hnab yas taug kev hauv dej hiav txwv rhuav tshem vim kev txav mus tas li thiab UV teeb. Nws yuav siv sij hawm lawv 20 xyoo kom decompose thiab khom. Lub raj mis yas tuaj yeem siv sijhawm txog 450 xyoo, thaum cov kab nuv ntses yuav siv li 600 xyoo.
Dab tsi ua rau cov yas biodegradable?
Biodegradable plastics yog ua los ntawm tib cov ntaub ntawv raws li cov pa roj av raws li cov yas, tab sis nrog cov tshuaj ntau dua. Cov tshuaj ntxiv no ua rau cov yas tawg sai dua thaum raug huab cua thiab lub teeb. … Nws tawg ua tej daim me me ntawm cov yas.
Ntev npaum li cas nws yuav siv cov yas kom biodegrade?
Zoo, raws li qee cov kws tshawb fawb, lawv kwv yees tias vim tias PET siv rau hauv cov khoom xws li hnab yas, lub raj mis dej thiab cov quav yas, nws tuaj yeem siv sijhawm nce mus txog 450 xyoo mus decompose.
Yuav siv sijhawm ntev npaum li cas rau cov yas kom decompose yog yas biodegradable?
Raws li BBC Science Focus, biodegradable plastics siv tsuas yog peb mus rau rau lub hlis kom tawg tag nrho, nrawm dua li cov yas yas uas tuaj yeem siv ntau pua xyoo.
Yuav ua li cas cov yas decompose rau hauv?
Biodegradable plastics muaj cov tshuaj ntxiv uas txhawb cov kab mob kom noj cov yas, siv lawv cov enzymes los rhuav tshem cov yas molecular bonds. … Thaum cov microbes tau ua tiav lawv txoj haujlwm, txhua yam uas tshuav tom qab yog dej, carbon dioxide, thiab methane.
