Kei te mohio koe i tēnei? Ko te ahumiro kei raro mai i ngā tau 1900. Kua whakauru ia ki ō mātau oranga nōnā i ēnei tau. Kei roto i a matou te ahumiro! Kei reira i ngā tākaro me ngā pūtaiwhenua e taea ana te inu, ā, kei reira hoki ngā wāhi kia tiaki me te whakamahana i ā-matou kai. He mīhini ahumiro ā-kē he nui te pupuri i te mana o te hunga, ko te ingoa he High-Density Polyethylene (HDPE). Nui rawa te mana o te HDPE mō te āporo i te nuinga o ngā hiranga pai. He rangatira, he nohu, me te pai noa iho i te taiao.
He pai rawa te HDPE hei materiana mō ngā mea ā-rōpū. (Kei roto i ngā mea katoa te pūmau — i ngā whakapakoko kai me ngā whakapakoko mahi, i ngā hanganga whare me ngā huarahi, i ngā mea e whakamahi nei matou i ngā rā o te ao, me ngā whare hauora.) He hīnati te HDPE, engari he rangatira tonu. He whakatika, he whakarite ki te uru, ki ngā momo rongoā, me te rā.
Tētahi atu mea pai nui o te HDPE, ko tēnā he whakaaetanga kia pai mō ngā kai me ngā wai. Ko tēnā e mahi ana hei materiale rangatira mō te hanga pūtake me ngā pūhoro e noho ai i a tātou kai hikoi me ō mahi whakarongo. Kei tēna wawe ka whakahokia i te taiao, ā, kāore i ngā rerekē pai. Ko tēnā e mahi ana hei HDPE e tika tonu ana ki te taiao. Nā te mea hoki ko te HDPE he materiale totoke, kāore i te waeke haere. Tena ano tētahi take i whakamahia nei e rātau mō ngā mahi nui (pērā i ngā paipī, ngā pākiri, me ngā mea whare) e hiahiatia ana kia noho i te wā.
Kāore, kia mate rawa i ēnei rite atu, ko te HDPE i hangaia mai i tētahi momo whenua iti e mōhiotia nei ko te etane. Ko te etane he tuapeka o te pūharakeke me te whenua iti. Ko te whakamahi i te HDPE ka ora ai te taiao nā te mea i hangaia mai i te rauemi kaimoana. He aha nā, ka whakahokia te HDPE, ka whakapākehia hei mea hou. Kaore te whakahokia i te HDPE i te mea kino o te whakahokia i ēnei rite atu. Nā reira, ko te HDPE he mea kore whakaaro hei tiaki i te taiao me te iti i ngā pūmau.
Ka hī ai ngā mahiūka i te hā oneone me te hā tahuhu ika hei hanga i te HDPE. Ki te mutu, mā pūtake matua e mōhiotia nei ko te polymerization ka wherawhera te etane ki tētahi momo hā e mōhiotia nei ko te polymer resin. Ka whakatupu ake te resin i ngā pūtētē e mōhiotia nei ko ngā nurdles, ka taea e rātau ki te whatiwhati i ēnei ki runga i ngā mea iti noa atu mai i ngā kaiwhatu wāhi ki ngā wāhanga motokā.
Ko te mahi o te HDPE he iti rawa i te waihotanga o te wera i runga i ērā hoki momo whenua, ko tēnā tētahi o ngā tuhinga pai rawa o tana mahi. E huihui ana tēnei ki te iti iho i te wera e hangoia ana hei whakaputa i te HDPE, me te nui ake te whakaaro taiao. Ko te wāhanga wera o te HDPE he iti i ērā hoki momo whenua, e huihui ana ki te iti iho i tōna whiuwheoro ki runga i tō tātou ao.
Ko te HDPE he whiringa waiora ki te whakatū i ngā hanga me ngā rōpū i tēnei wā, ā, i te tūheke, mahi arohatia ki te taiao. Ki roto i te hanga whare, ka kitea te HDPE i ngā paoro, i ngā rau kawe waewae, ā, hoki hoki i ngā kākano whariki i runga i ngā whare hei tiaki i a rātou, me te whakapakari i te huringa ēneiti. Ki roto i te marautanga hinengaro, ka whakamahia te HDPE ki te hanga i ngā kete mīhini me ngā pūtake whakatakoto tūtihi hei whakangungu i ngā mahi o ngā rata me ngā nāhi e mahi ana i tērā rōpū. Ki roto i te hokohoko motokā, ka whakamahia te HDPE ki te hanga i ngā momo matua, pērā i ngā wāhi ngenge, ngutu motokā, me ngā rau whakaaturanga i roto i te motokā.
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