I kēia mau lā aku nei, ua ʻike kekahi mea kākau moʻolelo mai China Metallurgical News mai Vale ma hope o 7 mau makahiki o ka noiʻi a me ka hoʻopukapuka kālā ʻana ma kahi o 50 miliona reais (ma kahi o US$878,900), ua hoʻomohala pono ka hui i kahi kaʻina hana hana hao kiʻekiʻe e kūpono ana i ka hoʻomohala mau. Ua hoʻopili ʻo Vale i kēia kaʻina hana i ka wahi hana hao hao o ka hui ma Minas Gerais, Brazil, a hoʻololi i ka hana ʻana i nā tailings i koi mua ʻia ai ka hoʻohana ʻana i nā dams a i ʻole nā ​​​​ʻano stacking i nā huahana ore kiʻekiʻe. Hiki ke hoʻohana ʻia nā huahana ore i hana ʻia e kēia kaʻina hana i ka ʻoihana kūkulu hale.
Ua hoʻomaopopo ʻia a hiki i kēia manawa, ua hana a hana ʻo Vale ma kahi o 250,000 tone o ia mau huahana one mineral kiʻekiʻe, nona ka nui o ka silicon, ka haʻahaʻa loa o ka hao, a me ke ʻano like o nā kemika a me ka nui o nā ʻāpana. Hoʻolālā ʻo Vale e kūʻai aku a hāʻawi paha i ka huahana e hana i ka sima, ka mortar, ka sima a i ʻole e hoʻomoe i nā alanui.
Ua ʻōlelo ʻo Marcello Spinelli, Hope Pelekikena Hoʻokō o ka ʻOihana Iron Ore a Vale: "Nui ka makemake no ke one i ka ʻoihana kūkulu hale. Hāʻawi kā mākou huahana ore i kahi koho hilinaʻi no ka ʻoihana kūkulu hale, me ka hoʻemi ʻana i ka hopena o ke kaiapuni o ka mālama ʻana i nā tailings. ʻO ka hopena maikaʻi ʻole i hana ʻia."
Wahi a nā helu helu o nā Aupuni Hui Pū ʻIa, ʻo ke koi makahiki o ka honua no ke one ma waena o 40 biliona tone a me 50 biliona tone. Ua lilo ke one i waiwai kūlohelohe me ka nui loa o ka unuhi ʻana i hana ʻia e ke kanaka ma hope o ka wai. Loaʻa kēia huahana one mineral o Vale mai kahi huahana ʻaoʻao o ka hao hao. Hiki i ka hao maka ke lilo i hao hao ma hope o kekahi mau kaʻina hana e like me ka kuʻi ʻana, ka kānana ʻana, ka wili ʻana a me ka hoʻomaikaʻi ʻana i loko o ka hale hana. I ke kaʻina hana hoʻomaikaʻi kuʻuna, e lilo nā huahana ʻaoʻao i nā tailings, pono e hoʻolei ʻia ma o nā pā a i ʻole i loko o nā puʻu. Hoʻoponopono hou ka hui i nā huahana ʻaoʻao o ka hao hao i ke kahua hoʻomaikaʻi a hiki i ka wā e hoʻokō ai i nā koi maikaʻi a lilo i huahana one mineral kiʻekiʻe. Ua ʻōlelo ʻo Vale me ka hoʻohana ʻana i ke kaʻina hana o ka hoʻololi ʻana i nā tailings i ore kiʻekiʻe, hiki i kēlā me kēia tona o nā huahana ore i hana ʻia ke hōʻemi i 1 tone o nā tailings. Ua hōʻike ʻia e hana nei nā kānaka noiʻi mai ka Institute of Sustainable Minerals ma ke Kulanui o Queensland ma Australia a me ke Kulanui o Geneva ma Switzerland i kahi noiʻi kūʻokoʻa e kālailai i nā ʻano o nā huahana one mineral a Vale e hoʻomaopopo ai inā hiki iā lākou ke lilo i mea hoʻomau i ke one. A e hōʻemi nui i ka nui o nā ʻōpala i hana ʻia e nā hana mining.
Ua ʻōlelo ʻo Jefferson Corraide, Luna Hoʻokele o ka ʻāpana hana i hoʻohui ʻia ʻo Brucutu lāua ʻo Agualimpa ma Vale: "He huahana ʻōmaʻomaʻo maoli kēia ʻano huahana ore. Hana ʻia nā huahana ore a pau e nā ʻano kino. ʻAʻole i loli ke ʻano kemika o nā mea maka i ka wā o ka hana ʻana, a ʻaʻohe mea ʻawahia a ʻino ʻole ka huahana."
Ua ʻōlelo ʻo Vale e hoʻolālā ana ia e kūʻai aku a hāʻawi paha i ʻoi aku ma mua o 1 miliona tone o ia mau huahana ore ma ka makahiki 2022, a hoʻonui i ka hana o nā huahana ore i 2 miliona tone ma ka makahiki 2023. Ua hōʻike ʻia e manaʻo ʻia nā mea kūʻai o kēia huahana e hele mai mai nā ʻāpana ʻehā ma Brazil, ʻo Minas Gerais, Espirito Santo, Sao Paulo a me Brasilia.
