Posachedwapa, mtolankhani wochokera ku China Metallurgical News adaphunzira kuchokera ku Vale kuti patatha zaka 7 za kafukufuku ndi ndalama za reais pafupifupi 50 miliyoni (pafupifupi US $ 878,900), kampaniyo yakhala ikupanga njira yopangira miyala yamtengo wapatali yomwe imathandizira chitukuko chokhazikika.Vale wagwiritsa ntchito njira yopangira izi kumalo opangira chitsulo ku Minas Gerais, ku Brazil, ndikutembenuza ma tailings omwe poyambirira amafunikira kugwiritsa ntchito madamu kapena njira zowunjikira kukhala zinthu zapamwamba kwambiri.Zomwe zimapangidwa ndi njira iyi zitha kugwiritsidwa ntchito pantchito yomanga.
Zikumveka kuti mpaka pano, Vale adakonza ndikutulutsa matani pafupifupi 250,000 amichenga yapamwamba kwambiri yotere, yomwe imakhala ndi silicon yambiri, chitsulo chochepa kwambiri, komanso kufanana kwamankhwala ndi kukula kwa tinthu.Vale akufuna kugulitsa kapena kupereka zinthuzo kuti apange konkire, matope, simenti kapena kukonza misewu.
Marcello Spinelli, Wachiwiri kwa Purezidenti wa Vale's Iron Ore Business, adati: "Pali kufunikira kwakukulu kwa mchenga pantchito yomanga.Zogulitsa zathu za ore zimapereka chisankho chodalirika pamakampani omanga, pomwe zimachepetsa kukhudzidwa kwa chilengedwe ndi chithandizo cha tailings.Zotsatira zoyipa zomwe zidayambitsa. ”
Malinga ndi ziwerengero za United Nations, padziko lonse lapansi pakufunika mchenga pakati pa matani 40 biliyoni ndi matani 50 biliyoni.Mchenga wasanduka gwero lachilengedwe lokhala ndi kuchuluka kwakukulu kochotsa kopangidwa ndi anthu pambuyo pa madzi.Mchenga wamchenga uwu wa Vale umachokera ku zopangidwa ndi chitsulo.Ore yaiwisi imatha kukhala chitsulo pambuyo pa njira zingapo monga kuphwanya, kuwunika, kugaya ndi kupindula mufakitale.M'ndondomeko yachikale yopindula, zotsalirazo zimakhala ngati michira, yomwe iyenera kutayidwa kudzera m'madamu kapena m'matumba.Kampaniyo imabwerezanso zomwe zidapangidwa ndi chitsulo pothandizira mpaka zitakwaniritsa zofunikira ndikukhala chinthu chamchenga wapamwamba kwambiri.Vale adati kugwiritsa ntchito njira yosinthira michira kukhala miyala yamtengo wapatali, tani iliyonse yamafuta opangidwa imatha kuchepetsa tani imodzi ya michira.Akuti ofufuza ochokera ku Institute of Sustainable Minerals ku yunivesite ya Queensland ku Australia ndi University of Geneva ku Switzerland pakali pano akuchita kafukufuku wodziyimira pawokha kuti awunike mawonekedwe a mchenga wa Vale kuti amvetsetse ngati atha kukhala njira yokhazikika. ku mchenga.Ndipo kuchepetsa kwambiri kuchuluka kwa zinyalala zopangidwa ndi ntchito zamigodi.
Jefferson Corraide, Executive Manager wa Vale's Brucutu ndi Agualimpa Integrated operations area, anati: “Zopangidwa ndi ore zotere ndi zobiriwiradi.Zinthu zonse za ore zimakonzedwa ndi njira zakuthupi.Kapangidwe kazinthu zopangirazo sikunasinthidwe panthawi yokonza, ndipo mankhwalawo ndi opanda poizoni komanso alibe vuto. ”
Vale adanena kuti akufuna kugulitsa kapena kupereka matani opitilira 1 miliyoni azinthu zotere pofika chaka cha 2022, ndikuwonjezera kutulutsa kwamafuta mpaka matani 2 miliyoni pofika chaka cha 2023. Akuti ogula mankhwalawa akuyembekezeka kubwera kuchokera kumadera anayi. ku Brazil, Minas Gerais, Espirito Santo, Sao Paulo ndi Brasilia.
