Txoj kev tshawb nrhiav pom cov hnab tseem tuaj yeem nqa mus yuav khoom txawm tias muaj kev thov ib puag ncig
Cov hnab yas uas tau lees tias biodegradable tseem tsis zoo thiab tuaj yeem nqa mus yuav khoom peb xyoos tom qab raug cuam tshuam rau ib puag ncig ntuj, ib txoj kev tshawb nrhiav pom.
Kev tshawb fawb thawj zaug tau sim cov hnab ntim khoom siv, ob hom ntawm lub hnab biodegradable thiab cov hnab nqa khoom ib txwm siv tom qab lub sijhawm ntev raug rau lub hiav txwv, huab cua thiab lub ntiaj teb.Tsis muaj ib lub hnab decomposed tag nrho hauv ib puag ncig.
Lub hnab compostable zoo li tau zoo dua li lub hnab ntim biodegradable.Cov qauv hnab ntim khoom siv tau ploj mus tag nrho tom qab peb lub hlis hauv ib puag ncig marine tab sis cov kws tshawb fawb hais tias yuav tsum ua haujlwm ntxiv los tsim kom muaj cov khoom puas tsuaj thiab xav txog tej yam yuav tshwm sim ib puag ncig.
Tom qab peb xyoos lub hnab "biodegradable" uas tau muab faus rau hauv av thiab dej hiav txwv tuaj yeem nqa mus yuav khoom.Lub hnab compostable tam sim no nyob rau hauv cov av 27 lub hlis tom qab muab faus, tab sis thaum kuaj nrog lub khw muag khoom tsis muaj peev xwm tuav tau qhov hnyav yam tsis muaj qhov muag.
Cov kws tshawb fawb los ntawm University of Plymouth's International Marine Litter Research Unit hais tias txoj kev tshawb no - luam tawm nyob rau hauv phau ntawv journal Environmental Science thiab Technology - tsa cov lus nug ntawm seb biodegradable formulations puas tuaj yeem tso siab rau kom muaj kev txaus siab ntawm kev degradation thiab yog li kev daws teeb meem tiag tiag rau teeb meem ntawm cov khib nyiab yas.
Imogen Napper, uas coj txoj kev tshawb no, hais tias:“Tom qab peb xyoos, kuv xav tsis thoob tias ib qho ntawm lub hnab tseem tuaj yeem tuav lub khw muag khoom.Rau cov hnab ntim biodegradable tuaj yeem ua tau yog qhov xav tsis thoob.Thaum koj pom ib yam dab tsi uas sau rau hauv txoj kev ntawd, kuv xav tias koj cia li xav tias nws yuav degrade sai dua li cov hnab pa.Tab sis, tom qab peb xyoos tsawg kawg, peb cov kev tshawb fawb qhia tias tej zaum yuav tsis zoo. "
Kwv yees li ib nrab ntawm cov yas raug muab pov tseg tom qab siv ib zaug thiab ntau qhov ntau dhau los ua cov khib nyiab.
Txawm hais tias muaj kev qhia txog kev them nqi rau cov hnab yas hauv UK, cov khw muag khoom tseem tab tom tsim ntau lab txhua xyoo.Akev tshawb fawb ntawm 10 lub khw muag khoom loj tshaj plawslos ntawm Greenpeace tau tshaj tawm tias lawv tau tsim 1.1bn ib lub hnab yas siv ib zaug, 1.2bn cov hnab yas tsim cov txiv hmab txiv ntoo thiab zaub thiab 958m rov siv tau "lub hnab rau lub neej" ib xyoos.
Txoj kev tshawb fawb Plymouth hais tias nyob rau xyoo 2010 nws tau kwv yees tias 98.6bn cov hnab yas nqa tau muab tso rau hauv EU lag luam thiab txog 100bn ntxiv hnab yas tau muab tso rau txhua xyoo txij li thaum.
