Nyika inogadzira matani 300 miriyoni emarara epurasitiki gore rega rega.Matani mamiriyoni 300 emarara pasina mubvunzo injodzi huru kune zvakatipoteredza, uyewo ipfuma huru.Zvichienzaniswa nezvinhu zvitsva,mapurasitiki akashandiswa zvakarezvadzikira mune zvese chitarisiko uye kuita, izvo zvisina kuomera vanhu vanoshanda nesimba uye vakangwara pamberi pemabhenefiti makuru.
Kuita kwemapurasitiki akadzokororwa hakuna kunyatso kuderera, uye nyaya huru ichiri kutaridzika kwemhando.Ngatitorei PPmabhegi akarukwa semuenzaniso.Ruvara rwemabhegi akarukwa akagadzirwa nepurasitiki akadzokororwa anogara ariyero kana kuti akagomara.Zvisinei, kubuda kwefluorescent brightenersachinja zvachose mamiriro ezvinhu aya.
Fluorescent whitening agentsivo pachavo havana ruvara, uye vanoshandisa musimboti weruvara rinopindirana nechiedza kuchena.Ruvara rwebhegi rakarukwa rinoshanduka kutsvuka uye kusviba, uye chikonzero chikuru ndechekuti pamusoro pebhegi rakarukwa rinoratidza chiedza cheyero chakawandisa, uye huwandu hwechiedza chinoburitswa hachina kukwana.Fluorescent whitening agents inotora zvisingaoneki ultraviolet mwaranzi uye inoburitsa inooneka yebhuruu yepepuru fluorescence kune yakashama ziso, iyo inogona kunzi ine bane yeyero.Chiedza cheyero uye mwenje webhuruu ndiwo anowirirana mavara, uye kana asangana, anobva achena.Mukuwedzera, chiedza chisingaoneki che ultraviolet chinoshandurwa kuva chiedza chinooneka, chisingaoneki chinowedzera kuratidzwa kwese kwechigadzirwa chacho.
Dambudziko rematambudziko, mikana yose iri mukati medambudziko, chero bedzi nzira yakarurama inowanikwa, mikana inouya.Pakutanga njodzi, mapurasitiki akadzokororwa, nerubatsiro rwe fluorescent whitening agents, akapedza kutendeuka kwakanaka ndokudzokera pachikuva.
Nguva yekutumira: May-12-2023