"Ndife okonzeka kukulitsa msika wogwiritsa ntchito mchenga wa mchere kuyambira 2023, ndipo chifukwa cha izi takhazikitsa gulu lodzipereka kuti ligwire ntchito yatsopanoyi."adatero Rogério Nogueira, mkulu wa msika wachitsulo wa Vale.
“Pakadali pano, madera ena a migodi ku Minas Gerais akukonzekeranso zokonzekera kutsatira njira yopangira imeneyi.Kuphatikiza apo, tikugwirizana ndi mabungwe angapo ofufuza kuti tipeze mayankho atsopano ndikudzipereka pakuchiza chitsulo.Zovala za ore zimapereka malingaliro atsopano. ”adatero André Vilhena, woyang'anira bizinesi ku Vale.Kuphatikiza pa kugwiritsa ntchito zomangamanga zomwe zilipo mdera lamigodi yachitsulo, Vale yakhazikitsanso njira yayikulu yoyendetsera zinthu kuti iyendetse bwino zinthu zamchenga zamchere kupita kumayiko angapo ku Brazil."Cholinga chathu ndikuwonetsetsa kukhazikika kwabizinesi yachitsulo, ndipo tikuyembekeza kuchepetsa momwe kampaniyo ikuyendera kudzera mubizinesi yatsopanoyi."Villiena anawonjezera.
Vale wakhala akupanga kafukufuku wokhudzana ndi ntchito za chithandizo cha tailings kuyambira 2014. Mu 2020, kampaniyo inatsegula malo oyamba oyendetsa ndege omwe amagwiritsa ntchito michira ngati chinthu chachikulu chopangira zinthu zomanga - fakitale ya njerwa ya Pico.Chomeracho chili mdera la migodi ya Pico ku Ibilito, Minas Gerais.Pakadali pano, Federal Technical Education Center ya Minas Gerais ikupanga mgwirizano waukadaulo ndi Pico Brick Factory.Center idatumiza ofufuza opitilira 10, kuphatikiza maprofesa, ophunzira omaliza maphunziro, omaliza maphunziro aukadaulo ndi ophunzira aukadaulo, ku Fakitale ya Brick ya Pico kuti akachite kafukufuku payekha.
Kuphatikiza pa kafukufuku ndi chitukuko cha zinthu zachilengedwe, Vale watenganso njira zosiyanasiyana zochepetsera kuchuluka kwa michira, zomwe zimapangitsa kuti ntchito zamigodi zikhale zokhazikika.Kampaniyo yadzipereka kupanga ukadaulo wowuma womwe sufuna madzi.Pakadali pano, pafupifupi 70% yazinthu zachitsulo za Vale zimapangidwa kudzera muukadaulo wowuma.Kampaniyo inanena kuti kugwiritsa ntchito ukadaulo wowuma kumagwirizana kwambiri ndi mtundu wachitsulo.Chitsulo chachitsulo m'dera la migodi ya Carajás chili ndi chitsulo chochuluka (kupitirira 65%), ndipo kukonza kumangofunika kuphwanyidwa ndi kusefa malinga ndi kukula kwa tinthu.
Wothandizira wa Vale apanga ukadaulo wowuma wolekanitsa maginito wa ore wabwino, womwe wagwiritsidwa ntchito pafakitale yoyendetsa ku Minas Gerais.Vale amagwiritsa ntchito ukadaulo uwu pakupindula kwa chitsulo chotsika kwambiri.Chomera choyamba chamalonda chidzagwiritsidwa ntchito m'dera la Davarren mu 2023. Vale adanena kuti chomeracho chidzakhala ndi mphamvu yopangira matani 1.5 miliyoni pachaka, ndipo ndalama zonse zikuyembekezeka kukhala US $ 150 miliyoni.Komanso, Vale watsegula tailings filtration chomera mu Great Varjin migodi dera, ndipo akukonzekera kutsegula atatu tailings filtration zomera mu kotala loyamba la 2022, amene imodzi ili m'dera Brucutu migodi ndi awiri ali Iraq.Tagbila mining area.