Cov hnab yas muab faib ua ob pawg.Ib qho yog kom decompose cov hnab ntim khoom.Nws yog ib puag ncig tus phooj ywg lub hnab yuav khoom thiab tsis ua rau muaj kuab paug thiab ua phem rau ib puag ncig.Lub hnab ntim khoom.Vim tias cov hnab yas tsis-degradable yuav ua rau muaj kev phom sij ntau rau ib puag ncig, tib neeg tam sim no nyiam siv cov hnab ntim khoom degradable.Nrog rau qhov tseem ceeb ntawm kev tiv thaiv ib puag ncig, cov hnab yas uas siv los ntawm yuav ua rau muaj teeb meem loj thiab hnyav rau ib puag ncig.Qhov kev thov rau degradation ntawm cov hnab yas yav tom ntej yuav nce ntxiv.
Cov yas degradable, tseem hu ua cov yas degradation ib puag ncig, hais txog cov yas uas ntxiv qee yam ntawm cov khoom siv ntxiv hauv cov txheej txheem tsim khoom kom txo tau nws qhov kev ruaj ntseg, thiab nws yooj yim dua rau degrade hauv ib puag ncig ntuj.Nrog rau kev txhim kho ntawm kev tshawb fawb thiab thev naus laus zis, ntau yam khoom siv uas tuaj yeem hloov cov yas PE tsoos, suav nrog PLA, PHAS, PBA, PBS thiab lwm yam khoom siv polymer.Ob leeg tuaj yeem hloov cov hnab yas PE tsoos.Cov hnab yas degradable ib puag ncig tus phooj ywg tam sim no tau siv dav: thaj chaw thov tseem ceeb suav nrog thaj av ua liaj ua teb, ntau lub hnab ntim hnab, hnab khib nyiab, hnab khw hauv khw, thiab cov khoom siv pov tseg.
Biodegradable yas yog hais txog cov yas uas ua rau degradation los ntawm lub luag hauj lwm ntawm cov kab mob xws li kab mob, pwm (fungi) thiab algae uas muaj nyob rau hauv cov xwm.Cov yas zoo tshaj plaws biodegradable yog ib feem ntawm cov khoom siv molecular siab uas tuaj yeem decomposed los ntawm ib puag ncig cov kab mob tom qab tso tseg, tuaj yeem decomposed tag nrho los ntawm ib puag ncig cov kab mob, thiab nws thiaj li ua inorganic."Paper" yog cov khoom siv biodegradable, thiab "synthetic plastic" yog cov khoom siv polymer.Yog li ntawd, biodegradable yas yog cov khoom siv polymer nrog cov xwm txheej ntawm "paper" thiab "synthetic plastic".Biodegradable yas tuaj yeem muab faib ua ob hom: ua tiav cov yas biodegradable thiab puas biodegradable yas
Kev puas tsuaj biodegradable yas: Ua kom puas biodegradable yas tam sim no feem ntau suav nrog kev hloov pauv cov hmoov txhuv nplej siab (lossis txhaws) polyethylene PE, polypropylene PP, polyvinyl chloride PVC, polystyrene PS, thiab lwm yam.
Ua kom tiav cov yas biodegradable: Ua tiav cov yas biodegradable yog tsim los ntawm ntuj polymers (xws li cov hmoov txhuv nplej siab, cellulose, chitin) lossis cov khoom ua liaj ua teb thiab cov khoom siv sab nraud.Polyester, polystrackic acid, starch / polyvinyl cawv.
Kev tsim kho ntawm cov khoom siv raw ntawm cov hnab yuav khoom
Lub hnab yas decomposable tseem hu ua biodegradable khw hnab.Nws siv cov hmoov txhuv nplej siab thiab pob kws hmoov nplej, thiab lwm yam. Nws yog tsim los ntawm cov khoom siv los ntawm cov nroj tsuag.Cov khoom siv raw no yuav tsis ua rau muaj kev phom sij rau tib neeg lub cev thiab ib puag ncig.
Nws tuaj yeem kho tau hauv thaj av nrog cov hnab ntim khoom degradable.Nws tsuas yog siv sij hawm ib lub sij hawm kom degraded mus rau hauv cov khoom lom thiab ces absorbed los ntawm cov av.Lub hnab yas decomposable tsis tsuas yog tsis muaj kev cuam tshuam rau ib puag ncig, tab sis kuj tuaj yeem ua cov chiv ntawm cov nroj tsuag thiab cov qoob loo, txhawb kev loj hlob ntawm cov nroj tsuag.
Yog li ntawd, kev siv cov hnab ntim khoom degradable yog tam sim no nrov, thiab kev siv cov hnab ntim khoom uas tsis yog-degradable kuj maj mam txo.Tsis muaj -degradable lub hnab yuav khoom yuav ua rau muaj kev puas tsuaj loj rau tib neeg kev noj qab haus huv thiab ib puag ncig ecological.
Kev puas tsuaj ntawm cov hnab ntim khoom tsis-degradable
Cov txheeb ze ntawm cov hnab yuav khoom degradable yog non-degradable khw hnab.Qhov tseeb, cov hnab ntim khoom lag luam zoo tib yam kuj tuaj yeem degraded, tab sis nws tau degraded rau lub sij hawm ntev rau ob puas xyoo.Tsis tas li ntawd, kev siv cov hnab yas hauv tib neeg lub neej muaj ntau heev.Yog tias koj siv cov hnab yas irreplaceable, nws yuav ua rau ecological ib puag ncig ntawm lub ntiaj teb tsis zoo.
Tib neeg tsis muaj txoj hauv kev zoo los rov ua dua lub hnab ntim khoom khib nyiab, xws li incineration lossis landfill.Tsis muaj lub hnab ntim khoom degradable yuav cuam tshuam rau ib puag ncig tsis hais txog txoj kev twg.Piv txwv li, incineration yuav emit ib tug phem tsw thiab tsim ib tug loj npaum li cas ntawm cov tshauv dub;yog tias nws raug kho los ntawm kev pov tseg, lub ntiaj teb yuav siv sij hawm ntau pua xyoo kom decompose lub hnab yas.
Post lub sij hawm: Oct-08-2022