Wao Puku Cyanidation: He Tikanga mo te Whakaora Koura mai i te Hiko Paraka

Wao Puku Cyanidation: He Tikanga mo te Whakaora Koura mai i te Copper Tailing Sodium cyanide copper tailings carbon-in-pulp cyanidation No. 1picture

Kupu Whakataki

I roto i te umanga keri, he mea nui te whakaora whai hua o ngā konganuku utu nui mai i ngā para mō te whakamahinga rauemi me te tiaki taiao. E arotahi ana tēnei rangahau take ki tētahi maina parahi i Āhia Waenganui, i reira i whakamahia ai te tukanga cyanidation Waro -i-te-para (CIP) ki ngā para whakapūmau parahi hei whakaora koura.

Nga Tikanga Maranga

I tukatukahia tuatahitia ngā paru parahi i whakamānuhia. Mā te tukanga whakamānuhia, i whiwhihia he matū whakapūmau whakamānuhia he 48.50 karamu/t te nui o te koura me te 8.45% te nui o te parahi. I muri i te whakamānuhia, he 0.21% te nui o te parahi i roto i ngā paru, ā, i roto i ēnei ko te 0.12% te nui o te parahi ka taea te mimiti me te cyanide.

Tukanga CIP Cyanidation

Kātahi ka tukuna ngā paru whakapūngā ki te cyanidation waro-i-roto-i-te-purp. I roto i tēnei tukanga, ko te nui o te cyanide konutai i pau ko te 3.1 kg/t. Ko te tere tango koura i eke ki te 74.71%. Ko te tere whakaora katoa o te koura mā te whakakotahitanga o te whakapūngā me te tango he 88.26%, ā, ko te tere whakaora parahi he 62.16%.

Nga Hua me nga Painga

Nā te whakamahinga o te tukanga cyanidation CIP ki ngā para parahi i tēnei take, kua tino kitea ngā hua. Tuatahi, kua tino kitea te koura mai i ngā para, ā, kua piki ake te hanga koura katoa o te maina. Tuarua, kua pai ake hoki te whakamahinga o ngā rauemi parahi e te tukanga, me te whakaiti i te para o ngā konganuku utu nui. Hei tāpiri, ki te whakatauritea ki ētahi tikanga tukatuka para tuku iho, he iti noa te whakamahinga pūngao o tēnei tukanga, ā, he māmā noa te whakahaere, he pai hoki mō te whakahaere utu me te tiaki taiao.

Opaniraa

Ko tenei rangahau take e whakaatu ana ko te waro-in-pup cyanidation he tikanga whaihua me te whai hua mo te whakaora koura mai i nga hiku parahi. Ma te arotau i te rere o te tukanga me nga tawhā, ka taea te whakapai ake i te tere whakaora o nga konganuku utu nui, me te tuku tohutoro mo nga maina rite ki te whakaora rawa me te whanaketanga taumau.s

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