coagulation thiab flocculation tib lub sijhawm thiab siv ib leeg, yog li lawv tau tsim sai heev.
Tam sim no, polyacrylamide uas tsis yog-ionic polymers tau siv ntau zaus hauv kuv lub tebchaws, uas feem ntau siv ua ke nrog hlau thiab txhuas ntsev.Qhov hluav taws xob neutralization nyhuv ntawm hlau thiab txhuas ntsev ntawm colloidal hais thiab cov zoo heev flocculation muaj nuj nqi ntawm polymer flocculants yog siv kom tau txais kev txaus siab kho mob.Polyacrylamide muaj cov yam ntxwv ntawm kev siv tsawg dua, ceev coagulation ceev, thiab loj thiab tawv flocs hauv kev siv.80% ntawm cov hluavtaws organic polymer flocculants tam sim no tsim nyob rau hauv kuv lub teb chaws yog cov khoom no.
Polyacrylamide PAM, polyelectrolyte siv, polyelectrolyte cationic hmoov, cationic polyelectrolyte, cationic polymer, cationic polyacrylamide yog cov feem ntau siv hluavtaws organic polymer flocculant, polyelectrolyte, thiab qee zaum siv los ua coagulant.Cov khoom siv raw ntawm polyacrylamide yog polyacrylonitrile CH2 = CHCN.Hauv qee qhov xwm txheej, acrylonitrile yog hydrolyzed los ua acrylamide, thiab acrylamide yog tom qab ntawd raug tshem tawm polymerization kom tau txais polyacrylamide.Polyacrylamide yog dej-soluble resin, thiab cov khoom yog granular khoom thiab viscous aqueous tov nrog ib tug tej yam concentration.
Daim ntawv uas twb muaj lawm ntawm polyacrylamide hauv dej yog random coil.Vim hais tias cov random coil muaj qee qhov me me thiab qee pawg amide ntawm nws qhov chaw, nws tuaj yeem ua si ib qho kev sib txuas sib txuas thiab muaj peev xwm adsorption, uas yog, nws muaj qee qhov me me.qee qhov muaj peev xwm flocculation.
Txawm li cas los xij, vim tias cov saw ntev ntawm polyacrylamide yog curled rau hauv ib lub kauj, nws txoj kab txuas me me.Tom qab ob pawg amide txuas nrog, nws yog qhov sib npaug ntawm qhov kev tshem tawm ntawm kev sib cuam tshuam thiab kev poob ntawm ob qhov chaw adsorption.Tsis tas li ntawd, qee cov pab pawg amide tau qhwv hauv cov qauv coil Sab hauv nws tsis tuaj yeem tiv tauj thiab adsorb cov impurity hais hauv dej, yog li nws lub peev xwm adsorption tsis tuaj yeem ua tiav.
Txhawm rau cais cov pawg amide txuas ntxiv thiab nthuav tawm cov pab pawg zais amide mus rau sab nraud, tib neeg sim txuas ntxiv cov random coil kom tsim nyog, thiab txawm tias sim ntxiv qee pawg nrog cations lossis anions rau cov saw ntev molecular, thaum txhim kho cov adsorption thiab bridging muaj peev xwm thiab cov nyhuv ntawm hluav taws xob neutralization thiab compression ntawm hluav taws xob ob txheej.Nyob rau hauv no txoj kev, ib tug series ntawm polyacrylamide flocculants los yog coagulants nrog txawv zog yog muab los ntawm lub hauv paus ntawm PAM.
Hauv kev kho coagulation ntawm cov dej khib nyiab, qee zaum ib qho flocculant tsis tuaj yeem ua tiav cov txiaj ntsig zoo coagulation, thiab feem ntau yuav tsum tau ntxiv qee cov neeg ua haujlwm pab txhawm rau txhim kho cov nyhuv coagulation.Tus neeg sawv cev pabcuam no hu ua coagulation aid.Feem ntau siv coagulants yog chlorine, txiv qaub, activated silicic acid, pob txha kua nplaum thiab sodium alginate, activated carbon thiab ntau yam av nplaum.
Qee cov coagulants lawv tus kheej tsis ua lub luag haujlwm hauv coagulation, tab sis los ntawm kev kho thiab txhim kho coagulation tej yam kev mob, lawv ua lub luag hauj lwm ntawm pab flocculants los tsim coagulation teebmeem.Qee cov coagulants koom nrog kev tsim cov flocs, txhim kho cov qauv ntawm cov flocs, thiab tuaj yeem ua rau cov nplua thiab xoob flocs uas tsim los ntawm inorganic flocculants rau hauv ntxhib thiab nruj flocs.
