Ultraviolet Radiation rau Pwm Kho: Kev Tshawb Fawb Txog Kev Tshawb Fawb Txog Kev Tshawb Fawb, Kev Txwv Daim Ntawv Thov, thiab Kev Coj Zoo
Nyob rau niaj hnub no lub siab tsom mus rau sab hauv ib puag ncig zoo, pwm kab mob tau tshwm sim los ua ib qho kev txhawj xeeb tseem ceeb rau kev noj qab haus huv. Hauv teb,Ultraviolet -C (UVC) hluav taws xobthev naus laus zis tau txais kev saib xyuas raws li txoj kev tshuaj tua kab mob lub cev. Txawm li cas los xij, muaj ntau qhov tsis meej pem thiab kev nkag siab tsis tseeb txog nws qhov ua tau zoo, kev nyab xeeb, thiab kev siv tsim nyog. Kab lus no systematically tsom xam cov pov thawj scientific qabUVC germicidal irradiationrau pwm inactivation, nws mechanism ntawm kev txiav txim, thiab cov kev txwv tseem ceeb rau kev siv tswv yim.
Yuav ua li cas UVC Radiation ua rau Pwm
Yuav kom nkag siab txog UVC cov nyhuv, ib qho yuav tsum xub xav txog nws lub hom phiaj: pwm spores. Cov qauv kev ua me nyuam resilient no tuaj yeem muaj sia nyob hnyav. UVC teeb, tshwj xeeb tshaj yog nyob ib ncig ntawm254-nanometer wavelength, tsis "tshuaj lom" pwm tab sis ua haujlwm los ntawmua kom puas microbial DNA.
Thaum pwm spores raug rau ib qho txausUVC tawg koob tshuaj, uas nyob ib sab thymine hauv paus hauv lawv cov DNA molecules nqus photon zog thiab tsim cov kab mob txawv txav hu uathymine dimers. Qhov kev puas tsuaj ntawm cov qauv no cuam tshuam rau DNA replication thiab transcription, ua rau cov spores tsis yog - siv tau thiab tsis ua haujlwm. Kev tshawb fawb luam tawm hauvApplied thiab Environmental Microbiologyqhia tias a99.9% inactivation tus nqirau cov pwm sab hauv tsev zoo liAspergillus nigerthiabPenicilliumfeem ntau yuav tsum tau txhaj koob tshuaj UV ntawm 10,000 thiab 30,000 µJ / cm²- ntau dua qhov xav tau rau cov kab mob feem ntau [1].
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias pwm hyphae (cov txheej txheem filamentous) muaj kev tiv thaiv ntau dua vim lawv cov txheej txheem nyuaj thiab muaj peev xwm embedding nyob rau hauv cov ntaub ntawv, piav qhia vim li cas UVC thiaj li muaj txiaj ntsig zoo tiv thaiv cov spores saum npoo tab sis tsis tsim nyog rau kev tsim, pom pwm pawg.
UVC vs. Lwm txoj kev kho pwm
Kev xaiv lub tswv yim kho kom zoo yuav tsum muaj kev sib npaug, nqi, kev nyab xeeb, thiab kev ua tau zoo. Cov lus hauv qab no sib piv plaub yam tseem ceeb:
| Sib piv Dimension | Kev tiv thaiv UVC | Tshuaj Biocides | Qhov cua & Humidity Control | Kev tshem tawm lub cev |
|---|---|---|---|---|
| Mechanism ntawm Action | Kev cuam tshuam lub cev ntawm spore DNA | Tshuaj oxidation/kev puas tsuaj ntawm cov qauv ntawm tes | Hloov qhov chaw noo noo xav tau rau kev loj hlob | Kev tshem tawm ncaj qha ntawm cov khoom tsis huv |
| Thawj Qhov Zoo | Tsis muaj tshuaj lom neeg, ua haujlwm sai, kho cov kab mob hauv huab cua | Cov txiaj ntsig sai ntawm qhov chaw, zoo tiv thaiv hyphae thiab spores | Hais txog cov hauv paus hauv paus, tsis tshua muaj nqi ntev -, txhim kho IAQ tag nrho | Feem ntau cov kev daws teeb meem, tam sim ntawd tshem tawm qhov chaw |
| Cov kev txwv tseem ceeb | Tsuas yog siv tau rau ntawm kab ncaj nraim - ntawm - pom qhov chaw; tsis muaj txiaj ntsig ntawm qhov zais / tob pwm; kev nyab xeeb | Muaj peev xwm toxic VOCs, nto corrosion, tsis zoo nkag mus rau hauv cov khoom ntxeem tau | Tsis tshem tawm kev loj hlob uas twb muaj lawm; nyuaj hauv cov huab cua ntub | Tsim cov plua plav thiab spores (kev pheej hmoo ntawm kev hla- paug); ua haujlwm- hnyav heev |
| Optimal Application Scenario | Disinfection ntawm AHU coils, kho qhov chaw du, biosafety txee | Kev kho me me - nplai ntawm qhov tsis yog - ntxeem tau, tawv tawv (cov nplais, iav) | Lub hauv paus thiab kev tiv thaiv kev ntsuas rau txhua qhov chaw (hauv qab daus, chav dej) | Pwm hnyav heev- cov khoom siv hauv tsev (drywall, ntaub pua plag, qab nthab) |
| Kev vam meej | Nruab nrab mus rau siab (yuav tsum muaj cov cuab yeej tshaj lij, suav tshuaj, kev cob qhia kev nyab xeeb) | Tsawg mus rau Nruab Nrab (cov khoom lag luam muaj, yuav tsum ua raws li cov txheej txheem kev nyab xeeb) | Tsawg (yuav siv tau los ntawm tus neeg nyob) | Siab (qhov mob hnyav yuav tsum muaj kev tshaj lijpwm kho cov neeg cog lus) |
Kev ua tau zoo thiab lub tswv yim "Dose".
