ʻO kahi kaʻina hana e hoʻokumu ai i nā ʻōpala i loko o nā teapots hiki ke kōkua i ka hoʻomaʻemaʻe ʻana i ka nickel-borne contamination mai ka wai kai, e like me kahi noiʻi hou mai ka mokupuni ʻo South Pacific o New Caledonia.
       NikelaʻO ka mining ka ʻoihana nui ma New Caledonia;ʻO ka mokupuni liʻiliʻi kekahi o nā mea hana metala nui loa ma ka honua.Akā ʻo ka hui pū ʻana o nā lua hāmama nui a me ka ua nui ua hopena i ka nui o ka nickel, ke kēpau a me nā metala ʻē aʻe i pau i nā wai a puni nā mokupuni.Hiki ke hoʻopōʻino i ke olakino o ke kanaka no ka hoʻohaumia ʻana o ka nikela i ka piʻi ʻana o ka iʻa a me ka iʻa i kou neʻe ʻana i ke kaulahao meaʻai.
Ua noʻonoʻo ʻo Marc Jeannin, he ʻenekinia kaiapuni ma ke Kulanui o La Rochelle ma Farani, a me kāna mau hoa hana ma ke Kulanui o New Caledonia ma Nouméa inā hiki iā lākou ke hoʻohana i ke kaʻina hana pale cathodic, kahi ʻenehana i hoʻohana ʻia e hakakā i ka ʻino o nā hale metala moana, e loaʻa ai kekahi nickel mai ka wai.
Ke hoʻohana ʻia ke au uila nāwaliwali i nā metala i loko o ka wai kai, e kahe ana ka calcium carbonate a me ka magnesium hydroxide mai ka wai a hana i ka lime ma ka ʻili o ka metala.ʻAʻole i aʻo ʻia kēia kaʻina hana i mua o nā mea haumia metala e like me ka nickel, a noʻonoʻo ka poʻe noiʻi inā e paʻa pū kekahi mau iona nickel i ka wai.
Ua kiola ka hui i ke uwea hao hao i loko o ka bākeke wai kai hana ʻia i hoʻohui ʻia ka paʻakai NiCl2 i loko o ia mea a holo i ke au uila ma o ʻehiku lā.Ma hope o kēia manawa pōkole, ua ʻike lākou he 24 pakeneka o ka nickel i loaʻa mua i paʻa i loko o nā waihona unahi.
'Ōleloʻo Jannen he ala maʻalahi a maʻalahi e wehenikelahaumia."ʻAʻole hiki iā mākou ke hoʻopau loa i ka pollution, akā ʻo ia kekahi ala e kaupalena ai," wahi āna.
ʻAʻole i manaʻo ʻia nā hopena, ʻoiai ʻaʻole ʻo ka hoʻopau ʻana i ka pollution kekahi o nā pahuhopu o ka papahana noiʻi kumu.ʻO ka noiʻi nui a Janine e kālele ana i ka hoʻomohala ʻana i nā ala e pale aku ai i ka ʻinoʻino kahakai: ua aʻo ʻo ia i ka hana ʻana o nā waihona lime i kanu ʻia i loko o kahi uwea ma ka papahele o ka moana ma ke ʻano he ʻano sima maoli, e kōkua ana i ka hoʻopaʻa ʻana i nā waihona ma lalo o nā dykes a i nā kahakai one.
Ua hoʻomaka ʻo Jannin i kahi papahana ma New Caledonia e hoʻoholo ai inā hiki i ka ʻupena ke hopu i nā mea ʻino metala e kōkua ai i ke aʻo ʻana i ka mōʻaukala o ka nickel contamination o ka pūnaewele."Akā i ka wā i ʻike ai mākou hiki iā mākou ke hopu i ka nui o ka nickel, ua hoʻomaka mākou e noʻonoʻo e pili ana i nā noi ʻoihana hiki," i hoʻomanaʻo ai ʻo ia.
ʻAʻole hoʻoneʻe wale ke ala i ka nickel, akā he pūʻulu o nā metala ʻē aʻe kekahi, wahi a ka mea kemika kūlohelohe ʻo Christine Orians o ke Kulanui o British Columbia ma Vancouver."ʻAʻole koho nui ka co-precipitation," i ʻōlelo ʻo ia iā Chemistry World."ʻAʻole maopopo iaʻu inā he kūpono ia i ka wehe ʻana i nā metala ʻona me ka ʻole o ka wehe ʻana i nā metala e pono ai e like me ka hao."
Akā naʻe, ʻaʻole hopohopo ʻo Jeanning ʻo ka ʻōnaehana, inā e kau ʻia ma kahi ʻano nui, e hoʻoneʻe i nā mineral koʻikoʻi mai ke kai.Ma nā hoʻokolohua i wehe wale i ka 3 pakeneka o ka calcium a me ka 0.4 ka nui o ka magnesium mai ka wai, ua lawa ka nui o ka hao i loko o ke kai a ʻaʻole nui ka hopena, wahi āna.
Ma ke ʻano kikoʻī, ua manaʻo ʻo Jeannin e hiki ke hoʻopili ʻia kēlā ʻōnaehana ma nā wahi nickel nui e like me ke awa o Noumea e kōkua i ka hōʻemi ʻana i ka nui onikelae pau ana i ka moana.ʻAʻole koi nui ka mana a hiki ke hoʻopili ʻia i nā kumu ikehu hou e like me nā panela lā.Hiki ke hoʻihoʻi hou ʻia a hana hou ʻia ka Nickel a me nā mea haumia ʻē aʻe.
Ua ʻōlelo ʻo Jeanning e hana ana ʻo ia a me kāna mau hoa hana me nā hui ma Farani a me New Caledonia e hoʻomohala i kahi papahana pailaka e kōkua i ka hoʻoholo ʻana inā hiki ke kau ʻia ka ʻōnaehana ma kahi ʻano ʻoihana.
© Royal Society of Chemistry document.write(new Date().getFullYear());Ka helu inoa aloha: 207890