Kev ruaj ntseg thiab dej huv yuav tsum tau ceev faj xaiv cov tshuaj tua kab mob. Thaum ntsuas cov tshuaj tua kab mob hauv dej, ob yam tseem ceeb yuav tsum tau xav txog:bactericidal efficiencythiabstability nyob rau hauv dej. Cov xwm txheej no tsis tsuas yog txiav txim siab tias cov tshuaj tua kab mob tshem tawm cov kab mob tsis zoo li cas, tab sis kuj tseem ua haujlwm zoo npaum li cas nws cov haujlwm dhau sijhawm. Ntawm cov tshuaj tua kab mob uas nquag siv, chlorine dioxide (ClO₂) sawv tawm raws li kev xaiv ntau yam thiab muaj txiaj ntsig zoo.
Kev ntsuam xyuas cov tshuaj tua kab mob
Cov chaw kho dej feem ntau siv cov tshuaj tua kab mob xws liCov tshuaj chlorine (Cl₂), chlorine dioxide (ClO₂), ozone (O₃), poov tshuaj permanganate (KMnO₄), chloramine (NH₂Cl), thiabHydrogen peroxide (H₂O₂). Txhua tus tshuaj tua kab mob muaj nws tus kheej lub zog thiab kev txwv:
Bactericidal efficiency:O₃> ClO₂> Dawb chlorine> Chloramine
Stability nyob rau hauv dej:Chloramine> ClO₂> Dawb chlorine> O₃
Thaum ozone muaj lub zog tua kab mob siab tshaj plaws, nws qhov kev ruaj ntseg luv luv txwv kev siv hauv cov kav dej thiab cov tshuab cia. Chloramine yog ruaj khov heev tab sis muaj qis dua cov kab mob bactericidal. chlorine dioxide muaj qhov zoo sib npaug, muab cov tshuaj tua kab mob muaj zog thaum tswj kev ua haujlwm txaus.
Cov txiaj ntsig tseem ceeb ntawm chlorine Dioxide
Chlorine dioxide tau lees paub tias yog ib qho tshuaj tua kab mob zoo tshaj plaws rau kev kho dej hauv nroog thiab hauv nroog vim nwsbroad -kev ua spectrum, kev ua haujlwm siab, tsis muaj tshuaj lom, thiab tsim los ntawm cov khoom tsawg tsawg. Nws qhov zoo tuaj yeem raug sau tseg hauv plaub yam tseem ceeb:
1. Xaiv qhov kev xav
Chlorine dioxide xaiv reacts nrog ob qho tib siinorganic thiab organic tshuaj. Nws ua tau zoo lub hom phiaj inorganic tebchaw xws lioxides, sulfides, hlau, thiab manganese, as well as organic compounds likephenols, chlorophenols, thiab thiols. Qhov tseem ceeb, ClO₂ uatsis raug hloov cov tshuaj tiv thaiv nrog nitrogen- muaj cov organic teeb meem, uas txhais tau tias nws tsis txhob tsim teeb meemchlorophenols los yog trihalomethanes (THMs).
Qhov kev xaiv tus cwj pwm no ua rau cov tshuaj chlorine dioxide tshwj xeeb rauKev kho dej khib nyiab uas muaj qib siab ntawm phenols lossis cov organic teeb meem, qhov twg lwm cov tshuaj tua kab mob tuaj yeem tsim cov khoom tsis zoo los yog ntxhiab tsw.
2. Superior Bactericid Efficiency
Cov tshuaj chlorine dioxide feem ntau muab cov kab mob bactericidal muaj zog dua li cov tshuaj dawb chlorine, thiab qhov txiaj ntsig no tau tshaj tawm ntawmpH ntau dua. Ntawm qhov tsis tshua muaj siab, ClO₂ diffuses sai dua hauv dej dua li cov pa roj chlorine, ua kom muaj cov kab mob microbial sai dua. Nws muaj txiaj ntsig zoo tiv thaiv ntau yam kab mob microorganisms, suav nrog:
Algae
Cov kab mob heterotrophic
Cov kab mob hlau
Sulfate- txo cov kab mob
Qhov no ua rau nws haum rau kev tua kab mobpas dej ua ke, lim, pipelines, thiab industrial water systems.
3. Muaj zog Oxidizing zog thiab pH kev ywj pheej
Tsis zoo li chlorine, chlorine dioxide tswj nwsoxidizing muaj peev xwm hla ntau pH ntau yam, ua rau nws tsis tshua nkag siab rau pH hloov pauv. Nws ua tausai oxidize txo cov tshuajzoo li manganese thiab hlau, tshem tawm cov ntxhiab ntawm chlorophenols thiab algae, thiab txawmbleach xim dej khib nyiab. Nws cov nyhuv bactericidal kuj nce nrog qhov kub thiab txias, txhim kho nws cov kev ua tau zoo hauv cov dej sov.