Lo lus teb rau "Puas UVC tua pwm?" hinges nkaus ntawm lub tswvyim ntawm"dose."CovUV tshuaj tua kab mobyog cov khoom ntawm irradiance (kev siv) thiab lub sij hawm raug (tseem nyob rau hauv µJ / cm² los yog mJ / cm²).Pwm spore inactivationyuav tsum tau koob tshuaj ntau vim lawv cov phab ntsa tuab, muaj peev xwm tiv thaiv pigments (piv txwv li, melanin hauvAspergillus niger), thiab dav ib puag ncig resilience.
Tsev kho mob- qib siab- siv UVGIcov cuab yeej siv tau zoo heev vim nws xa cov UVC siab heev hauv lub sijhawm luv luv. Piv txwv li, mobile UVGI neeg hlau siv rau cov tshuaj tua kab mob hauv tsev kho mob hauv tsev kho mob tuaj yeem tso tawm irradiance ntau ntau pua µW / cm², muaj peev xwm sib sau cov koob tshuaj tuag ntawm kaum tawm txhiab µJ / cm² hauv feeb. Hauv qhov sib piv, cov teeb pom kev zoo nyob hauv UVC tej zaum yuav muaj qhov tso tawm ib puas npaug qis dua thiab, txwv tsis pub muaj kev nyab xeeb xws li kev txav chaw -sensing auto-shutoff, tsis tuaj yeem khaws cov pwm zoo- tua cov tshuaj hauv qhov chaw nyob.
Tsis tas li ntawd, UVCskab - ntawm - pom kev xav tauthiab lub zog nkag mus tsis zoo yog cov kev txwv loj. Nws tsis tuaj yeem khoov ib puag ncig obstacles; plua plav, grime, lossis txawm tias nyias nyias cov yeeb yaj kiab tuaj yeem txo nws qhov kev siv zog. Qhov no txhais tau hais tias txhua qhov chaw ntxoov ntxoo, qhov tob, lossis pwm loj hlob nyob rau hauv ib qho substrate tseem tsis tau kho. Yog li ntawd, US Environmental Protection Agency (EPA) tau hais meej meej tias UVGI tsis yog ib qho kev daws teeb meem rau kev ntxuav pwm thiab yuav tsum tau koom nrog.qhov chaw tshem tawm thiab tswj cov dej noo [2].
Kev nyab xeeb yog qhov tseem ceeb
Yog tias xav txog UVC thev naus laus zis, qhov tseem ceeb ntawm kev nyab xeeb tsis yog - sib tham tau:
Kev ntsuam xyuas thawj zaug: ntiav ib tug tsim nyogsab hauv ib puag ncig zookws tshaj lij los txheeb xyuas hom pwm, qhov paug paug, thiab qhov chaw noo noo.
Xaiv Cov Khoom Siv Ua Raws Cai: Xyuas kom cov cuab yeej muaj cov ntawv pov thawj kev nyab xeeb (piv txwv li, IEC 60335) thiab ua haujlwm tsis zoo- cov txheej txheem kev nyab xeeb xws li cov khoom siv nyob hauv.
Tswj nruj nruj tiv thaiv tus kheej: Tshem tawm txhua tus neeg nyob thiab cov tsiaj thaum ua haujlwm. Cov neeg ua haujlwm tau txais kev cob qhia yuav tsum hnav UVC- thaiv cov looj tsom iav thiab daim npog ntsej muag.
Teeb Kev Cia Siab tiag: Nkag siab tias UVC feem ntau ua haujlwm ua ib qhocov cuab yeej ntxiv rau kev tswj huab cua thiab saum npoo av, tsis yog ib qho kev hloov rau kev tshem tawm cov khoom pwm.
