Biodegradable thiab Compostable

Txhais thiab siv tsis raug

Biodegradable thiab compostable feem ntau siv sib hloov los piav qhia txog kev tawg ntawm cov ntaub ntawv organic hauv cov xwm txheej tshwj xeeb. Txawm li cas los xij, kev siv tsis raug ntawm "biodegradable" hauv kev lag luam tau ua rau muaj kev tsis sib haum xeeb ntawm cov neeg siv khoom. Txhawm rau hais txog qhov no, BioBag feem ntau siv lo lus "compostable" rau peb cov khoom muaj ntawv pov thawj.

Biodegradability

Biodegradability yog hais txog cov khoom muaj peev xwm ua rau muaj kev puas tsuaj lom neeg, tsim CO₂, H₂O, methane, biomass, thiab ntxhia ntsev. Cov kab mob, feem ntau pub los ntawm cov khib nyiab organic, tsav cov txheej txheem no. Txawm li cas los xij, lo lus tsis muaj qhov tshwj xeeb, vim tias tag nrho cov ntaub ntawv nws thiaj li biodegrade, hais txog qhov xav tau los qhia qhov chaw npaj rau biodegradation.

Compostability

Composting cuam tshuam nrog microbial digestion kom zom cov organic pov tseg rau hauv compost, muaj txiaj ntsig zoo rau cov av txhim kho thiab fertilization. Qhov zoo tshaj plaws cua sov, dej, thiab oxygen qib yog tsim nyog rau txoj kev no. Nyob rau hauv pawg ntawm cov organic pov tseg, myriad microbes siv cov ntaub ntawv, hloov lawv mus rau hauv compost. Tag nrho cov compostability yuav tsum tau ua raws li cov qauv nruj xws li European Norm EN 13432 thiab US Standard ASTM D6400, kom ntseeg tau tias tiav decomposition yam tsis muaj teeb meem seem.

International Standards

Sib nrug los ntawm European Standard EN 13432, ntau lub tebchaws muaj lawv tus kheej cov qauv, suav nrog US Standard ASTM D6400 thiab Australian tus qauv AS4736. Cov qauv no yog cov qauv ntsuas rau cov chaw tsim khoom, cov koom haum tswj hwm, cov chaw tsim khoom, cov chaw pov thawj, thiab cov neeg siv khoom.

Cov txheej txheem rau Compostable Materials

Raws li European Standard EN 13432, compostable cov ntaub ntawv yuav tsum tau nthuav tawm:

• Biodegradability tsawg kawg yog 90%, hloov mus rau CO₂hauv rau lub hlis.
• Disintegration, ua rau tsawg dua 10% residue.
• Compatibility nrog cov txheej txheem composting.
• Tsawg qib ntawm cov hlau hnyav, tsis muaj kev cuam tshuam cov compost zoo.

Xaus

Biodegradability ib leeg tsis lav compostability; cov ntaub ntawv kuj yuav tsum disintegrate nyob rau hauv ib lub voj voog composting. Conversely, cov ntaub ntawv uas fragment mus rau hauv uas tsis yog-biodegradable micro-pieces nyob rau hauv ib lub voj voog tsis suav hais tias compostable. EN 13432 sawv cev rau cov qauv kev sib haum xeeb, ua raws li European Cov Lus Qhia 94/62 / EC ntawm kev ntim khoom thiab ntim khoom pov tseg.