Muva nje, intatheli evela e-China Metallurgical News ifunde ku-Vale ukuthi ngemva kweminyaka engu-7 yocwaningo kanye nokutshalwa kwezimali kwama-reais ayizigidi ezingu-50 (cishe ama-US $878,900), inkampani ithuthukise ngempumelelo inqubo yokukhiqiza i-ore yezinga eliphezulu ehambisana nentuthuko esimeme.U-Vale usebenzise le nqubo yokukhiqiza endaweni yokusebenza yensimbi yensimbi e-Minas Gerais, e-Brazil, futhi uguqula ukucutshungulwa kwezinsalela okwakudinga ekuqaleni ukusetshenziswa kwamadamu noma izindlela zokunqwabelanisa kube imikhiqizo yensimbi yekhwalithi ephezulu.Imikhiqizo yensimbi ekhiqizwa yile nqubo ingasetshenziswa embonini yezokwakha.
Kuyaqondakala ukuthi kuze kube manje, i-Vale isicubungule futhi yakhiqiza amathani angaba ngu-250,000 emikhiqizo yesihlabathi samaminerali esezingeni eliphezulu, enokuqukethwe kwe-silicon ephezulu, okunensimbi ephansi kakhulu, nokufana kwamakhemikhali aphezulu kanye nokufana kosayizi wezinhlayiyana.UVale uhlela ukudayisa noma ukunikela ngomkhiqizo ukuze kukhiqizwe ukhonkolo, udaka, usimende noma ukukhanda imigwaqo.
UMarcello Spinelli, iPhini Likamongameli Omkhulu weVale's Iron Ore Business, uthe: “Kunesidingo esikhulu sesihlabathi embonini yezokwakha.Imikhiqizo yethu yensimbi inikeza ukukhetha okuthembekile embonini yezokwakha, kuyilapho inciphisa umthelela wemvelo wokwelashwa kwemisila.Umthelela omubi obangelwe.”
Ngokwezibalo zeNhlangano Yezizwe, isidingo sonyaka emhlabeni wonke sesihlabathi siphakathi kwamathani ayizigidi eziyizinkulungwane ezingu-40 namathani ayizigidi eziyizinkulungwane ezingu-50.Isihlabathi sesiphenduke insiza yemvelo enenani elikhulu kakhulu lokudonswa komuntu ngemva kwamanzi.Lo mkhiqizo wesihlabathi samaminerali we-Vale ususelwa kumkhiqizo wensimbi yensimbi.Insimbi eluhlaza ingaba yinsimbi ngemva kwezinqubo ezimbalwa ezinjengokuchotshozwa, ukuhlunga, ukugaya kanye nokuzuza efekthri.Enqubweni evamile yokuhlomula, imikhiqizo engeyona eyejwayelekile izoba yizinsalela, okumele zilahlwe ngamadamu noma izitaki.Inkampani icubungula kabusha imikhiqizo yensimbi esesigabeni sokuhlomula ize ihlangabezane nezidingo zekhwalithi futhi ibe umkhiqizo wesihlabathi samaminerali wekhwalithi ephezulu.U-Vale uthe ngokusebenzisa inqubo yokuguqula i-tailings ibe i-ore yezinga eliphezulu, yonke ithoni lemikhiqizo ye-ore ekhiqizwayo inganciphisa i-1 ton of tailings.Kubikwa ukuthi abacwaningi abavela e-Institute of Sustainable Minerals eNyuvesi yaseQueensland e-Australia kanye neYunivesithi yaseGeneva eSwitzerland okwamanje benza ucwaningo oluzimele ukuze bahlaziye izici zemikhiqizo yesihlabathi samaminerali ka-Vale ukuze baqonde ukuthi ingaba yini enye indlela esimeme. esihlabathini.Futhi ukunciphisa kakhulu inani lemfucuza ekhiqizwa imisebenzi yezimayini.
UJefferson Corraide, uMphathi Omkhulu we-Vale's Brucutu kanye ne-Agualimpa edidiyelwe endaweni yokusebenza, uthe: “Lolu hlobo lwemikhiqizo yensimbi luyimikhiqizo eluhlaza ngempela.Yonke imikhiqizo ye-ore icutshungulwa ngezindlela ezibonakalayo.Ukwakheka kwamakhemikhali ezinto zokusetshenziswa akushintshiwe ngesikhathi kucutshungulwa, futhi umkhiqizo awunabo ubuthi futhi awunabungozi.”
