Okwangoku, umgangatho weekomityi zephepha ezilahlayo kwiimarike azilingani, ingozi efihliweyo inkulu.Abanye abenzi beekomityi zephepha bongeza izikhanyisi ze-fluorescent ukuze zibonakale zimhlophe.Izinto zefluorescent zibangela ukuba iiseli ziguquke kwaye zibenakho umhlaza xa zingena emzimbeni.Ukuze wenze indebe yamanzi, ingaphakathi lendebe lifakwe ifilimu ye-polyethylene engenamanzi.I-polyethylene yeyona khemikhali ikhuselekileyo ekusetyenzweni kokutya, kodwa ukuba izinto ezikhethiweyo azilunganga okanye itekhnoloji yokucubungula ayifikanga kwinqanaba, iikhompawundi ze-carbonyl zinokuthi zenziwe nge-oxidized ngexesha lokunyibilika okanye ukugquma i-polyethylene kwikomityi yephepha, kwaye i-carbonyl ikhompawundi ayiguquguquki. ngokulula kwiqondo lobushushu begumbi, kodwa inokumka ngumphunga xa ikomityi yephepha izaliswe ngamanzi ashushu, ukuze abantu bawanuke.Nangona akukho zifundo zokuqinisekisa ukuba iikhompawundi ze-carbonyl ezikhutshwe kwiikomityi zephepha ziya kuzisa nayiphi na ingozi emzimbeni womntu, kodwa kuhlalutyo lwethiyori ngokubanzi, ukuthathwa kwexesha elide kule ngqungquthela yezinto eziphilayo, kufuneka kube yingozi kumzimba womntu.Ukukhathazeka ngakumbi kukuba ezinye iikomityi zephepha ezikumgangatho ophantsi zisebenzisa i-polyethylene ehlaziyiweyo, kwinkqubo yokuhlaziya iya kuba neenguqu eziqhekezayo, ezikhokelela kwinani leekhompawundi ezinobungozi, ekusebenziseni ukufuduka kwamanzi ngokulula.
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Enyanisweni, ukhetho lweekomityi zephepha kunye nokuthenga ukutya kuyafana, kufuneka ubone ukupakishwa kwekomityi yephepha akukho logo ye-QS ecacileyo, ulwazi lomenzi, umhla wokuvelisa.Sukunqwenela ixabiso eliphantsi kwaye uthenge iikomityi zephepha ezingenaphepha.Ukongeza, kufuneka ubone ngokucacileyo umda wesicelo oboniswe kwiphakheji.Enyanisweni, ukhetho olufanelekileyo lweekomityi zephepha lufana nokuthenga ukutya, kufuneka ubone ukupakishwa kwekomityi yephepha akukho logo ye-QS ecacileyo, ulwazi lomenzi, umhla wokuvelisa.Sukunqwenela ixabiso eliphantsi kwaye uthenge iikomityi zephepha ezingenaphepha.Kwakhona ufuna ukubona ngokucacileyo ububanzi besicelo kwiphakheji, ikomityi yephepha elahlayo rhoqo kukubonisa ubushushu obusebenzayo bekomityi yephepha, ukuba uthenga ikomityi yesiselo esibandayo akufanele isetyenziswe ukugcwalisa amanzi ashushu, ukuze ungavuzi. kwaye utshise.Ezinye iikomityi ezinkulu zephepha lokutya okukhawulezayo zikhuselekile ukuba zisetyenziswe xa usitya ngaphandle.Imekobume imbi, akukho ndawo zokutyela mvume yezempilo, ukusetyenziswa kweekomityi zephepha kunzima ukukhusela.Ngaphezu koko, kwindawo yokutyela enjalo, ukhuseleko lokutya aluqinisekiswanga, nokuba “indlela yokubulala iintsholongwane yemizuzu emi-5” iyasebenza ngokwenene ayinamsebenzi, okanye ungatyi nakuloo ndawo.
Ixesha lokuposa: Apr-04-2023