Isuku yo mu kirere ya covid-19 (HEPA Akayunguruzo)

1.Ikoranabuhanga rya HEPA
HEPA. Sisitemu yo murwego rwohejuru irashobora kugabanya ubucucike bwikubye inshuro miliyoni imwe yumuyaga usanzwe murugo.

Igishushanyo 1 Ihame ryo kweza ikirere HEPA

Urwego rwo muyunguruzi rushingiye kuyungurura ingano yubunini bwa filteri kandi ikora neza. Ibihe bimwe bikomeye bisaba urwego rwohejuru rwa sisitemu yo kuyungurura, nkibyumba byo gukoreramo byubuvuzi, inganda zikora semiconductor, nibindi. Ariko kubintu byinshi, amashusho yo hagati na murwego rwohejuru muyunguruzi arashobora kuzirikana uburinganire bwimikorere no gutembera kwikirere. Nyuma yiperereza, twahisemo amanota ya HEPA13 (amanota yo kuyungurura arimo amanota yo kuyungurura: H11-H14, U15, U16 (EN1822)) kugirango dusukure umwuka mubikorwa rusange.

2. Ni izihe ngaruka z'imirasire ya ultraviolet kuri virusi na bagiteri?
Imirasire y'izuba igizwe n'umucyo w'uburebure butandukanye, uhereye kuri infragre (ubushyuhe) kugeza kumucyo ugaragara kugeza ultraviolet (izuba). Ubushakashatsi bwakozwe bwerekanye kuva kera ko imirasire ya ultraviolet ishobora kwangiza bagiteri zanduye. By'umwihariko, imirasire ya ultraviolet igabanijwemo ibice bitatu, kandi nuburebure bwumuraba, niko imbaraga nyinshi. UV-A irashobora gutera uruhu, kandi igihe kirenze, bizihutisha kwangirika kwuruhu no gusaza. Ultraviolet-B irashobora gutera izuba, ariko birakenewe kandi ko abantu bakora sintetike bakora vitamine D. Ultraviolet-C nitsinda ryinshi cyane ultraviolet, ryungururwa nu gice cya ozone mu kirere. Niba nta ozone igaragara, dukeneye kuba mu nzu. Nibyangiza ubuzima ubwo aribwo bwose bwerekanwe na ultraviolet-C.

Itsinda rya ultraviolet-C rishobora kwangiza ADN na RNA kurwego rwa molekile. Ingaruka ningirakamaro cyane kuri ultraviolet yumurambararo wa 250nm. Kubwibyo, ultraviolet-C irashobora gukoreshwa mugukwirakwiza virusi kugirango yice cyangwa irinde virusi kwongera no kwirinda ikwirakwizwa ryindwara.

Igishushanyo cya 2 Imirasire ya Ultraviolet ihindura imiterere ya ADN / RNA (Inkomoko: NASA)

Iyo imyuka ya mercure ishimishijwe numuyagankuba, itanga urumuri rwa ultraviolet 253.7nm. Ibi byakoreshejwe kumatara ya fluorescent igihe kinini. Iyuka ry’ikirere rizatera fosifore mu mucyo urumuri rwa fluoresce, bityo imirasire ya ultraviolet ihinduka urumuri rugaragara, rushobora gukoreshwa mu gucana. Igikoresho gikurura UV kirashobora gukumira imirasire iyo ari yo yose. Amatara ya UV-C ashingiye kuri mercure akoresha ihame rimwe, ariko aho gukoresha fosifore, bakoresha ikirahure kitari UV gikurura, cyemerera UV-C kurekurwa. Kimwe mubibi byamatara ya mercure nuko nayo asohora kuri 185nm, azabyara ozone, tri-molekile ya ogisijeni. Nubwo iturinda imirasire ya ultraviolet ahantu hirengeye kandi ikora nka fungiside mubikorwa bimwe na bimwe, ozone nayo irahumeka kandi ihumanya. Kubwibyo, amatara menshi ya UV-C aravurwa kugirango yinjize imyuka ya 185nm. Imirasire ya Ultraviolet irashobora kandi kubyara diode itanga urumuri (LED), kandi imikorere yabo nubuzima bwabo bihora bitera imbere.