III. Kuteteza zachilengedwe Technology-mapu ndi machitidwe
A. Kusankhidwa kwa Zida za Paper Cup Cup
1. Zinthu zosawonongeka
Zinthu zowola zimatanthawuza zinthu zomwe zimatha kuwola kukhala madzi, mpweya woipa, ndi zinthu zina zachilengedwe ndi tizilombo tating'onoting'ono m'chilengedwe. Zipangizo zomwe zimatha kuwonongeka ndi chilengedwe zimakhala ndi magwiridwe antchito abwinoko poyerekeza ndi zida zamapulasitiki. Makapu amapepala opangidwa kuchokera ku zinthu zowola akhoza kuwola mwachilengedwe akagwiritsidwa ntchito. Ndipo kungayambitse kuwononga chilengedwe kochepa. Iwo ndi abwino kusankha kwa pepala makapu zipangizo. Mkati mwa kapu ya ayisikilimu nthawi zambiri imakhala ndi zokutira zina za PE. Kanema wowonongeka wa PE sikuti amangokhala ndi ntchito yoletsa madzi komanso kukana mafuta. Ithanso kuwonongeka mwachilengedwe, yosakonda zachilengedwe, komanso yosavuta kuyikonzanso.
2. Zida zobwezerezedwanso
Zipangizo zobwezerezedwanso ndi zinthu zomwe zimatha kubwezerezedwanso ndi kubwezeretsedwanso kuzinthu zatsopano zikagwiritsidwa ntchito. Makapu amapepala opangidwa kuchokera ku zinthu zobwezerezedwanso akhoza kubwezeredwa ndi kugwiritsidwanso ntchito. Makapu a ayisikilimu a mapepala monga zida zobwezerezedwanso zimachepetsa kuwononga zinthu. Panthawi imodzimodziyo, imachepetsanso kuipitsa ndi kukhudza kwake chilengedwe. Chifukwa chake, ndi chisankho chabwino chakuthupi.
B. Njira zotetezera zachilengedwe panthawi yopanga
1. Njira zotetezera mphamvu ndi kuchepetsa utsi
Zopanga ziyenera kuchepetsa kukhudza kwa chilengedwe. Atha kuchitapo kanthu zopulumutsa mphamvu ndi kuchepetsa utsi. Mwachitsanzo, kugwiritsa ntchito makina ogwira ntchito komanso opatsa mphamvu kwambiri popanga. Ndipo amatha kugwiritsa ntchito mphamvu zoyera, kuyeretsa utsi ndi madzi otayira. Komanso, amatha kulimbikitsa kuyang'anira kagwiritsidwe ntchito ka mphamvu. Njira zimenezi zingachepetse mpweya woipa wa carbon dioxide ndi mpweya wina woipa. Potero, adzathandiza kuteteza chilengedwe.
2. Kasamalidwe ka zipangizo ndi zinyalala
Kuwongolera zida ndi zinyalala ndizofunikiranso pamiyeso yoteteza chilengedwe. Muyesowu umaphatikizapo kugawa zinthu ndi kasamalidwe, kugawa zinyalala ndi kubwezeretsanso. Mwachitsanzo, atha kusankha kugwiritsa ntchito zinthu zowola kapena zobwezerezedwanso. Izi zitha kuchepetsa kuchuluka kwa zinyalala zomwe zimapangidwa. Nthawi yomweyo, zinthu zotayidwa za pepala zitha kubwezeretsedwanso kukhala zida zatsopano zamapepala. Potero, imatha kuchepetsa kuwononga zinthu.
Opanga amatha kusankha zinthu zowola kapena zobwezerezedwanso kuti apange makapu amapepala. Ndipo amatha kuchitapo kanthu pazachilengedwe. (Monga kusunga mphamvu, kuchepetsa utsi, ndi kuwononga zinyalala). Motero, n’zotheka kuchepetsa kukhudzidwa kwa chilengedwe ndi mmene tingathere.