U-Vale uthe uhlela ukuthengisa noma ukunikela ngamathani angaphezu kwesigidi esisodwa emikhiqizo enjalo ye-ore ngo-2022, futhi akhulise ukukhiqizwa kwemikhiqizo yensimbi ibe amathani ayizigidi ezingu-2 ngo-2023. Kubikwa ukuthi abathengi balo mkhiqizo kulindeleke ukuthi bavele ezifundeni ezine. eBrazil, eMinas Gerais, e-Espirito Santo, eSao Paulo naseBrasilia.
"Sikulungele ukukhulisa imakethe yezicelo zemikhiqizo yesihlabathi samaminerali kusukela ngo-2023, futhi ngenxa yalokhu sisungule ithimba elizinikele elizoqhuba leli bhizinisi elisha."kusho uRogério Nogueira, umqondisi wemakethe yensimbi kaVale.
“Okwamanje, ezinye izindawo zezimayini eMinas Gerais nazo zilungiselela uchungechunge lwamalungiselelo okwamukela lolu hlelo lokukhiqiza.Ngaphezu kwalokho, sibambisana nenani lezikhungo zocwaningo ukuthuthukisa izixazululo ezintsha futhi sizibophezele ekwelashweni okunengqondo kwensimbi.Izinsimbi zensimbi zinikeza imibono emisha. "kusho u-André Vilhena, umphathi webhizinisi laseVale.Ngaphezu kokusebenzisa ingqalasizinda ekhona endaweni yezimayini zensimbi, i-Vale isungule ngokukhethekile inethiwekhi enkulu yezokuthutha ukuze ithuthe imikhiqizo yesihlabathi samaminerali esimeme iye ezifundazweni eziningi e-Brazil.“Esigxile kukho wukuqinisekisa ukusimama kwebhizinisi lensimbi, futhi sithemba ukuthi sizonciphisa umkhondo wemvelo yokusebenza kwenkampani ngaleli bhizinisi elisha.”U-Villiena wengeza.
U-Vale ubelokhu enza ucwaningo ngezicelo zokwelashwa kwe-tailings kusukela ngo-2014. Ngo-2020, inkampani yavula imboni yokuqala yokuhlola esebenzisa itailings njengento eluhlaza ukukhiqiza imikhiqizo yokwakha-imboni yezitini ye-Pico.Lesi sikhungo sisendaweni yezimayini zasePico e-Itabilito, eMinas Gerais.Njengamanje, i-Federal Technical Education Center yaseMinas Gerais ithuthukisa ukubambisana kwezobuchwepheshe ne-Pico Brick Factory.Lesi sikhungo sithumele abacwaningi abangaphezu kwe-10, okuhlanganisa noprofesa, abafundi abaneziqu, abafundela iziqu kanye nabafundi bezifundo zobuchwepheshe, e-Pico Brick Factory ukuze benze ucwaningo mathupha.
Ngaphezu kokucwaninga nokuthuthukiswa kwemikhiqizo yemvelo, u-Vale uphinde wathatha izinyathelo ezihlukahlukene zokunciphisa inani lemisila, okwenza imisebenzi yezimayini isimeme.Le nkampani izibophezele ekuthuthukiseni ubuchwepheshe bokulungisa okomile okungadingi amanzi.Njengamanje, cishe u-70% wemikhiqizo yensimbi ye-Vale ikhiqizwa ngobuchwepheshe bokucubungula okomile.Le nkampani ithe ukusetshenziswa kobuchwepheshe bokucubungula okomile kuhlobene kakhulu nekhwalithi yensimbi.I-iron ore endaweni yezimayini yaseCarajás inokuqukethwe okuphezulu kwensimbi (ngaphezu kuka-65%), futhi ukucubungula kudinga kuphela ukuchotshozwa nokusefa ngokuhambisana nosayizi wezinhlayiyana.
Inkampani engaphansi kwe-Vale ithuthukise ubuchwepheshe obomile bokuhlukanisa kazibuthe bensimbi ecolekile, esetshenziswe endaweni yokuhlola eMinas Gerais.I-Vale isebenzisa lobu buchwepheshe enqubweni yokuzuza kwensimbi yensimbi yezinga eliphansi.Imboni yokuqala yokuhweba izosetshenziswa endaweni yokusebenza yase-Davarren ngo-2023. U-Vale uthe lesi sikhungo sizokhiqiza amathani ayizigidi eziyi-1.5 ngonyaka, kanti imali isiyonke kulindeleke ukuthi ibe yi-US$150 million.Ngaphezu kwalokho, i-Vale ivule indawo eyodwa yokuhlunga i-tailings endaweni yezimayini e-Great Varjin, futhi ihlela ukuvula izimboni ezintathu zokuhlunga umsila engxenyeni yokuqala ka-2022, enye yazo etholakala endaweni yezimayini yaseBrucutu kanti ezimbili zitholakala e-Iraq.Indawo yezimayini yaseTagbila.