Raws li lub ntiaj teb no tseem ceeb dua rau kev ruaj khov, kev lag luam khob ntawv yog qhov kev hloov pauv loj. Kev lig kev cai, kev tsim cov khob ntawv tau tso siab rau polyethylene ntau heev(PE) ntawv yob, uas muaj cov khoom tsim nyog tsis muaj dej kom ntseeg tau tias cov dej haus tsis txhob xau thaum ua haujlwm. Txawm li cas los xij, nrog kev txhawj xeeb ntawm ib puag ncig thiab kev tswj hwm nruj zuj zus, kev lag luam tam sim no tig mus rau lwm txoj kev nyiam ib puag ncig.

PE daim ntawv yob tau ntev ua lub hauv paus ntawm kev tsim cov ntawv khob, muab cov kav ntev thiab tsis muaj dej noo. Txawm li cas los xij, kev cuam tshuam ib puag ncig ntawm cov txheej txheem yas tau ua rau cov tuam txhab nrhiav kev xaiv biodegradable. Qhov kev hloov no yog ntau tshaj li qhov sib txawv; nws sawv cev rau qhov kev hloov pauv tseem ceeb hauv kev lag luam txoj hauv kev rau cov khoom tsim thiab xaiv cov khoom siv.

Kev tsim kho tshiab hauv cov txheej txheem txheej txheej yog tsav kev tsim cov khoom siv biodegradable thiab compostable uas tuaj yeem hloov tau cov txheej txheem PE. Cov ntaub ntawv tshiab no khaws cov khoom tseem ceeb uas yuav tsum tau muaj ntawm cov khob ntawv, xws li cov dej tsis zoo thiab kev ua haujlwm zoo, thaum tseem ua kom cov khob ntawv tuaj yeem decompose nyob rau hauv ib puag ncig. Qhov kev hloov pauv no yog qhov tseem ceeb vim tias cov neeg siv khoom tau paub ntau ntxiv txog lawv cov hneev taw ecological thiab xav tau cov khoom lag luam uas sib haum nrog lawv cov txiaj ntsig.

Tsis tas li ntawd, kev qhia txog cov txheej txheem degradable tsis txwv rau cov khob lawv tus kheej. Tag nrho cov saw hlau, los ntawm cov khoom siv raw mus rau cov khoom kawg, tau raug tshuaj xyuas kom txo qis ib puag ncig. Qhov no suav nrog kev siv cov kev coj ua kom ruaj khov hauv kev tsim cov ntawv thaub qab thiab lwm yam khoom ntawm cov ntawv khob kiv cua.

Hauv kev xaus, lub neej yav tom ntej ntawm daim ntawv khob kev lag luam yog ci ntsa iab vim nws siv txoj hauv kev kom ruaj khov dua. Los ntawm kev hloov ntawmwaterproof PE ntawv yobrau cov ntaub ntawv degradable, kev lag luam tsis yog tsuas yog ua tau raws li cov kev cai, tab sis kuj teb rau kev hu rau lub ntiaj teb ntsuab. Raws li cov kev tsim kho tshiab no txuas ntxiv txhim kho, peb tuaj yeem cia siab tias yuav pom lub cim tshiab ntawm cov khob ntawv uas yog ob qho tib si siv tau thiab zoo ib puag ncig.

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