E fa'afefea ona e iloa po'o se mea e mafai ona pala?E tolu fa'ailoga e mana'omia ona va'ava'ai i ai: fua faatatau fa'aleagaina, oloa fa'ai'u ma mea uamea mamafa.O se tasi oi latou e le ausia tulaga faatonuina, o lea e le mafai ai ona faʻaogaina faʻainisinia.
I le taimi nei, e lua ituaiga autu o pseudo-degraded plastics: suitulaga manatu ma toega pe a uma ona pala.O le mafua'aga autu o le fa'atupuina o le tele o palasitika fa'aleaogaina ona o le faiga fa'atapula'a o palasiti ua fa'atupuina ai le fa'atuputupula'ia o mana'oga i totonu o le atunu'u mo palasitika leaga.I le taimi nei, o le "faʻatapulaʻa palasitika" e faʻasaina atoa i luga o vao palasitika, ma e mafai ona ufiufi le gafatia faʻaleagaina i totonu.I le lumanaʻi, o mea faʻaleagaina o le a faasolosolo malie ona taʻavale ma faʻaogaina i luga o meaʻai uma, ma o le sootaga i le va o le sapalai ma le manaʻoga e manaʻomia ona faʻafetaui malie, ae o tulaga ma le vaavaaiga e le lava.Faʻatasi ma le tau maualuga o mea faʻaleagaina moni, o pisinisi o loʻo faʻauluina e tului, e vaivai le mafai ona iloagofie tagata, e mafua ai le faʻaleagaina sese.
1. Ua suia le manatu o le palasitika e le faʻaleagaina
O palasitika fa'aleaganu'u ma mea fa'aleaga fa'aleaga eseese po'o palasitika fa'aolaola o lo'o fa'afefiloi fa'atasi, ma suia le manatu o "mea'ai-mea'ai" ma "oloa puipuia o le si'osi'omaga".O le fua faʻaleagaina moni e maualalo i le faaiuga, lea e le fetaui ma manaʻoga o oloa faʻaleagaina ma tulaga faʻaola.
Na taʻua e Wu Yufeng, o se polofesa i le Institute of Circular Economy i le Beijing University of Technology, i se faatalanoaga ma le Consumption Daily e faapea o le "meaʻai fua" ua na o se tulaga faaleatunuu mo le saogalemu o meafaitino, ae le o se faamaoniga o le siosiomaga.“A tatou talanoa e uiga i 'palasitika biodegradable,' o lona uiga o palasitika, i lalo o ni tulaga patino, e iu lava ina malepe atoatoa i le kaponi dioxide po o le methane, vai ma isi biomass.O le mea moni, peita'i, o le tele o mea e ta'ua o 'palasitika biodegradable' o mea fa'afefiloi e tu'ufa'atasia ai palasitika masani ma mea fa'aopoopo fa'aleagaina po'o palasitika fa'aolaola.E le gata i lea, o nisi o oloa palasitika e oʻo lava i le faʻaaogaina o mea e le mafai ona faʻaleagaina, e pei o le polyethylene, faʻaopopo le faʻamaʻi faʻamaʻi faʻamaʻi, photodegradation agent, fai mai 'degradable', faʻaalia le maketi, faʻalavelave le maketi.
2. Toega pe a uma ona pala
Faʻaopoopoina se vaega faʻapitoa o le masoa, e ala i mea faʻapitoa o mea faʻaleagaina e mafai ona paʻu i lalo, PE, PP, PVC, ma isi mea faʻaleagaina e le gata e le mafai ona faʻafefeina e le siosiomaga, ae ona e le o vaʻaia e mata le lavalava o le a tumau pea i le siosiomaga. , e le gata ina fa'amalieina le toe fa'aaogāina ma le fa'amamāina o le palasitika, o le vaevaeina o palasitika i totonu o le a fa'atupu ai le fa'aleagaina o le si'osi'omaga.
Mo se faʻataʻitaʻiga, D2W ma D2W1 o mea faʻapipiʻi faʻaleagaina.O taga palasitika e faia i le PE-D2W ma le (PE-HD) -D2W1 o taga palasitika faʻamaʻi faʻamaʻiina masani, o le tala lea a Liu Jun, o le faatonu o le Shanghai Institute of Quality Supervision and Inspection Technology ma se polofesa tulaga sinia inisinia, i se faatalanoaga ma Beijing Tala Fou.O loʻo aofia i le taimi nei GB / T 20197-2006 faʻavasegaina o palasitika faʻaleagaina.Ae o le faagasologa o le faʻaleagaina o ia palasitika e faʻaitiʻitia mea lapopoʻa ma malepelepe laiti, ma liua i latou e le vaaia microplastics.
Taimi meli: Nov-23-2022