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UV hluav taws xob ua haujlwm li cas

UVC

Ua ntej teb cov lus nug no cia saib dab tsi yog UV Teeb.

Ua ntej, cia peb rov qab kawm lub tswvyim UV. UV, lossis ultraviolet, lossis ultraviolet, yog hluav taws xob hluav taws xob nrog qhov ntev ntawm 10nm txog 400nm. UV ntawm cov nthwv dej sib txawv tuaj yeem faib ua UVA, UVB thiab UVC.

UVA: txoj kev nthwv dej ntev ntev, ntawm 320-400nm, uas tuaj yeem nkag rau cov huab thiab iav rau hauv chav thiab lub tsheb, thiab tuaj yeem nkag rau hauv daim tawv nqaij ntawm daim tawv nqaij, ua rau tshav ntuj. UVA tuaj yeem raug faib ua uva-2 (320-340nm) thiab UVA-1 (340-400nm).

UVB: txoj kab hluav taws xob nyob hauv nruab nrab, nruab nrab ntawm 280-320nm. Nws yuav ua kom tiav los ntawm ozone txheej, ua rau tshav kub thiab tawv nqaij liab, o, kub thiab mob. Yog mob hnyav, hlwv lossis tawv yuav tshwm sim.

UVC: lub wavelength yog nruab nrab ntawm 100-280nm, tab sis vim tias lub wavelength qis dua 200nm yog nqus ultraviolet, nws tuaj yeem nqus tau los ntawm huab cua, yog li lub wavelength ntawm UVC uas tuaj yeem hla cov huab cua nyob ntawm 200-280nm, luv dua thiab ua rau muaj kev phom sij ntau. wavelength yog, tab sis vim tias nws tuaj yeem txhaws los ntawm ozone txheej, tsuas yog ib qho me me yuav ncav cuag lub pob npoo av.

UVC ua haujlwm li cas kom tsis muaj menyuam
UV tuaj yeem rhuav tshem cov qauv tsim qauv ntawm DNA (Bacilli) lossis RNA (Kab mob) ntawm cov kab mob me me, thiab ua rau cov kab mob tuag lossis tsis tuaj yeem tsim tawm, thiaj li ua tiav lub hom phiaj kom tsis muaj menyuam.

Yog li Lo Lus Teb Yog.
UVC teeb pom kev zoo tuaj yeem tua Covid-19

Mercury UVC teeb thiab LED UVC teeb
Keeb kwm, cov teeb tsa mercury tsuas yog kev xaiv rau UV kom tsis muaj menyuam. Txawm li cas los xij, Minamata Cov Lus Cog Tseg ntawm cov mercury tau nkag mus rau Suav txij li Lub Yim Hli 16, 2017. Cov Lus Cog Tseg yuav tsum tau tsim, muag thiab xa tawm cov mercury uas muaj cov khoom lag luam uas tau hais hauv Daim Ntawv Cog Lus yuav tsum txwv txij lub Ib Hlis 1, 2021, thiab teeb pom kev zoo mercury yuav tsum muaj npe nyob ntawm no. Yog li ntawd, tsis muaj ntau lub sij hawm tseg rau cov teeb tsa mercury, thiab UVC LED yog qhov kev ntseeg siab dua.


Lub sij hawm tshaj tawm: Lub Ib Hlis-05-2021