Kev Paub Txog UVC

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Vim li cas ultraviolet teeb siv rau kom tsis muaj menyuam?

Sij hawm: 2020-03-31

To keep our environment virus and bacteria free, people have adopted a lot of techniques, and one of the most recent and successful procedure is ultraviolet light for disinfection.


Ultraviolet light is a form of light that is undetectable to the human eye. And it helps in the disinfection of any surface. It is able to destroy all kinds of microorganisms, including drug-resistant bacteria.


ultraviolet light spectrum


Why use ultraviolet light for sterilization?


Ultraviolet lub teeb ua rau kom ua tiav cov kab mob sai thiab ua tiav kev tawm dag zog. Nws ua haujlwm qhov tseem ceeb los ntawm kev rhuav tshem cov DNA lossis RNA ntawm cov kab mob.


Nws raug nquahu kom siv rau hauv cov xwm txheej uas muaj qhov xav tau kev tu lub cev, vim nws tshem tawm cov kab mob txuas ntxiv ntawm cov kab mob, nres lawv los ntawm kev sib txuam, uas yog qhov tseem ceeb ntawm kev kis mob.


ultraviolet light can kill viruses


History of ultraviolet light as a sterilizer


UV sterilization is not a new technology and the history of UV sterilizer can be tracked back to 1877.


Xyoo 1877, ob tus kws tshawb fawb British pom tias cov dej qab zib muab tso rau ntawm lub qhov rais ci zuj zus tuaj ua huab, thaum dej qab zib nyob hauv tshav ntuj tseem ua kom pom tseeb.


Lawv tau soj ntsuam cov dej hauv lub tshuab tsom thiab pom tias cov kab mob loj hlob hauv qhov dej ntxoo, tab sis tsis nyob hauv dej hnub ci. Tom qab kev tshawb fawb ntxiv, lawv tshaj tawm tias lub teeb ci ultraviolet muaj lub zog kom tsis muaj menyuam.


Ob peb xyoos tom qab tib neeg pom tias muaj cov tshuaj tua kab mob thiab tshuaj tua kab mob ntawm lub hnub qub, lawv pib siv cov txheej txheem no.


Xyoo 1906, ob tus kws tshawb fawb German tsim thawj lub raj arc uas muaj peev xwm tsim hluav taws xob ultraviolet. Xyoo 1910, tus kws tshawb fawb Fabkis tau tsim thawj thawj cov teeb meem loj ua kua muag pom kev tsis pom kev ntawm cov dej haus ...


ultraviolet light is becoming daily


By the 1960s, uv sterilizer was becoming more extensively operated in commercial relevance and was sliding into the residential market.


Today, ultraviolet light is comprehensively accepted as a fruitful treatment for the removal of germs from water. Even highly chlorine-resistant microorganisms such as Giardia and Cryptosporidium can be successfully disinfected from water with ultraviolet light.

Advantages of ultraviolet light for disinfection


Muaj ntau qhov zoo ntawm kev siv ultraviolet lub teeb tua kab mob hom.


Piv txwv, nws tuaj yeem siv rau hauv cov kab mob ntawm huab cua, dej tsis huv, thoob dej ntses lossis kab mob ntawm lub pas dej, nrog rau cov khoom siv hauv chaw kuaj kab mob, thiab lwm yam piv txwv muaj nyob hauv qab no:


· Ultraviolet light is an effective disinfection method


Ultraviolet lub teeb tua kab mob yog ua los ntawm kev rhuav tshem cov nucleic acids thiab tsim kev puas tsuaj rau lawv cov DNA thiab RNA, ua rau lawv tsis muaj zog los ua lub luag haujlwm tseem ceeb ntawm tes.


Ultraviolet lub teeb tua kab mob yog ua raws hauv kev thov ntau yam, xws li khoom noj, huab cua, thiab dej tsis huv.


Dej thiab lwm yam khoom siv tua kab mob los ntawm Ultraviolet lub teeb tua kab mob tsis hloov pauv tsis tau saj lossis hnov ​​tsw ntawm cov khoom no vim tias nws tsis tas yuav muaj ib yam dab tsi ntxiv rau hauv cov khoom no. Nws kuj tseem nres regrowth ntawm cov kab mob me me zoo li cov kab mob, microbe, cab, thiab lwm yam.