4. Txias
Conditioners, tseem hu ua dehydrating agents, yuav muab faib ua ob pawg: inorganic conditioners thiab organic conditioners.Inorganic conditioners yog feem ntau haum rau lub tshuab nqus tsev pom thiab phaj thiab thav duab pom cov sludge, thaum cov organic conditioners yog haum rau centrifugal dewatering thiab siv lim dewatering ntawm sludge.
5. kev sib raug zoo ntawmflocculants, coagulants, thiab conditioners
Tus neeg saib xyuas lub cev qhuav dej yog tus neeg sawv cev ntxiv ua ntej cov sludge yog lub cev qhuav dej, uas yog, tus neeg ua haujlwm txias ntawm cov sludge, yog li lub ntsiab lus ntawm lub cev qhuav dej thiab tus neeg ua haujlwm txias yog tib yam.Qhov ntau npaum ntawm dewatering tus neeg saib xyuas lossis tus neeg saib xyuas txias feem ntau yog xam raws li feem pua ntawm qhov hnyav ntawm cov khib nyiab qhuav ntawm cov sludge.
Flocculants yog siv los tshem tawm cov khib nyiab hauv cov dej phwj tuaj thiab yog cov neeg ua haujlwm tseem ceeb hauv kev kho dej.Qhov ntau npaum ntawm flocculant feem ntau qhia los ntawm tus nqi ntxiv hauv chav tsev ntim ntawm cov dej yuav tsum tau kho.
Qhov ntau npaum ntawm tus neeg ua kom lub cev qhuav dej (tus neeg ua haujlwm txias), flocculant, thiab coagulation pab tuaj yeem hu ua qhov ntau npaum.Tib tus neeg sawv cev tuaj yeem siv los ua flocculant hauv kev kho cov dej phwj tuaj, thiab tuaj yeem siv los ua cov tshuaj txias lossis dewatering tus neeg saib xyuas hauv kev kho cov sludge ntau dhau.
Coagulants hu ua coagulants thaum lawv siv los ua flocculants hauv kev kho dej.Tib coagulants feem ntau tsis yog hu ua coagulants hauv kev kho cov sludge ntau dhau, tab sis raug xa mus rau cov tshuaj txias lossis cov dej ua kom lub cev qhuav dej.
Thaum siv aflocculant, txij li tus nqi ntawm cov khoom raug tshem tawm hauv dej yog txwv, txhawm rau ua tiav kev sib cuag ntawm flocculant thiab cov khoom raug tshem tawm, cov khoom sib xyaw thiab cov tshuaj tiv thaiv yuav tsum tau nruab nrog lub sijhawm txaus.Piv txwv li, sib tov yuav siv sij hawm kaum vib nas this mus rau ob peb feeb, Cov tshuaj tiv thaiv yuav tsum tau 15 mus rau 30 feeb.Thaum cov sludge dewatered, nws feem ntau tsuas yog siv ob peb kaum vib nas this los ntawm thaum lub tshuab txias ntxiv rau cov sludge nkag mus rau hauv lub tshuab dewatering, uas yog, tsuas yog cov txheej txheem sib npaug sib npaug rau flocculant, thiab tsis muaj lub sijhawm tshuaj tiv thaiv, thiab kev paub dhau los. kuj qhia tau hais tias qhov txias txias yuav nce nrog nyob.txo qis lub sijhawm.
Cov cuab yeej ua haujlwm zoo, cov neeg tsim khoom tsim nyog, thiab cov neeg muab kev pabcuam zoo tom qab muag;Peb kuj yog ib lub koom haum loj loj ntawm tus txij nkawm thiab cov menyuam, txhua tus neeg ua haujlwm nrog tus nqi koom nrog "kev sib koom ua ke, kev mob siab rau, kev ua siab ntev" rau 100% Original Hoobkas Tuam Tshoj Apam Anionic Polyacrylamide PAM rau Crude Roj Petroleum,Yixing Cleanwater Chemical Co., Ltd.tau ntsib cov chaw tsim khoom nrog ntau tshaj 100 tus neeg ua haujlwm.Yog li peb tuaj yeem lav lub sijhawm luv luv thiab kev lees paub zoo.
Yuav ntau thiab txuag tau ntau dua 100% Lub Hoobkas Thawj Tuam Tshoj Anionic Polyacrylamide, chitosan, drilling polymer, pac, pam, decoloring tus neeg saib xyuas, dicyandiamide, polyamines, defoamer, kab mob tus neeg sawv cev, Cleanwat yuav txuas ntxiv mus ua raws li "zoo tshaj, muaj koob npe, tus neeg siv ua ntej ” lub hauv paus ntsiab lus siab dawb paug.Peb zoo siab txais tos cov phooj ywg los ntawm txhua qhov chaw ntawm lub neej tuaj xyuas thiab muab kev taw qhia, ua haujlwm ua ke thiab tsim lub neej yav tom ntej ci ntsa iab!
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Lub sij hawm xa tuaj: Plaub Hlis-09-2022