Cov hnab yas ib puag ncig yog luv rau ntau hom kev siv lub hnab yas biodegradable. Nrog rau kev txhim kho ntawm thev naus laus zis, ntau yam ntaub ntawv uas tuaj yeem hloov cov tsoos PE plastics tshwm sim, suav nrog Pla, PBS, PBS thiab lwm yam khoom siv polymer. Tuaj yeem hloov cov tsoos tsoos PE yas hnab yas. Kev tiv thaiv ib puag ncig yas tau siv dav: khw muag khoom lag luam yob-yob-khaws cov hnab ntawv tshiab, thiab mulch zaj duab xis tau siv dav hauv Suav teb. Jilin xeev tau saws cov pla (polylactic acid) hloov cov hnab yas yas tsoos, thiab ua tiav cov txiaj ntsig zoo. Hauv Sanya nroog, Hainan xeev, cov hmoov txhuv nplej siab biodegradotable hnab yas kuj tseem tau nkag mus siv ntau li cov khw muag khoom thiab cov tsev so.
Feem ntau hais lus, tsis muaj ib lub hnab uas ua tiav tag nrho. Tsuas yog qee lub hnab yas tuaj yeem tsis yooj yim tom qab ntxiv qee cov khoom xyaw. Ntawd yog, biodegradable yas. Ntxiv ib qho kev ntxiv ntawm cov khoom sib ntxiv (xws li cov hmoov txhuv nplej siab, hloov kho cov khoom lag luam, cov duab ntim khoom, thiab cov duab ntim khoom, thiab cov duab ntim khoom, thiab lwm yam. Muaj 19 chav nyob uas tsim kho lossis tsim cov biodegradable plastics hauv Beijing. Cov kev ntsuam xyuas tau qhia tias feem ntau degradable plastics pib ua nyias, poob phaus, thiab poob lub zog tom qab raug rau ib puag ncig dav dav rau 3 lub hlis, thiab maj mam tawg ua tej daim. Yog tias cov tawg no tau faus nyob rau hauv cov khib nyiab lossis av, qhov cuam tshuam tsis pom tseeb. Muaj plaub qhov tsis txaus siab nyob rau hauv kev siv cov tsis ruaj khov plastics: ib qho yog kom haus cov zaub mov ntau dua; Lwm tus yog tias kev siv cov khoom lag luam yooj yim yas tseem tsis tuaj yeem tshem tawm "kev ua kom pom kev qias neeg"; Qhov thib peb yog vim vim li cas rau cov txuj ci, siv cov khoom siv yas cais tau tsis tuaj yeem daws tau cov kev cuam tshuam ib puag ncig "kev muaj peev xwm muaj kev phom sij"; Plaub, unradadable plastics yog qhov nyuaj rau kev rov ua haujlwm vim tias lawv muaj cov tshuaj ntxiv tshwj xeeb.
Qhov tseeb, cov phooj ywg zoo tshaj plaws yog siv cov hnab yas lossis hnab yas ruaj kom txo tau cov nqi. Nyob rau tib lub sijhawm, nws tuaj yeem rov ua tau los ntawm tsoomfwv kom txo cov pa phem ib puag ncig.
Lub sijhawm Post: Oct-08-2021