Hoʻopilikia ka Pseudo Degradation i ka mākeke, ʻo ka palena ʻana i ka plastik he ala lōʻihi e hele ai

Pehea ʻoe e ʻike ai inā he biodegradable kekahi mea?Pono e nānā ʻia ʻekolu mau hōʻailona: ka helu degradation pili, ka huahana hope a me ka ʻike metala kaumaha.ʻAʻole kūpono kekahi o lākou i nā kūlana, no laila ʻaʻole hiki ke biodegradable ʻenehana.

I kēia manawa, ʻelua ʻano nui o nā plastic pseudo-degraded: hoʻololi manaʻo a me ke koena ma hope o ka decomposition.ʻO ke kumu nui o ka hana ʻana i ka nui o nā plastic degradable hoʻopunipuni ʻo ia ke kumu o ka hoʻopaʻa ʻana i ka plastic i alakaʻi i ka ulu mau o ka noi home no nā plastic degradable.I kēia manawa, pāpā ʻia ka "plastic restriction" i nā mauʻu plastic, a hiki ke uhi ʻia ka hiki ke hoʻohaʻahaʻa ʻia.I ka wā e hiki mai ana, e ʻōwili ʻia a hoʻohana ʻia i nā mea ʻai meaʻai a pau, a pono e hoʻohālikelike ʻia ka pilina ma waena o ka lako a me ke koi, akā nele nā ​​kūlana a me ka nānā ʻana.Hoʻohui ʻia me ke kumukūʻai kiʻekiʻe o nā mea degradable maoli, alakaʻi ʻia nā ʻoihana e nā makemake, nāwaliwali ka hiki ke ʻike i nā mea kūʻai aku, e hopena i ka hoʻohaʻahaʻa hewa.

1. Hoʻololi ʻia ka manaʻo o ka plastic non-degradable

Hoʻohui pū ʻia nā plastics kuʻuna a me nā mea hoʻohui degradation a i ʻole nā ​​​​palapala biobased, a ua hoʻololi ʻia ka manaʻo o "nā mea ʻai-meaʻai" a me nā "huahana mālama kaiapuni".He haʻahaʻa ka helu degradation maoli i ka hopena, ʻaʻole i kūpono i nā koi o nā huahana degradable a me nā kūlana biochemical.

Ua ʻōlelo ʻo Wu Yufeng, he loea ma ka Institute of Circular Economy ma ke Kulanui o ʻenehana ʻo Beijing, i ka hālāwai ninaninau me Consumption Daily ʻo "ka meaʻai" he kūlana aupuni wale nō ia no ka palekana o nā mea maka, ʻaʻole ka hōʻoia o ke kaiapuni.“Ke kamaʻilio mākou e pili ana i nā 'plastika biodegradable,' ʻo kā mākou ʻōlelo i nā plastics, ma lalo o kekahi mau kūlana, e wāwahi loa i carbon dioxide a i ʻole methane, wai a me nā biomass ʻē aʻe.ʻO ka ʻoiaʻiʻo naʻe, he nui nā mea i kapa ʻia ʻo 'biodegradable plastics' he mau mea hybrid e hoʻohui i nā plastik maʻamau me nā mea hoʻohui hoʻohaʻahaʻa like ʻole a i ʻole nā ​​​​plastika biobased.Eia kekahi, ke hoʻohana nei kekahi mau huahana plastik i nā mea palaka non-degradable, e like me ka polyethylene, hoʻohui i ka oxidation degradation agent, photodegradation agent, i ʻōlelo ʻia 'degradable', ostentatizing i ka mākeke, hoʻopilikia i ka mākeke.

2. Ke koena ma hope o ka decomposition

Hoʻohui i kekahi hapa o ka starch, ma o ka waiwai kino o ka starch biodegradable mea hāʻule, PE, PP, PVC, etc o ka decomposed 'aʻole hiki ke komo wale i ke kaiapuni, akā, no ka mea,ʻaʻole iʻikeʻia e ka maka maka e noho mau i loko o ke kaiapuni. , ʻaʻole kūpono wale i ka hana hou ʻana a me ka hoʻomaʻemaʻe ʻana, ʻo ka ʻāpana o ka plastic i loko e hoʻonui i ka pōʻino i ke kaiapuni.

No ka laʻana, ʻo D2W a me D2W1 nā mea hoʻohui biodegradation oxidized.ʻO nā ʻeke plastik i hana ʻia me PE-D2W a me (PE-HD) -D2W1 he mau ʻeke plastik biodegradation maʻamau, wahi a Liu Jun, ka luna hoʻomalu o ka Shanghai Institute of Quality Supervision and Inspection Technology a me kahi loea ʻenekini kiʻekiʻe, ma kahi ninaninau me Beijing Nūhou.Hoʻokomo ʻia ia i ka hoʻohālikelike ʻana o GB/T 20197-2006 o nā plastic degradable.Akā ʻo ke kaʻina hana o ka hoʻohaʻahaʻa ʻana i ia mau plastics e liʻiliʻi nā mea nui a wāwahi nā mea liʻiliʻi, e hoʻohuli iā lākou i microplastics ʻike ʻole.