"Ua mākaukau mākou e hoʻonui hou aku i ka mākeke noi o nā huahana one mineral mai ka makahiki 2023, a no kēia ua hoʻokumu mākou i kahi hui i hoʻolaʻa ʻia e hoʻokele i kēia ʻoihana hou." wahi a Rogério Nogueira, ka luna hoʻokele o ka mākeke hao hao o Vale.
"I kēia manawa, ke hoʻomākaukau nei nā wahi hana ʻeli ʻē aʻe ma Minas Gerais i kahi moʻo o nā hoʻomākaukau no ka hoʻohana ʻana i kēia kaʻina hana. Eia kekahi, ke hana pū nei mākou me kekahi mau ʻoihana noiʻi e hoʻomohala i nā hopena hou a ua kūpaʻa mākou i ka mālama kūpono ʻana i ka hao. Hāʻawi nā ʻōpala hao i nā manaʻo hou." wahi a André Vilhena, luna ʻoihana o Vale. Ma waho aʻe o ka hoʻohana ʻana i nā ʻōnaehana i loaʻa i ka wahi hana ʻeli hao, ua hoʻokumu kūikawā ʻo Vale i kahi pūnaewele halihali nui e lawe pono a maʻalahi i nā huahana one mineral hoʻomau i nā mokuʻāina he nui ma Brazil. "ʻO kā mākou mea nui ka hōʻoia ʻana i ka hoʻomau ʻana o ka ʻoihana hao hao, a ke manaʻolana nei mākou e hōʻemi i ka kapuaʻi kaiapuni o nā hana a ka hui ma o kēia ʻoihana hou." wahi a Villiena.
Ua hana ʻo Vale i ka noiʻi ʻana i nā noi mālama ʻana i nā tailings mai ka makahiki 2014. I ka makahiki 2020, ua wehe ka ʻoihana i ka hale hana hoʻāʻo mua e hoʻohana ana i nā tailings ma ke ʻano he mea maka nui e hana ai i nā huahana kūkulu - ʻo ia ka hale hana piliki Pico. Aia ka hale hana ma kahi eli ʻia ai ʻo Pico ma Itabilito, Minas Gerais. I kēia manawa, ke hoʻomohala nei ke Kikowaena Hoʻonaʻauao ʻenehana Pekelala o Minas Gerais i ka laulima ʻenehana me ka Pico Brick Factory. Ua hoʻouna aku ke kikowaena ma mua o 10 mau mea noiʻi, me nā polopeka, nā haumāna puka, nā haumāna lae pua a me nā haumāna papa hana loea, i ka Pico Brick Factory e hana i ka noiʻi ma ke kino.
Ma waho aʻe o ka noiʻi a me ka hoʻomohala ʻana i nā huahana kaiaola, ua lawe pū ʻo Vale i nā ʻano hana like ʻole e hōʻemi i ka nui o nā tailings, e hoʻolilo ana i nā hana mining i mea hoʻomau. Ua kūpaʻa ka ʻoihana i ka hoʻomohala ʻana i ka ʻenehana hana maloʻo ʻaʻole pono ka wai. I kēia manawa, ma kahi o 70% o nā huahana hao hao a Vale i hana ʻia ma o ka ʻenehana hana maloʻo. Ua ʻōlelo ka ʻoihana ua pili loa ka hoʻohana ʻana i ka ʻenehana hana maloʻo i ka maikaʻi o ka hao hao. Loaʻa i ka hao hao ma kahi eli ʻia ai ʻo Carajás kahi nui o ka hao (ma luna o 65%), a pono wale nō e kuʻi ʻia a kānana ʻia ka hana ʻana e like me ka nui o nā ʻāpana.
Ua hoʻomohala ka lālā o Vale i kahi ʻenehana hoʻokaʻawale magnetic maloʻo no ka ore maikaʻi, kahi i hoʻopili ʻia ma kahi hale hana hoʻāʻo ma Minas Gerais. Hoʻopili ʻo Vale i kēia ʻenehana i ke kaʻina hana hoʻomaikaʻi o ka ore hao haʻahaʻa. E hoʻohana ʻia ka hale hana kalepa mua ma kahi hana ʻo Davarren i ka makahiki 2023. Ua ʻōlelo ʻo Vale e loaʻa i ka hale hana kahi mana hana makahiki o 1.5 miliona tons, a manaʻo ʻia ka huina kālā he US$150 miliona. Eia kekahi, ua wehe ʻo Vale i hoʻokahi hale hana kānana tailings ma kahi eli ʻo Great Varjin, a ke hoʻolālā nei e wehe i ʻekolu mau hale hana kānana tailings hou aʻe i ka hapaha mua o 2022, aia kekahi ma kahi eli ʻo Brucutu a aia ʻelua ma Iraq. Wahi eli ʻo Tagbila.