I roto i tō tātou ao, he mea nui ngā kapu pepa whakakorekore. Ahakoa hei manaaki i ngā whanaunga, i ngā hoa, i ngā kiritaki rānei, hei huarahi pānuitanga rānei, me whakamahi tēnei kapu pepa. I tēnei wā, ko ngā kapu pepa whakakorekore e whakamahia whānuitia ana i te mākete ko ngā kapu pepa pania PE me ngā kapu pepa pania PLA. Ko tēhea o ēnei rauemi e rua te mea pai ake, ā, he pai ake hoki mō te taiao?
Ko ngā kapu pepa tuku iho he paparanga PE kei runga i te mata o te pepa turanga hei hanga i te mahi ā-wai me te ātete hinu. Kāore e pirau, kāore e taea te whakahoki, ā, he uaua ki te hangarua anō. He uaua ki te hangarua anō ngā kapu pepa pani PE tuku iho nā te mea he uaua ki te wehe i te kiriata polyethylene kei runga i te mata o te kapu pepa mai i te kapu pepa.
He momo rauemi pirau hou te rauemi PLA. He rauemi i tangohia mai i te māngaro kānga. I muri i te whakamahinga, ka taea te pirau e ngā moroiti i roto i te taiao i raro i ngā āhuatanga motuhake, ā, i te mutunga ka taea e te pirau te hanga i te hauhā me te wai.
E whakanuia ana ngā kapu paninga PLA hei huarahi "hoa ki te taiao" hei whakakapi i ngā kapu pepa paninga PE, ko te mea pono he kirihou te PLA, ā, he rite tonu ngā raruraru ki ngā kapu pepa paninga PE. Me tutuki i te PLA ngā whakaritenga e rua kia pirau: te haumākū 50%-60% me te pāmahana 50-70 nekehanga Celsius. I raro i ēnei āhuatanga, ka taea e ngā moroiti te pirau haere i te PLA i muri i ētahi marama, i te roa atu rānei. Heoi, he uaua ki te taiao te eke ki te pāmahana e tika ana mō te pirau. Mena ka makahia ngā hua PLA i te wā e pai ai, kāore e taea te pirau tūturu. Hei pirau i te PLA, me tukatuka ā-umanga i roto i ngā whare whakawairakau motuhake. Inaa, he iti noa ngā whenua kei a rātou ēnei whare ahumahi.
Hei tāpiritanga, kua whakaatuhia e ngā rangahau he tata kore e taea te wehewehe i te tere o te pirau o te PLA mai i ngā kirihou noa i roto i te wai māori me te wai moana. I kī anō te Rōpū Kirihou o Ūropi kāore e taea te kī he pai ake te taiao o ngā kirihou pirau-koiora i ngā kirihou kore-piro tuku iho. Ki te kore e tutuki ngā tikanga pirau, kāore he rerekētanga i waenga i ngā "kirihou pirau" me ngā kirihou noa.
Ahakoa ka taea te pirau i ngā kapu pepa pania PLA, e 2-3 ngā wā teitei ake te utu o ngā rauemi PLA i tō te PE, ā, ko te nui ake o ngā utu o ngā rauemi mata ka piki ake ngā utu. Nō reira, ko ngā kapu pepa whakakorekore matua kei te mākete ko ngā kapu pepa pania PE.
Wā tuku: Hakihea-27-2022