Kev paub txog qhov teeb meem ntawm cov pa phem yas thiab qhov cuam tshuam rau ib puag ncig tau ua rau muaj kev loj hlob ntawm kev xaiv biodegradable thiab compostable.
Cov kev tshawb fawb hais tias qee cov khoom lag luam no tau ua lag luam nrog cov lus qhia tias lawv tuaj yeem "rov ua dua tshiab rau hauv qhov xwm txheej sai dua li cov yas zoo tib yam" lossis "cov nroj tsuag hloov pauv rau cov yas".
Tab sis Napper tau hais tias cov txiaj ntsig tau pom tias tsis muaj ib lub hnab tuaj yeem tso siab rau kom pom tias muaj kev puas tsuaj loj hauv peb lub xyoos hauv txhua qhov chaw."Yog li tsis paub meej tias oxo-biodegradable lossis biodegradable formulations muab cov txiaj ntsig zoo ntawm kev puas tsuaj kom muaj txiaj ntsig zoo hauv cov ntsiab lus ntawm kev txo cov khib nyiab hauv hiav txwv, piv rau cov hnab ntim khoom siv," kev tshawb fawb pom.
Cov kev tshawb fawb pom tau hais tias txoj kev uas lub hnab compostable pov tseg yog ib qho tseem ceeb.Lawv yuav tsum biodegrade nyob rau hauv ib tug tswj composting txheej txheem los ntawm kev ua ntawm ib txwm tshwm sim microorganisms.Tab sis tsab ntawv ceeb toom tau hais tias qhov no yuav tsum muaj cov dej khib nyiab tshwj xeeb rau cov khib nyiab khib nyiab - uas UK tsis muaj.
Vegware, uas tsim lub hnab compostable siv nyob rau hauv kev tshawb fawb, hais tias txoj kev tshawb no yog ib lub sij hawm ceeb toom tias tsis muaj cov khoom siv khawv koob, thiab tsuas yog siv tau rau hauv nws qhov chaw raug.
"Nws yog ib qho tseem ceeb kom nkag siab txog qhov sib txawv ntawm cov ntsiab lus xws li compostable, biodegradable thiab (oxo)-degradable," tus cev lus hais."Kev pov tseg cov khoom hauv ib puag ncig yog tseem littering, compostable los yog lwm yam.burying tsis yog composting.Compostable cov ntaub ntawv muaj peev xwm compost nrog tsib yam tseem ceeb - microbes, oxygen, noo noo, warmth thiab lub sij hawm.
Tsib yam sib txawv ntawm cov hnab yas nqa khoom tau muab piv.Cov no suav nrog ob hom oxo-biodegradable hnab, ib lub hnab biodegradable, ib lub hnab compostable, thiab ib lub hnab polyethylene high-density - ib lub hnab yas pa.
Txoj kev tshawb nrhiav pom qhov tsis muaj pov thawj pom tseeb tias biodegradable, oxo-biodegradable thiab compostable cov ntaub ntawv muaj qhov zoo ib puag ncig zoo dua li cov yas yas, thiab lub peev xwm rau kev tawg mus rau hauv microplastics ua rau muaj kev txhawj xeeb ntxiv.
Prof Richard Thompson, tus thawj coj ntawm chav tsev, tau hais tias qhov kev tshawb fawb no tau nug txog seb cov pej xeem puas raug dag.
“Peb ua qauv qhia ntawm no tias cov khoom siv kuaj tsis muaj qhov sib xws, txhim khu kev qha thiab muaj txiaj ntsig zoo hauv cov ntsiab lus ntawm cov khib nyiab marine, "nws hais."Nws txhawj xeeb rau kuv tias cov ntaub ntawv tshiab no tseem muaj teeb meem hauv kev rov ua dua tshiab.Peb txoj kev tshawb fawb qhia txog qhov xav tau ntawm cov qauv hais txog cov khoom siv degradable, qhia meej txog txoj hauv kev pov tseg uas tsim nyog thiab tus nqi ntawm degradation uas tuaj yeem xav tau. "
Post lub sij hawm: May-23-2022