Ultraviolet lub teeb tua kab mob yog hom sai thiab sai ntawm kev tua kab mob qhov twg pom tau pom nyob hauv ob peb feeb.


Txuj ci ntsig txog: UV teeb ci tua tau cov kab mob thiab cov kab mob puas tau?


Applications of ultraviolet light


· Ultraviolet light contains no chemical material


Cov txheej txheem ultraviolet lub teeb tua kab mob yog qhov tsim nyog siv thiab tsis muaj tshuaj tua kab mob.


Nws yuav tsum tsis muaj chaw ntim khoom, chaw rau khoom los yog tuav ntawm cov tshuaj lom thiab tshuaj lom. Qhov no txhais tau tias hloov cov txheej txheem no rau kev tua kab mob thiab kom tsis muaj menyuam yuav tsis muaj kev phom sij nyob hauv cov zej zog ib puag ncig.


Yog li ntawd, tsis muaj cov tshuaj lom neeg tawm tom qab daim ntawv thov ntawm lub teeb ci ultraviolet. Nws tau txais txiaj ntsig zoo rau kev tsau tshuaj thiab tsau tshuaj rau txhua qhov chaw hauv thaj chaw, nrog kev siv zog tsawg thiab tsis muaj tshuaj lom neeg txoj sia.


· Ultraviolet light doesn't form harmful by-products


Cov khoom tsim tau tuaj yeem tsim tau thaum cov tshuaj tua kab mob tiv thaiv nrog cov sib txuas ua ke muaj nyob hauv dej. Kev loj hlob ntawm cov by-products feem ntau tshwm sim los ntawm cov kev coj ua hauv cov organic tshuaj ua si ib feem.


Tab sis ultraviolet lub teeb ua kom lub teeb yog tshuaj lom neeg tsis muaj kev ua si uas ntxiv ib yam dab tsi rau cov dej uas tsis dhau lub teeb ci ultraviolet, yog li tsis muaj cov khoom tsim ua.


Sterilization principle of ultraviolet light


· Ultraviolet light is non-toxic


Qhov txiaj ntsig zoo tshaj plaws ntawm kev ua kom pom lub teeb ci ultraviolet yog tias nws tsis yog mob toxic. Raws li qhov tsis zoo rau cov tshuaj muaj zog uas siv hauv cov khoom ua kom huv thiab tsau tshuaj, lub teeb ci ci yog ib puag ncig zoo.


Cov duab tua hluav taws xob tua hluav taws xob ci yog tsis muaj cov txheej txheem tshuaj lom neeg, nws yog ib lub cev. Ultraviolet lub teeb tua kab mob muaj kev nyab xeeb rau kev siv ntawm cov zaub mov thiab kev pabcuam ua noj ua haus thiab cov khoom noj tsis yog khoom noj.


Txawm hais tias tib neeg tuaj yeem raug mob los ntawm ntau qhov kev cuam tshuam los ntawm Ultraviolet qhov yooj yim, kev tiv thaiv kom tsim nyog ua qhov no ua qhov kev nyab xeeb thiab tsis muaj tshuaj tua kab mob rau hauv lub tsev noj mov, cafes, thiab thaj chaw kho mob.


Ib yam li cov tshuaj muaj kuab lom nyob hauv cov khoom tu, hluav taws xob ultraviolet tsis ua rau kev puas tsuaj, yog tias ib tug neeg siv kev ntsuas ua ntej.


Qhov twg ntawm ultraviolet teeb zoo dua?


Raws li peb txhua tus paub, ultraviolet lub teeb, uas thaj tsam li ntawm 10nm txog 400nm, belongs rau qhov pom tsis pom. Thiab qhov haujlwm ntawm ultraviolet teeb nyob ntawm lub wavelength ntau.


Dab tsi peb paub zoo nrog rau hauv qab no peb yam:


UV-A, 320nm txog 400 nm. Nws ua rau feem ntau ntawm cov duab hluav taws xob ultraviolet mus txog lub ntiaj teb. Thiab nws tuaj yeem tsim kev puas tsuaj rau peb cov tawv nqaij thiab qhov muag.