4. Kev ua haujlwm ruaj khov
Chlorine dioxide uatsis hnov mob nrog ammonia nitrogen, txhais tau tias nws tsis noj thaum lub sij hawm tshuaj tua kab mob. Nyob rau tib qhov kev siv tshuaj chlorine zoo, ClO₂ tuaj yeem tswj tau ib qhosiab dua residual concentration, ua kom ntseeg tau ntev dua - kev tua kab mob. Cov yam ntxwv no yog qhov tseem ceeb hauv kev kho dej hauv kev lag luam, qhov twg cov dej mus los ntawm cov kav dej ntev thiab cov tso tsheb hlau luam ua ntej mus txog qhov siv.
Kev siv tswv yim thiab tsim cov tshuaj chlorine dioxide
Ib qho kev txwv ntawm ClO₂ yog nwskhaws tsis tauthiab yuav tsum yogtsim tawm ntawm -site. Muaj ob txoj hauv kev tseem ceeb rau kev tsim cov tshuaj chlorine dioxide, nrog rauchemical tiam methodtau dav siv:
Yuav tsum muaj atshwj xeeb txo tus neeg sawv cevthaum npaj.
Tsim ibtshuaj dawb huv, muaj peev xwm txo chlorate rau ClO₂.
Kev xav tau tuaj yeem hloov kho dawb raws li kev xav tau kev kho mob.
Kev ua haujlwm yooj yim, cov cuab yeej siv me me hneev taw, thiab kev nqis peev tsawg.
Muaj kev nyab xeeb, tswj tau, thiab lub zog- ua haujlwm tau zoo, nrog kev saib xyuas yooj yim.
Qhov no ua rau chlorine dioxide generators zoo tagnrho rauindustrial water kho nroj tsuag, muab kev yooj yim thiab kev nyab xeeb ntawm kev ua haujlwm.
Hais txog Cov Kev Sib Tw hauv Daim Ntawv Thov ClO₂
Thaum chlorine dioxide muaj ntau yam zoo, qee qhov kev sib tw ua haujlwm yuav tsum tau hais txog:
Tsis hnov tsw:Thaum ntxiv rau cov dej nyoos, ClO₂ muaj ib qhomuaj zog pungent tsw, tshwj xeeb tshaj yog thaum lub caij sov sov.
Kev daws:Qhia cov tshuaj chlorine dioxide nyob rau hauv qhov tsaus ntuj los yog ncaj qha mus rau hauv cov kav dej nyoos kom txo cov volatilization thiab tiv thaiv kom tsis txhob muaj ntxhiab tsw ntau hauv coagulation tso tsheb hlau luam.
Chlorite/Chlorate Tsim:Cov ntsiab lus hlau lossis manganese siab hauv dej yuav xav tau ntau dua ClO₂ ntau npaum, uas tuaj yeem nce ntxivchlorite thiab chlorate qibhauv effluent.
Kev daws:Yog tias cov tshuaj chlorite ntau dhau,ferrous ntsev tuaj yeem ntxivtxhawm rau txo cov chlorite thaum ua ntej - oxidation lossis tshuaj tua kab mob.
Sib piv nrog Sodium Hypochlorite
Chlorine dioxide thiab sodium hypochlorite (NaOCl) feem ntau piv rau:
Chlorine dioxideyog zoo tagnrho rauloj - cov ntawv thov kev lag luamvim nws cov tshuaj tua kab mob muaj zog, kev xaiv, thiab cov khoom siv tsawg tsawg.
Sodium hypochloriteyog tsim nyog raucov tsev kho mob, cov chaw kho dej me me, thiab cov xwm txheej xav tau tus nqi - tswj tau zoo, txawm hais tias nws yuav tsim tau ntau THMs thiab tsw ntxhiab hauv qee yam mob.
Zuag qhia tag nrho, ClO₂ tuav aqhov txiaj ntsig tseem ceebhauv kev ua haujlwm, kev nyab xeeb, thiab kev ua haujlwm ntev - piv rau ntau lwm yam tshuaj tua kab mob.
Xaus
Chlorine dioxide stands li ibntau yam, ua tau zoo, thiab muaj kev nyab xeeb tshuaj tua kab mobrau ob qho tib si kev lag luam thiab kev kho dej hauv nroog. Nws tshwj xeeb ua ke ntawmdav -spectrum tshuaj tua kab mob, xaiv reactivity, pH- ywj siab ua tau zoo, thiab kev ua haujlwm ruaj khovua rau nws zoo tagnrho rau cov ntawv thov kev kho dej nyuaj.
Thaum cov kev xav txog kev ua haujlwm xws li kev tswj cov ntxhiab tsw thiab kev tswj cov tshuaj chlorite yuav tsum tau hais txog, tsim nyog ntawm - qhov chaw tsim khoom thiab kev tswj kev noj tshuaj kom ntseeg tau tias chlorine dioxide tseem yog qhov kev xaiv zoo tshaj plaws ntawm cov tshuaj tua kab mob.
Los ntawm kev nkag siab txog nws qhov zoo thiab kev txwv, cov kws kho dej tuaj yeem ua tauoptimize ClO₂ sivkom huv si, dej nyab xeeb - pab txhawb rauzoo dua pej xeem noj qab haus huv thiab ib puag ncig sustainability.