Tam sim no, cov ntaub ntawv ntim khoom siv ntau yam xws li ntawv, yas, hlau, iav, ntoo, thiab lwm yam, feem ntau muaj cov txheej txheem yooj yim rau kev ua tiav cov ntim ntsuab. Txawm hais tias daim ntawv thov ntim ntawm cov khoom ntim yas yog nce sai thiab ib zaug suav tias yog" dawb paug" los ntawm tib neeg, muaj ntau yam zoo nyob rau hauv cov nqe lus ntawm ntim" ntsuab".
Qhov zoo ntawm" ntsuab" Cov ntaub ntawv ntim khoom yas tau sau tseg raws li hauv qab no:
Ib qho yog tias cov khoom ntim yas tuaj yeem tau txais kev nyiam huv thiab kev nyab xeeb. Cov khoom siv raw yooj yim siv hauv cov khoom ntim yas yog ntau yam khoom siv polymer. Feem ntau, lawv txhua tus muaj cov khoom tu cev zoo. Tsuav yog peb ua tib zoo tswj xyuas cov ntsiab lus monomer thiab nruj me ntsis tswj kev xaiv thiab kev siv cov khoom siv ntxiv, cov khoom siv tu cev ntawm cov khoom ntim yas tuaj yeem lav tag nrho.
Qhov thib ob yog ntau yam khoom ntim yas, feem ntau tuaj yeem ua tiav cov khoom huv huv thiab tsis txhob muaj kuab paug ib puag ncig.
Qhov thib peb yog cov khoom ntim yas, uas yog cov thermoplastics, uas tuaj yeem ua kom sov thiab yaj rau ntau zaus thiab muaj cov khoom siv rov ua dua tshiab thiab rov ua dua tshiab.
Plaub, feem ntau ntawm lawv yog combustible, thiab cov pov tseg kuj raug kho los ntawm incineration thiab tshav kub zog yuav rov qab tau.
Thib tsib, kev txhim kho thiab kev siv cov yas degradable nyob rau hauv xyoo tas los no tau ntxiv daws qhov teeb meem ib puag ncig ntawm cov khoom ntim yas pov tseg thiab tsim kom muaj kev pom zoo.
Tsis tas li ntawd, kev lag luam ntim yas tau sau ntau qhov tseem ceeb hauv kev txhim kho kev tiv thaiv ib puag ncig ntawm cov khoom ntim yas. Piv txwv li, suav nrog cov kev paub tseem ceeb ntawm kev txhim kho kev hloov pauv ntawm cov khoom ntim yas pov tseg rau kev tiv thaiv ib puag ncig-cov ntsiab lus (xws li txo qis, rov siv dua, rov ua dua thiab txhim kho cov yas degradable). Kev xyaum tau ua pov thawj tias los ntawm cov kev ntsuas no, ib puag ncig muaj kuab paug los ntawm cov khoom ntim yas pov tseg nkag mus rau hauv ib puag ncig ntuj tuaj yeem txo tau zoo.
Yog li ntawd, peb yuav tsum muaj kev ntseeg siab tag nrho hauv kev ua haujlwm ntim zaub ntsuab