Ceev Cov Kev Tshawb Fawb Thiab Kev Txhim Kho Cov Khoom Siv Yas Biodegradable

Kev ua tau zoo ntawm cov khoom yas biodegradable tsis tuaj yeem ua tau raws li cov neeg siv khoom xav tau. Txawm hais tias muaj ntau ntau yam muaj nyob rau hauv kev ua lag luam, cov khoom siv kho tshuab thiab kev ua haujlwm ntawm txhua yam khoom nws tus kheej tsuas yog muaj cov yam ntxwv zoo ntawm ib qho, thiab tseem muaj qhov tsis zoo hauv kev ua tau zoo, uas yuav yog ib qho ntawm cov kev txwv tsis pub siv rau kev lag luam thiab kev nce qib. Thaum tsim cov khoom yas biodegradable, cov tuam txhab lag luam hauv tsev yuav tsum tau them sai sai rau kev ua kom muaj kev ywj pheej ntawm cov cuab yeej cuab tam, cov khoom siv tshiab, thiab kev siv. Vim qhov kev txhim kho tseem ntxov thiab kev tsim cov khoom siv biodegradable yas nyob rau hauv txawv teb chaws, ntau patents tau thov rau, uas tsim ib co kev teeb meem rau domestic qhauj los tsim cov khoom tshiab. Noj cov patents ntawm polylactic acid ua piv txwv, nyob rau hauv 2005, muaj ntau tshaj 1700 txawv teb chaws patents muaj feem xyuam rau polylactic acid, thaum Tuam Tshoj tsuas yog nthuav tawm 145 patents, ntawm uas ntau tshaj ib nrab yog patents ntawm txawv teb chaws tuam txhab uas muag. Yog li ntawd, cov tuam txhab lag luam hauv tsev yuav tsum ntxiv dag zog rau kev tsim cov khoom lag luam nrog kev ywj pheej ntawm cov tswv cuab kev txawj ntse.