Nyob rau hauv xyoo tas los no, sustainability tau dhau los ua qhov tseem ceeb rau cov neeg siv khoom thiab kev lag luam ib yam nkaus. Nrog rau kev txhawj xeeb loj zuj zus ntawm cov pa phem, cov hnab polyethylene (PE) tau raug tshuaj xyuas. Hauv tsab xov xwm no, peb yuav tshawb txog eco-friendliness ntawm PE hnab, lawv cov kev cuam tshuam ib puag ncig, thiab seb lawv puas tuaj yeem suav tias yog qhov kev xaiv ruaj khov.
PE Hnab yog dab tsi?
PE hnab yog tsim los ntawm polyethylene, feem ntau siv yas thoob ntiaj teb. Lawv paub txog lawv cov kav ntev, yoog raws, thiab tiv thaiv kom ya raws, ua rau lawv nrov hauv kev ntim khoom, kav khw, thiab khaws cia. PE hnab tuaj nyob rau hauv ntau hom, nrog rau cov hnab ziplock, lub hnab ntim khoom noj, thiab cov khoom ntim, thiab tau txais txiaj ntsig rau lawv cov nqi-zoo thiab yooj yim.
Ib puag ncig cuam tshuam ntawm PE Hnab
Kev cuam tshuam ib puag ncig ntawm PE hnab pib nrog lawv cov khoom. Polyethylene yog muab los ntawm cov fossil fuels uas tsis tuaj yeem rov ua dua tshiab, feem ntau yog cov roj av lossis cov nkev. Cov txheej txheem tsim khoom siv lub zog tseem ceeb thiab ua rau cov pa roj carbon emissions, ua rau lub ntiaj teb sov sov. Txawm li cas los xij, PE hnab yog sib dua thiab xav tau cov khoom siv tsawg dua li ntau lwm txoj hauv kev, txo kev siv hluav taws xob tag nrho piv rau cov khoom tuab, hnyav dua li cov hnab ntawv lossis cov hnab ntaub rov siv dua.
Decomposition Rate thiab Ecosystem cuam tshuam
Ib qho kev txhawj xeeb tseem ceeb nrog PE hnab yog lawv lub neej ntev hauv ib puag ncig. PE hnab tsis decompose sai; nyob rau hauv qhov chaw pov tseg, lawv tuaj yeem siv ntau pua xyoo los rhuav tshem vim tsis muaj hnub ci thiab oxygen. Nyob rau hauv ib puag ncig ntuj, xws li dej hiav txwv thiab hav zoov, lawv tuaj yeem tawg mus rau hauv microplastics, ua rau muaj kev hem thawj rau cov tsiaj qus uas tuaj yeem noj lossis nkag mus rau hauv cov khoom. Qhov kev degradation qeeb no ua rau muaj kuab paug yas, uas yog ib qho teeb meem loj ntawm ib puag ncig.
Recyclability ntawm PE Hnab
PE hnab yog recyclable, tab sis tus nqi rov ua dua yog qhov tsawg dua piv rau lwm cov ntaub ntawv. Ntau cov kev pabcuam rov ua dua tshiab tsis lees txais PE hnab vim lawv txoj kev nyiam ua rau cov tshuab sorting tshuab. Txawm li cas los xij, ntau lub khw muag khoom thiab cov chaw tsim khoom tshwj xeeb lees txais cov hnab no rau kev rov ua dua tshiab, qhov chaw lawv tuaj yeem rov ua dua tshiab rau hauv cov khoom yas tshiab xws li cov ntoo sib xyaw lossis cov hnab tshiab. Kev paub ntau ntxiv thiab kev txhim kho hauv cov khoom siv rov ua dua tshiab tuaj yeem txo qhov hnyav ntawm ib puag ncig ntawm PE hnab.
Lub hnab PE piv rau lwm lub hnab li cas?
Thaum muab piv rau ib puag ncig kev cuam tshuam ntawm PE hnab rau lwm yam xws li ntawv lossis lwm hom yas, cov txiaj ntsig tau sib xyaw. Cov hnab ntawv, thaum biodegradable, xav tau ntau lub zog thiab dej los tsim. Cov kev tshawb fawb qhia tias cov hnab ntawv muaj cov pa roj carbon ntau dua vim yog cov peev txheej uas xav tau rau kev ua liaj ua teb ntoo, kev tsim khoom, thiab kev thauj mus los. Ntawm qhov tod tes, cov hnab yas tuab dua qub (feem ntau yog ua los ntawm polypropylene) thiab hnab ntaub yuav tsum tau siv ntau yam los cuam tshuam lawv cov kev cuam tshuam ntau dua. PE hnab, txawm tias lawv qhov kev poob qis, muaj qhov pib me me tab sis tsis zoo li eco-phooj ywg yog tias lawv xaus rau hauv ib puag ncig es tsis txhob siv dua.
Kev Tshawb Fawb thiab Kev Tshawb Fawb
Ib txoj kev tshawb fawb xyoo 2018 los ntawm Danish Ministry of Environment and Food piv cov kev ntsuas lub neej ntawm ntau hom hnab khw. Nws pom tias cov hnab PE muaj qhov cuam tshuam rau ib puag ncig qis tshaj plaws ntawm kev siv dej, kev siv hluav taws xob, thiab cov pa hluav taws xob hauv tsev cog khoom thaum rov siv ntau zaus lossis rov ua dua tshiab. Txawm li cas los xij, txoj kev tshawb fawb tseem tau hais txog qhov tseem ceeb ntawm kev pov tseg kom zoo kom txo qis kev pheej hmoo ntawm kev ua qias tuaj. Cov ntaub ntawv no qhia tias thaum lub hnab PE tsis yog tag nrho tsis muaj nqi ib puag ncig, lawv tuaj yeem yog qhov kev xaiv ruaj khov dua li lwm txoj hauv kev, tshwj xeeb tshaj yog thaum rov ua dua.
Xaus
PE hnab, zoo li tej yam khoom yas, muaj ib puag ncig zoo thiab cons. Lawv cov nqi qis qis, rov ua dua tshiab, thiab ntau yam ua rau lawv muaj txiaj ntsig, tab sis lawv lub sijhawm decomposition ntev thiab muaj peev xwm ua rau muaj kuab paug yas yog qhov kev txhawj xeeb tseem ceeb. Los ntawm kev nce tus nqi rov ua dua tshiab, txhawb nqa lub luag haujlwm pov tseg, thiab xaiv cov kev hloov hauv eco-phooj ywg uas ua tau, cov neeg siv khoom tuaj yeem pab txo qis kev cuam tshuam ib puag ncig ntawm PE hnab. Ib yam li txhua yam khoom siv, tus yuam sij rau kev ruaj ntseg yog nyob rau hauv kev nkag siab tag nrho lub neej voj voog thiab txiav txim siab paub.
Yog xav paub ntxiv txog kev cuam tshuam ib puag ncig ntawm cov yas thiab yuav ua li cas txo cov pov tseg yas, xav txog kev nyeem cov ntaub ntawv los ntawmEnvironmental Protection Agency.
Post lub sij hawm: Oct-24-2024
