Dab tsi yog qhov txawv ntawm biodegradable, compostable, thiab biodegradable hnab yas?

Cov hnab yas qub
Dab tsi ua rau cov hnab yas tsoos ua rau peb ib puag ncig? Cia kuv ua lej. Ib leeg-siv hnab yas muaj qhov nruab nrab lifespan ntawm 12 feeb, thiab 2 lab ntawm lawv siv txhua txhua 60 vib nas this thoob ntiaj teb. Cov hnab polyethylene yog tsim los ntawm cov khoom siv tsis tau txuas ntxiv dua tshiab thiab ua rau muaj kev phom sij rau cov dej hauv hiav txwv vim lawv tsis muaj biodegradable. Hloov chaw, lawv yuav tawg mus rau hauv cov khoom me me thiab me dua ntau pua xyoo, ua rau suav tsis txheeb puas tsuaj rau lub ntiaj teb ecosystems.

Biodegradable hnab yas
Hauv luv luv, qee yam kab mob yog degradable thaum lawv tawg los ntawm qee yam kab mob, xws li fungi lossis kab mob. Biodegradable hnab yog tsim los ntawm cov khoom siv cog qoob loo, xws li pob kws thiab nplej hmoov nplej, tsis yog roj av. Txawm li cas los xij, rau cov yas no, lub hnab yuav tsum muaj qee yam kev mob los pib biodegrading. Ua ntej tshaj plaws, qhov kub yuav tsum ncav cuag 50 degrees Celsius. Qhov thib ob, lub hnab yuav tsum raug ultraviolet lub teeb. Nyob rau hauv ib puag ncig marine, nws nyuaj rau koj kom ua tau raws li ib qho ntawm ob qho xwm txheej saum toj no. Ntxiv rau, yog tias cov hnab biodegradable raug xa mus rau qhov chaw pov tseg, lawv tawg tsis muaj oxygen los tsim cov methane, cov pa roj carbon dioxide uas muaj 21 npaug ntawm lub zog sov dua li carbon dioxide.

Biodegradable los yog "oxo-degradable" hnab yas
Cov khoom biodegradable tsis muaj cov kab mob nyob ua ib feem tseem ceeb ntawm cov txheej txheem decomposition. Biodegradable pouches tsis tuaj yeem muab cais ua biodegradable lossis compostable. Hloov chaw, cov tshuaj ntxiv uas siv hauv cov yas ua rau cov hnab yas tawg sai dua li cov hnab yas txheem. Qhov tseem ceeb, lub hnab touted li "biodegradable" yog qhov tsis muaj txiaj ntsig thiab tseem phem dua rau ib puag ncig! Tom qab decomposing, lub hnab degradable yuav ua sai dua thiab ntau dua microscopic, thiab tseem ua rau muaj kev hem thawj rau lub neej hauv hiav txwv. Microplastics nkag los ntawm qhov qis ntawm cov khoom noj khoom haus, tau noj los ntawm cov tsiaj me, thiab tom qab ntawd txuas ntxiv mus rau cov khoom noj khoom haus raws li cov tsiaj me no tau noj. Xib fwb To·ny Underwood ntawm University of Sydney piav txog cov hnab yas biodegradable li "tsis muaj ntau txoj kev daws teeb meem tshwj tsis yog peb zoo siab los hloov lawv tag nrho rau cov yas me me, tsis yog cov hnab yas loj."

Compostable hnab yas
Lo lus "compostable" yog incredibly dag rau cov neeg siv khoom nruab nrab. Koj yuav xav tias ib lub hnab ntawv sau tias "compostable" txhais tau tias koj tuaj yeem muab tso rau hauv koj lub vaj tsev compost nrog rau cov txiv hmab txiv ntoo thiab zaub, puas yog? yuam kev. Compost hnab yuav biodegraded, tab sis tsuas yog nyob rau hauv tej yam kev mob. Lub hnab compostable yuav tsum tau muab tso rau hauv ib qho chaw composting tshwj xeeb thiab tsis tshua muaj nyob hauv Australia. Cov hnab khib nyiab feem ntau yog tsim los ntawm cov khoom siv cog, thiab thaum muab pov tseg los ntawm cov chaw no, lawv rov qab mus rau lawv cov khoom xyaw tseem ceeb, tab sis qhov teeb meem yog tias txog tam sim no tsuas muaj 150 ntawm lawv nyob hauv Australia.

Kuv puas tuaj yeem siv cov hnab yas rov qab?
Cov hnab yas, biodegradable, biodegradable, thiab compostable hnab tsis tuaj yeem muab tso rau hauv cov khoom siv rov ua dua tshiab hauv tsev. Yog tias muaj dab tsi, lawv tuaj yeem cuam tshuam rau cov txheej txheem rov ua dua tshiab. Txawm li cas los xij, koj lub khw muag khoom hauv zos tuaj yeem siv cov hnab yas rov qab. Qee lub khw muag khoom kuj tseem tuaj yeem rov ua dua "cov hnab ntsuab" uas tau tawg los yog tsis siv lawm. Nrhiav koj qhov chaw nyob ze ntawm no.