Pūrākau Waitohu | UrbanMines: Mai i ngā Maina Tāone ki ngā Rauemi o te Ao
Ko te ariā o UrbanMines e ahu mai ana i te anga "keri tāone" i whakaurua i te tau 1988 e Ahorangi Michio Nanjo o te Institute of Mineral Processing and Metallurgy i Te Whare Wānanga o Tohoku, Hapani. I whakaaro a Ahorangi Nanjo ko te kohikohinga o ngā hua ahumahi kua makahia ki ngā tāone he puna nui o ngā rauemi hangarua, i tapaina e ia ko te "keri tāone." Ko tēnei ariā he whakatinanatanga o tētahi huarahi pumau ki te whakahaere rauemi, e aro ana ki te whakaora i ngā rauemi whakarewa nui mai i ngā para hiko me te tautoko i te pumau taiao me te ōhanga mō te wā roa.
Ko tētahi tauira pai ko te papa hiko tā (PCB) e kitea ana i roto i ngā taputapu hiko—e kiia ana ko ngā "minenga tāone"—kei roto ko te whānuitanga o ngā konganuku onge me ngā huānga whenua onge. He tauira māngai tēnei mō te ariā "minenga tāone".
Mai i te tīmatanga o te rautau 21, kua akiakihia e te kaupapa here whakahou me te whakatuwheratanga o Haina te tere o te whanaketanga ohaoha, te whānui o te whakamahinga o ngā hikohiko kaihoko (hua 3C), me te putanga mai o ngā ahumahi pēnei i ngā papa hiko tā (PCB), ngā anga mata IC, me ngā hononga hiko tino tika. Nā tēnei tipu anō hoki i piki ake ai te nui o ngā para hiko me ngā para koranu parahi. Hei whakautu i tēnei āhua e whanake ana, i whakatūria a UrbanMines ki Hong Kong i te tau 2007, i te tuatahi i arotahi ki te hangarua o ngā PCB me ngā para koranu parahi kua tāia, ā, nā reira i whakatakoto ai i te turanga mō āna mahi hangarua rauemi.
Mā te whanaketanga tonu o te hangarau, te whakaurunga mekameka tuku, me te whānui o te mākete, kua huri a UrbanMines mai i te hinonga hangarua rauemi ki tētahi kamupene hangarau e whakauru ana i te rangahau me te whanaketanga rauemi matatau, te whakaputa, me te hangarua porowhita kati. Ko te ingoa me te waitohu "UrbanMines" ehara i te mea e whakaata ana i te takenga mai o te kamupene i roto i te whakaora rauemi o te tāone engari e tohu ana hoki i tana whakapau kaha tonu ki te hono i te auahatanga rauemi matatau me te whakamahinga rauemi pumau.
E tautoko ana mātou i te mātāpono "He Mutunga Kore te Whakapau, engari he Mutunga Kore ngā Rauemi; Mā te Whakamahi i te Tangohanga hei Tatau i ngā Rauemi, Mā te Whakawehewehe hei Tatau i te Whakapau." I runga i ngā wero o te ao pēnei i te korenga o ngā rauemi me te whakawhiti pūngao, kua whakawhanakehia e UrbanMines tētahi tirohanga rautaki—"Te Tirohanga Anamata"—e hāngai ana ki te ahunga whakamua hangarau me te oranga tonutanga. Ko te arotahi o tēnei rautaki ko ngā rauemi konganuku onge parakore teitei, ngā matū whenua onge mahi teitei, me ngā pūnaha hangarua matomato, kati-porowhita. Mā te whakamahi i ngā hangarau konganuku matū auaha, e whakapau kaha ana mātou ki te whakarato i ngā otinga rauemi o te whakatupuranga e whai ake nei mō ngā ahumahi hangarau teitei.
I te tirohanga whakamua, ko te whāinga a UrbanMines kia noho hei kaiārahi o te ao i roto i ngā rauemi mahi teitei me te hangarua rauemi porowhita-katia, me te huri i tōna tohungatanga ki te oranga tonutanga hei painga whakataetae pumau i ngā mākete o te ao.