UV Ultraviolet Sterilization Mfundo ndi Kagwiritsidwe: Kutseketsa kwa UV kuli ndi mbiri yakale.Mu 1903, wasayansi wa ku Denmark Niels Finsen anaganiza zopanga chithunzi chamakono potengera mfundo yoletsa kuwala ndipo anapatsidwa Mphotho ya Nobel mu Physiology kapena Medicine.M'zaka zapitazi, kutsekereza kwa UV kwathandizira kwambiri kupewa ndi kuchiza matenda opatsirana kwambiri mwa anthu, monga "tizilombo ziwiri" zomwe zidachitika ku North America m'ma 1990, SARS ku China mu 2003, ndi MERS ku North America. Middle East mu 2012. Posachedwapa, chifukwa cha kuphulika kwakukulu kwa coronavirus yatsopano (2019-nCoV) ku China, kuwala kwa UV kwadziwika chifukwa cha mphamvu yake yopha tizilombo toyambitsa matenda, kukhala njira yofunikira poletsa kufalikira kwa mliriwu ndikuwonetsetsa kuti matendawa afalikira. chitetezo cha moyo.
UV Sterilization Mfundo: Kuwala kwa UV kugawidwa kukhala A-band (315 mpaka 400 nm), B-band (280 mpaka 315 nm), C-band (200 mpaka 280 nm), ndi vacuum UV (100-200 nm) malinga ndi mtundu wake wavelength.Nthawi zambiri, kuwala kwa C-band UV kumagwiritsidwa ntchito potsekereza.Pambuyo poyang'aniridwa ndi kuwala kwa C-band UV, nucleic acid (RNA ndi DNA) yomwe ili mu tizilombo toyambitsa matenda imatenga mphamvu ya ma photon a UV, kuchititsa kuti awiriawiriwo apange polymeri ndi kuteteza mapuloteni kaphatikizidwe, zomwe zimapangitsa kuti tizilombo ting'onoting'ono tithe kuberekana, motero cholinga chotsekereza.
Ubwino wa UV Sterilization:
1) Kutseketsa kwa UV sikutulutsa zotsalira kapena zinthu zapoizoni, kupeŵa kuipitsidwa kwachiwiri kwa chilengedwe ndi makutidwe ndi okosijeni kapena dzimbiri la zinthu zomwe zatsekedwa.
2) Zida zotsekereza za UV ndizosavuta kuziyika ndikuzisamalira, zimakhala ndi ntchito yodalirika, komanso zotsika mtengo.Mankhwala ophera tizilombo toyambitsa matenda monga chlorine, chlorine dioxide, ozoni, ndi peracetic acid ndi poizoni kwambiri, akhoza kuyaka, kuphulika, kapena kuwononga zinthu zomwe zimafuna zofunikira zokhwima komanso zapadera zoletsa zoletsa kupanga, kuyendetsa, kusunga, ndi kugwiritsa ntchito.
3) Kusungunula kwa UV kumakhala kosawerengeka komanso kothandiza kwambiri, komwe kumatha kupha tizilombo toyambitsa matenda ambiri kuphatikizapo protozoa, mabakiteriya, mavairasi, ndi zina zotero. Mlingo wa radiation wa 40 mJ/cm2 (nthawi zambiri umatheka pamene nyali zotsika kwambiri za mercury zimayatsidwa patali. mita imodzi kwa mphindi imodzi) imatha kupha 99,99% ya tizilombo toyambitsa matenda.
Kutsekereza kwa UV kumakhala ndi mawonekedwe otakasuka komanso othandiza kwambiri pa tizilombo toyambitsa matenda, kuphatikiza coronavirus yatsopano (2019-nCoV).Poyerekeza ndi mankhwala ophera tizilombo toyambitsa matenda, kutseketsa kwa UV kuli ndi ubwino wosaipitsa zina, kugwira ntchito modalirika, komanso kuchita bwino kwambiri popha tizilombo toyambitsa matenda, zomwe zingakhale zothandiza kwambiri pothana ndi mliriwu.
Nthawi yotumiza: Aug-01-2023