Hei whakaiti i te parahanga taiao e hua mai ana i te puehu karāpeti me ngā hiko para, me whai huarahi whānui, tae atu ki te whakahaere i te pūtake, te whakahaere tukanga, te maimoatanga pito-paipa, me te whakamahinga rauemi. Ko ngā mahi me ngā kaupapa whakatinanatanga motuhake ēnei:
I. Te Whakahaere i te Parahanga o te Puehu Karāpiti
Ngā Hangarau Whakaiti Puehu Pūtake
- Te Hanganga Kua Tāpirihia: Me tāpiri katoa ngā taputapu tukatuka karāti (hei tauira, ngā mīhini kuru, ngā mira, me ngā tātari) hei whakaiti i te turuturu puehu.
- Whakakapinga Tukanga Mākū: Whakamahia ngā tikanga tukatuka mākū i te wā e kuru ana, e huri ana, mā te whakamahi i te kohu wai hei pehi i te marara o te puehu me te whakaiti i ngā pāmahana whakahaere me te whakaiti i te waikura o te karāhe.
- Kōwhiringa Rauemi Mata iti te Puehu: Whakaritea ngā rauemi mata karāhe kia ōrite te rahi o te matūriki me te iti o te puehu hei whakaiti i te putanga puehu tuarua i te wā e tukatuka ana.
Ngā Pūnaha Kohikohi Puehu kei te Tukatuka
- Ngā Kaikohi Puehu Tino Whai Hua: Tāutahia ngā tātari putea, ngā kaiwhakaoho hiko, ngā wehewehe awhiowhio rānei hei purenga maha-wāhanga o ngā hau puehu, me te whakarite kia tutuki ngā tukunga i ngā paerewa taiao ā-motu (hei tauira, ≤10 mg/m³).
- Hoahoa Putanga Hauātanga Ā-Rohe: Tāutahia ngā taupoki putanga hauātanga ā-rohe ki ngā wāhi whakaputa puehu (hei tauira, ngā putanga whāngai me te putanga tukunga) ka whakauruhia ki ngā pūnaha pēhanga kino hei kohikohi i te puehu i te wā tika.
- Aroturuki Atamai: Whakamahia ngā pūoko kukū puehu mō te aroturuki tukunga wā-tūturu, ka taea ai te whakarerekē aunoa i te rere o te hau i roto i ngā taputapu kohikohi puehu hei whakarei ake i te whai huatanga o te maimoatanga.
Te Whakaora me te Whakamahinga o te Puehu
- Te Hangarua hei Whakamahi Anō: Tātarihia, whakapūmautia hoki te puehu karāpeti i kohia e ngā pūnaha kohikohi puehu hei whakamahi anō i roto i te hanga hikohiko, hei tāpiringa rānei (hei tauira, ngā hinu whakahinuhinu, ngā rauemi kawe hiko).
- Te Whakakorenga Ngātahi: Whakaranua te puehu kāore e taea te hangarua tika me ētahi atu para ahumahi (hei tauira, te paru waro, ngā para) hei hanga rauemi hanga (hei tauira, ngā pereki, ngā rauemi turanga rori).
II. Te Whakahaere i te Parahanga o ngā Irahiko Para
Te Whakaroa i te Ora Ratonga o te Irahiko
- Hoahoa Arotau: Whakapai ake i te hanganga hiko (hei tauira, te porosity, ngā ara kawe hiko) mā te whakatauira tau hei whakarei ake i te ātete ki ngā ru wera me te ātete ki te waikura.
- Maimoatanga Mata: Whakamahia ngā hangarau whakakīkī, paninga rānei (hei tauira, te whakakīkī uku, te paninga silicon carbide) hei whakapai ake i te ātete ki te kakahu me te waikura.
- Aroturuki Atamai: Whakauruhia ngā pūoko pāmahana me te ahotea ki roto i ngā irahiko hei aroturuki i te āhua i te wā tūturu, hei ārai i te taumaha rawa, i ngā whati rānei i puta mai i te wera nui i te rohe.
Te Whakarōpūtanga o te Irahiko Para me te Hangarua
- Te Wetewete Kore Kino: Kuruhia ngā irahiko para mā te mīhini, ka wehea ngā hononga whakarewa (hei tauira, ngā nati parahi) mai i ngā kongakonga karāpeti mā te whakamahi i te wehenga aukume me te hauhautanga.
