E ai ki te whakatau tata a te World Health Organization, neke atu i te 785 miriona tāngata kāore i te whai puna wai inu ma. Ahakoa e kapi ana te 71% o te mata o te whenua i te wai moana, kāore e taea e tātou te inu i te wai.
Kei te kaha te mahi a ngā kaipūtaiao o te ao katoa ki te kimi i tētahi huarahi whai hua hei tango i te tote o te wai moana i roto i te utu iti. Ināianei, kua kitea pea e tētahi rōpū kaipūtaiao o Kōrea ki te Tonga tētahi huarahi hei pure i te wai moana i roto i ngā meneti ruarua.
Ko te wai māori e hiahiatia ana mō ngā mahi a te tangata, e 2.5% noa iho o ngā rauemi wai katoa e wātea ana i runga i te whenua. Nā te hurihanga o ngā āhuatanga o te rangi, kua rerekē te ua me te maroke o ngā awa, ā, kua akiakihia ngā whenua ki te kī he korenga wai mō te wā tuatahi i roto i ō rātou hītori. Kāore i te miharo ko te tango tote te huarahi māmā ki te whakaoti i tēnei raruraru. Engari he iti iho ngā herenga o ēnei tukanga.
Ina whakamahia he kiriuhi hei tātari i te wai moana, me pupuri kia maroke te kiriuhi mō te wā roa. Mēnā ka mākū te kiriuhi, ka kore e whai hua te tukanga tātari, ā, ka taea te tuku i te nui o te tote kia puta mā roto i te kiriuhi. Mō te mahi roa, ka kitea pinepine te mākū haere o te kiriuhi, ka taea te whakatau mā te whakakapi i te kiriuhi.
Ina whakamahia he kiriuhi hei tātari i te wai moana, me pupuri kia maroke te kiriuhi mō te wā roa. Mēnā ka mākū te kiriuhi, ka kore e whai hua te tukanga tātari, ā, ka taea te tuku i te nui o te tote kia puta mā roto i te kiriuhi. Mō te mahi roa, ka kitea pinepine te mākū haere o te kiriuhi, ka taea te whakatau mā te whakakapi i te kiriuhi.
He āwhina te āhua waikore o te kiriuhi nā te mea kāore tōna hoahoa e tuku i ngā ngota wai kia haere.
Engari, ka whakamahia he rerekētanga pāmahana ki ngā taha e rua o te kiriata hei mimiti i te wai mai i tētahi pito hei kohu wai. Mā tēnei kiriuhi ka taea te kohu wai te haere, kātahi ka whakapūpū ki te taha matao. E kiia ana ko te whakatōtō kiriuhi, he tikanga tango tote tēnei e whakamahia whānuitia ana i roto i te kiriuhi. Nā te mea kāore ngā matūriki tote e hurihia ki te āhua hau, ka waihotia ki tētahi taha o te kiriuhi, ka whakarato i te wai parakore teitei ki tērā taha.
I whakamahia anō hoki e ngā kairangahau o Kōrea ki te Tonga te silica aerogel i roto i tā rātou tukanga hanga membrane, e whakarei ake ana i te rere o te mamaoa wai mā roto i te membrane, ka tere ake te uru atu ki te wai kua tangohia te tote. I whakamātauhia e te tīma tā rātou hangarau mō ngā rā 30 karapīpiti, ā, i kitea ka taea e te membrane te tātari tonu i te 99.9% o te tote.
Engari, ka whakamahia he rerekētanga pāmahana ki ngā taha e rua o te kiriata hei mimiti i te wai mai i tētahi pito hei kohu wai. Mā tēnei kiriuhi ka taea te kohu wai te haere, kātahi ka whakapūpū ki te taha matao. E kiia ana ko te whakatōtō kiriuhi, he tikanga tango tote tēnei e whakamahia whānuitia ana i roto i te kiriuhi. Nā te mea kāore ngā matūriki tote e hurihia ki te āhua hau, ka waihotia ki tētahi taha o te kiriuhi, ka whakarato i te wai parakore teitei ki tērā taha.
I whakamahia anō hoki e ngā kairangahau o Kōrea ki te Tonga te silica aerogel i roto i tā rātou tukanga hanga membrane, e whakarei ake ana i te rere o te mamaoa wai mā roto i te membrane, ka tere ake te uru atu ki te wai kua tangohia te tote. I whakamātauhia e te tīma tā rātou hangarau mō ngā rā 30 karapīpiti, ā, i kitea ka taea e te membrane te tātari tonu i te 99.9% o te tote.
Wā tuku: Hōngongoi-09-2021
