1.Biodegradation hnab, Biodegradation hnab yog lub hnab muaj peev xwm decomposed los ntawm cov kab mob los yog lwm yam kab mob.Hais txog 500 billion mus rau 1 trillion hnab yas siv txhua txhua xyoo. Biodegradation hnab yog cov hnab uas muaj peev xwm decomposed los ntawm cov kab mob los yog lwm yam kab mob.Hais txog 500 billion mus rau 1 trillion hnab yas siv txhua xyoo.
2.Qhov txawv ntawm "biodegradable" thiab "compostable"
Hauv cov ntsiab lus, lo lus biodegradable muaj lub ntsiab lus txawv dua li compost.Biodegradable tsuas yog txhais tau hais tias cov khoom tuaj yeem decomposed los ntawm cov kab mob los yog lwm yam kab mob, thiab "compost" nyob rau hauv kev lag luam yas yog txhais raws li lub peev xwm decompose nyob rau hauv ib tug aerobic ib puag ncig tswj nyob rau hauv tej yam kub thiab humidity tej yam kev mob.Compospost yog lub peev xwm mus biodecomposed nyob rau hauv cov ntaub ntawv decomposable nyob rau hauv cov ntaub ntawv decomposable. carbon dioxide, dej, inorganic compounds thiab biomass ntawm tus nqi raws li
Kev suav nrog "inorganic khoom" tsis suav nrog cov khoom kawg los ntawm kev suav tias yog compost lossis humus, uas yog cov khoom siv organic nkaus xwb. Qhov tseeb, xxx tus qauv xav tau rau cov yas hu ua compost raws li ASTM txhais yog tias nws yuav tsum ploj ntawm tus nqi tib yam li lwm yam uas ib tus twb paub txog compost raws li cov lus txhais. Cov hnab yas tuaj yeem ua los ntawm cov yas uas muaj ntau yam polymer (piv txwv li, polyethylene) lossis polypropylene thiab sib xyaw nrog cov khoom ntxiv uas ua rau polymer (polyethylene) degradation thiab tom qab ntawd biodegradable vim.
3.Material rau lub hnab biodegradable
muaj zog li khoom thiab txhim khu kev qha raws li ib txwm (tsuas yog polyethylene) hnab.Ntau lub hnab kuj yog ua los ntawm cov ntawv, cov ntaub ntawv organic, los yog polyhexanolactone. "Cov pej xeem pom biodegradable yog tej yam yees siv," txawm hais tias lo lus tau siv dav, raws li RamaniNarayan, kws kho mob ntawm East Lansing Michigan State University thiab tus kws pab tswv yim ntawm lub koom haum rau Biodegradable Plastics.
4.Recycling ntawm lub hnab biodegradable.
Cov pov tseg hauv cov nroj tsuag feem ntau tuaj yeem rov ua dua tshiab, tab sis nws nyuaj rau kev txheeb xyuas thiab rov ua dua tom qab noj.Bio-based polymers tuaj yeem ua paug rau kev rov ua dua ntawm lwm cov polymers ntau dua.While manufacturers ntawm aerobic biodegradable plastics thov tias lawv lub hnab rov ua dua, ntau cov yas zaj duab xis recyclers yuav tsis lees txais lawv vim tias tsis muaj kev kawm ntev ntev ntawm cov khoom siv ntxiv rau kev rov ua dua tshiab. Biodegradable Plastics (BPI) tau hais tias cov formulations ntawm additives nyob rau hauv oxidized films sib txawv, uas qhia ntau variability nyob rau hauv lub recycling txheej txheem.
Post lub sij hawm: Jun-15-2022