- Whakamahinga Taumata:
- Karawhite Parakore-Teitei: Whakamāoritia mā te maimoatanga pāmahana teitei (≥2,500°C) hei whakamahi i roto i ngā irahiko kounga teitei, i ngā rauemi haurua-ira rānei.
- Karawhite Ma-Waenga ki te Ma-Iti: Kurua hei whakamahi hei whakapūmau i te hanga maitai, hei whakaranu rānei ki ngā kapia hei whakaputa hua karawhite (hei tauira, ngā hiri, ngā pokepoke).
- Para Toenga: Whakaranua ki te uku hei hanga pereki ātete ahi, hei whakamahi rānei hei whakakī turanga rori.
Ngā Hangarau Whakaora Rauemi
- Te Whakamaemae Matū: Whakarewahia ngā poke (hei tauira, te silicon, te rino) i roto i ngā irahiko para mā te whakamahi i ngā otinga waikawa-pūtake, ā, muri iho ka tātarihia, ka whakamarokehia kia puta ai he paura karāti tino parakore.
- Te Whakakāwhata Mahana-Teitei: Ngā kongakonga hikohiko whakamahana-whakamahia i raro i te parenga hau kore mahi (2,000–3,000°C) hei whakaora i te hanganga tioata kāwhata me te whakapai ake i te kawe hiko.
- Tānga 3-Ahu: Whakakotahitia te paura hiko para ki ngā here, ka whakamahi i te tānga 3-Ahu hei hanga i ngā wāhanga karāhe ritenga, hei whakaiti i te para rauemi.
III. Ngā Mahi Whakahaere Whānui
- Arotakenga Hanganga Ma: Whakahaerehia ngā aromatawai auau hei tautuhi i ngā tukanga parahanga nui, me te whakawhanake i ngā mahere whakapai ake (hei tauira, te whakakapi i ngā taputapu puehu nui, te arotau i ngā rerenga mahi).
- Te Whakatutukitanga o ngā Ture: Kia piri pūmau ki ngāPaerewa Tukunga Whakauru o ngā Parahanga Hau(GB 16297) me teTure Ārai me te Whakahaere Taiao mō te Parahanga Totokakia tika ai te whakakorenga o te puehu me ngā para hiko.
- Tauira Ōhanga Porowhita: Mahi tahi me ngā umanga whakarunga me ngā umanga whakararo ki te whakatū i tētahi whatunga hangarua karāpeti, hei hanga i tētahi mekameka ahumahi (porowhita) "whakaputa-whakamahinga-whakaora-hanga anō".
- Te Whakangungu me te Tiaki Kaimahi: Whakakaha ake i te whakangungu mō te mōhiotanga ki te taiao mō ngā kaiwhakahaere me te whakarato i ngā taputapu tiaki whaiaro (hei tauira, ngā kopare puehu, ngā mōhiti kanohi) hei whakaiti i ngā mōrearea hauora mahi.
IV. Ngā Akoranga Take
- Toray Industries (Hapani): I whakatinanahia ngā pūnaha huri mākū me ngā pūnaha wai porowhita-katia hei whakaiti i ngā tukunga puehu tukatuka karāpeti ki raro iho i te 0.5 mg/m³.
- Fangda Carbon (Haina): I hanga he raina whakakāwhata pāmahana-tiketike mō ngā irahiko para, e hangarua ana i te 12,000 tāne o ngā irahiko kāwhata kua whakahoutia i ia tau, ā, e whakaiti ana i ngā tukunga CO₂ mā te tata ki te 80,000 tāne.
- SGL Carbon (Tiamana): I whakawhanake i te hangarau horoi taiaho hei whakakapi i te whakairo matū, kia tutuki ai te maimoatanga mata hiko kore-parahanga, me te whakaiti i te whakaputanga wai para mā te 90%.
Mā te whakapai ake i ngā hangarau, te arotau i te whakahaere, me te whakatairanga i te whakamahinga rauemi, ka taea te whakaiti i te pānga taiao o te puehu karāpeti me ngā hiko para, me te hanga uara ōhanga me te akiaki i te huringa matomato ahumahi.
Wā tuku: 15 o Ākuhata-2025