Xaus
Hauv cov ntsiab lus, UVC thev naus laus zis yog ib txoj hauv kev siv tshuaj tua kab mob hauv lub cev nrog cov pov thawj ua tau zoo hauv kev ua kom tsis txhob muaj pwm pwm spores thiab cov kab mob ntawm qhov chaw nyob rau hauv cov xwm txheej tshwj xeeb. Txawm li cas los xij, nws "kab- ntawm- pom" xwm ua rau nws tsis muaj txiaj ntsig tiv thaiv kev zais lossis tsim pwm loj hlob. Rau cov teeb meem pwm nyob hauv tsev, cov tswv yim zoo tshaj plaws tseem yog txoj hauv kev ua ke ntawm"Kev tshem tawm- Qhuav- Tiv thaiv": tshem tawm cov khoom ntxeem tau kom huv si, tswj cov av noo nyob hauv tsev tsis tu ncua qis dua 60%, thiab kho txhua qhov kev nkag mus ntawm cov dej noo. Nyob rau hauv lub moj khaum no, UVC tuaj yeem ua haujlwm zoosiab -theem auxiliary tooltxhawm rau tswj huab cua kom zoo thiab kho qhov nyuaj - mus rau - mus txog thaj chaw xws li HVAC systems. Kev sab laj nrogcov kws kho mob tshwj xeeblos yog ntawv pov thawjpwm kho cov kws tshaj lijNws yog ib qho tseem ceeb ua ntej yuav siv cov cuab yeej siv siab -UVC.
FAQ
Q1: Puas muaj kev lag luam muaj "lub tsev UVC pwm teeb" tiag tiag tshem tawm cov pwm ntawm phab ntsa?
A:Lawv cov kev ua tau zoo yog qhov txwv. Cov neeg nyob hauv- qib UVC teeb yog qis- lub zog thiab feem ntau muaj lub sijhawm ua haujlwm lossis pib- kaw cov yam ntxwv kom muaj kev nyab xeeb, tiv thaiv kev sib sau ntawm cov tshuaj tuag. Qhov tseem ceeb, pom cov pwm me me muaj xws li cov hyphae thiab spores. UVC tsuas tuaj yeem cuam tshuam cov spores tshaj plaws, tawm hauv cov hyphal network thiab cov stains tsis kov. Phab ntsa deterioration, xws li crumbling los yog tev, tseem yuav tsum tau tshem tawm lub cev thiab kho.
Q2: Dab tsi yog qhov tseem ceeb ntawm kev nyab xeeb thaum siv UVC teeb rau kev tua kab mob hauv tsev?
A:Cov kev pheej hmoo tseem ceeb poob rau hauv ob pawg:direct raug teeb meemthiabcov pa phem theem nrab. UVC tuaj yeem ua rau photokeratitis (mob qhov muag raug mob) thiab tawv nqaij kub hnyiab; nws yuav tsum tsis txhob siv rau hauv qhov chaw nyob. Qee lub teeb uas tawm 185nm wavelength teeb tuaj yeem tsimozone, muaj teeb meem ua pa ua pa tsis zoo, xav tau qhov cua txaus. Tsis tas li ntawd, UVC tuaj yeem degrade qee yam yas, roj hmab, thiab lwm yam ntaub ntawv dhau sijhawm.
Q3: Yog tias kuv ntiav ib lub tuam txhab kho pwm tshaj lij uas siv siab - siv UVC, qhov ntawd puas tau lees tias qhov teeb meem pwm raug daws ntawm nws cov hauv paus?
A:Tsis tas li; nws nyob ntawm lawv cov txheej txheem tag nrho. Reputablepwm kho cov neeg cog lussiv siab - siv UVGI feem ntau rau "terminal disinfection" tom qab tshem tawm lub cev ntawm cov khoom tsis huv, aiming mus tshem tawm cov seem hauv huab cua thiab nto spores- siab - tus txheej txheem ntxiv. Txawm li cas los xij, lub hauv paus ntawm kev kho yog: 1) txheeb xyuas thiab kho cov dej hauv qhov chaw (xws li, condensation), thiab 2) tshem tawm tag nrho cov uas tsis yog- ntxuav, pwm- cov ntaub ntawv ntxeem tau (xws li phab ntsa ntub dej, rwb thaiv tsev). Yog tias cov tshuaj tua kab mob ua tiav yam tsis tau hais txog qhov chaw noo noo thiab tshem tawm cov kab mob sib kis, pwm regrowth yuav luag tsis muaj.
Cov ntaub ntawv
[1] Kowalski, W. (2009).Ultraviolet Germicidal Irradiation Phau Ntawv. Springer. Phau ntawv no muab kev tshuaj xyuas txog UVGI inactivation dose data rau ntau yam kab mob, nrog rau cov pwm spores.
[2] Lub Chaw Haujlwm Saib Xyuas Kev Tiv Thaiv Ib puag ncig Tebchaws Meskas.Pwm kho hauv tsev kawm ntawv thiab cov tsev lag luam. (EPA 402-K-01-001). Phau ntawv qhia no tsim kom muaj kev tshem tawm lub cev ua thawj txoj hauv kev rau kev ntxuav pwm thiab sib tham txog lub luag haujlwm ntawm UVGI ua ib qhopabcuab yeej.
[3] International Electrotechnical Commission.IEC 60335-2-109: Cov*"Cov khoom siv hluav taws xob hauv tsev thiab zoo sib xws - Kev Nyab Xeeb - Ntu 2-109: Cov kev cai tshwj xeeb rau cov khoom siv hluav taws xob UV hluav taws xob kho dej."* Thaum tsom mus rau kev kho dej, cov qauv kev nyab xeeb (hais txog 防护, ozone txwv) muaj feem xyuam rau cov khoom siv tshuaj tua kab mob hauv huab cua.
