Kubikwa ukuba iNorwegian Hydro Company itshintshele kwiteknoloji yokuzalisa i-bauxite tailings ukuze ithathe indawo yedama le-tailings langaphambili, ngaloo ndlela iphucula ukhuseleko kunye nokukhuselwa kwendalo kwemigodi.
Ngexesha lovavanyo lwesi sisombululo sitsha, iHydro ityale imali emalunga ne-US$5.5 yezigidi ekukhutshweni kokugqibela kweentsalela kwindawo yemigodi kwaye yafumana imvume yokusebenza ekhutshwe yiSekela-Nobhala weNdalo kunye nokuZinza kweSizwe (i-SEMAS).
UJohn Thuestad, uSekela Mongameli oPhetheyo kwishishini le-bauxite kunye ne-alumina leHydro, uthe: “I-Hydro ibisoloko izimisele ukukhuthaza uphuhliso oluzinzileyo lweshishini le-aluminium, ngoko ke senze imizamo yokuphumeza olu mzamo wokuphepha ukwembiwa kwe-bauxite. Ukusekwa kwamachibi amatsha ahlala ixesha elide ngexesha lokumbiwa kwemigodi kubangela iingozi kwindalo esingqongileyo.”
Isisombululo seHydro yinzame yamva nje yokulahla iintsalela ze-bauxite kushishino. Ukusukela ngoJulayi 2019, iHydro ibivavanya obu buchwephesha kumgodi we-bauxite waseMinerao Paragominas kumantla ePara. Kuyaqondakala ukuba le nkqubo ayifuni ukwakhiwa okuqhubekayo kwamadama amatsha asisigxina eentsalela, okanye ukongeza iileya kwisakhiwo sedama leentsalela ezikhoyo, kuba le nkqubo isebenzisa indlela ebizwa ngokuba yi-“dry tailings backfilling”. Oko kukuthi, iintsalela ze-backfill dry inert kwindawo yemigodi.
Isigaba sovavanyo lwesi sisombululo sitsha seHydro senziwa phantsi kokubekwa esweni nasekulandelelweni kwexesha elide kweearhente zokusingqongileyo, kwaye silandela imigangatho yobugcisa yeKomiti yokusingqongileyo (iConama). Ukusetyenziswa kwesi sisombululo sitsha eBrazil linyathelo elibalulekileyo eliya kuphuhliso oluzinzileyo, ukuphucula ukhuseleko lokusebenza kunye nokunciphisa umkhondo weHydro kokusingqongileyo. Uvavanyo lweprojekthi lugqityiwe ekupheleni kuka-2020, kwaye i-Para State Secretariat for Environment and Sustainable Development (SEMAS) yavunywa ukuba isebenze ngoDisemba 30, 2020.