UV-B, 280nm rau 320nm. Nws tuaj yeem kho kab mob ntawm daim tawv nqaij. Tab sis ntau dhau kis yuav ua rau tshav kub thiab ua daim tawv nqaij tawv.


UV-C, 200nm txog 280nm. Nws yog qhov tshwj xeeb zoo ntawm sterilizing. Tab sis nws cov peev txheej nkag tau muaj zog heev. Ua ntej nce mus rau hauv av, txhua lub teeb ci UV-C yuav nqus los ntawm ozone hauv cov huab cua.


Txuj ci ntsig txog: Qhov twg UV lub teeb yog qhov zoo tshaj plaws?


ultraviolet light has sterilizaton effect


Tam sim no, cov khoom siv tua kab mob tua kab mob ntau dhau siv UV-C lub teeb ua lub hauv paus ntawm nws lub peev xwm tua kab mob. UV-C lub teeb yog qhov kev daws teeb meem zoo rau kev ua kom tsis huv, uas yog vim li cas nws siv hluav taws xob ntau tshaj plaws.


Txawm li cas los xij, nws tseem yuav ua rau qee qhov kev puas tsuaj loj. Yog tias koj tsis xyuam xim, UV-C lub teeb tuaj yeem nkag rau koj cov tawv nqaij thiab ua rau muaj kev phom sij lossis raug mob. Ntev dhau sijhawm, UV-C lub teeb kuj tuaj yeem ua rau qee yam puas thiab cov khoom siv roj hmab.


Ntau qhov teeb pom kev zoo ntawm UV-C txawm tias muaj cov tshuaj mercury, uas ua rau kom tsis muaj menyuam txaus ntshai thiab nyuaj.


Rov qab rau lo lus nug: hom ultraviolet teeb yog qhov zoo tshaj plaws li cas? Cov lus teb tsis muaj tseeb.


Piv txwv li, peb tuaj yeem siv UVC hauv qhov chaw ceev kom tsis txhob muaj cov paug thiab dhau hwv. Thiab peb kuj tuaj yeem ua ke UV-A nrog photocatalyst lim rau kev txiav txim siab thiab tshem tawm cov organic compound hauv huab cua.


Qhov teeb meem tseem ceeb yog seb peb to taub lawv cov yam ntxwv sib txawv.

Precautions when using ultraviolet light


Tib neeg yuav muaj kev pheej hmoo yog tias lawv raug rau UV hluav taws xob me txawm tias lub sijhawm me ntsis. Lub zog ntawm kev ua phem yog nyob ntawm lub sijhawm raug, sib zog thiab ntev ntawm ultraviolet lub teeb, thiab qhov rhiab ntawm tus neeg.


Hauv qab no yog qee qhov kev qhia uas yuav tsum tau ua raws li txhawm rau kom koj tus kheej thiaj nyab xeeb los ntawm lub teeb ci ci ultraviolet.


ultraviolet light can harm human


· Siv cov ntxaij lim dej, lo ntsiab muag, tsom qhov muag thiab looj hnab looj tes qhia los ntawm kws kho qhov muag.

· Siv ultraviolet lub teeb ci txoj kab uas raug kaw

· Siv phau ntawv lossis siv hluav taws xob npog kom kaw qhov nqaj thaum ultraviolet hom teeb ci tsis siv

· Tsis txhob saib ncaj rau lub teeb ci ultraviolet

· Zam tsis txhob mus xyuas thaj chaw uas muaj kev siv duab ci ntsa iab

· Tiv thaiv koj ob sab caj npab thiab caj dab los ntawm npog lawv thiab txo lub sijhawm raug ncua

· Siv cov paib ceeb toom qhia ceeb toom hauv chav kuaj lossis nkag mus rau thaj chaw uas siv hluav taws xob ultraviolet


Hauv cov ntsiab lus, ultraviolet teeb yog kev nkag siab yuam kev thiab qhov siv hauv qab ua haujlwm rau kom tsis muaj menyuam thiab tua kab mob. Yog tias peb coj los siv cov duab hnub qub, nws yuav dhau los ua cov cuab yeej muaj zog tshaj plaws hauv ntau qhov chaw.


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