Ukwelashwa kwe-Cyanide ku-Gold Leaching Tailings

Ukusabalala kweCyanidation kanye Nengozi yeCyanide

I-cyanidation isetshenziswa kabanzi iningi lezimayini zegolide emhlabeni jikelele futhi cishe izosala idlangile eminyakeni ezayo. Nokho, I-Cyanide iyisingcolisi esiyingozi esiyingozi. Ukuba khona kwayo emanzini angcolile nasezinsikeni kungaba nomthelela omubi kubantu kanye nemvelo. Ngakho-ke, kubalulekile ukulawula lezi zinto ezingcolisayo.

Inqubo yeCyanide Leaching kanye nemikhiqizo yayo

I-Cyanide leaching iguqula igolide libe ngamanzi - ancibilikayo i-cyanide i-complexes futhi okwamanje iyinqubo evamile futhi ephumelelayo yokukhipha igolide ku-ores. Le nqubo idinga ukweqisa kwe-cyanide ukuze kuthuthukiswe ukutholakala kwegolide, ikhiqize i-cyanide - equkethe udoti osesimweni semisila namanzi. I-cyanide yamahhala, umkhiqizo oyinhloko wenqubo ye-metallurgical, ibhekwa njengendlela enobuthi kakhulu ye-cyanide njengoba ingabangela imiphumela eyingozi ngisho nasezintweni eziphansi kakhulu. Ezinye izinhlobo ze-cyanide zingancibilika kalula zibe yi-cyanide yamahhala ngaphansi kwezimo ezine-asidi.

Isidingo Sokwelapha i-Cyanide - equkethe i-Tailings

Ukuncishiswa kwemvelo kwe-cyanide kuma-tailings ku-bio - izinga elingenabungozi kuthatha isikhathi eside. Ngakho-ke, i-cyanide - enemisila kufanele iphathwe ngaphambi kokukhishelwa endaweni ezungezile ukuze kugwenywe umthelela omubi endaweni etholwayo. Ukubola kwe-cyanide ngaphakathi Igolide leaching tailings kube ngenye yezinselelo ezinkulu ezibhekene nezimayini zegolide emashumini ambalwa eminyaka adlule. Ngakho-ke, ukwelashwa okufanele kwe-cyanide kuma-tailings kuyadingeka ukugwema noma ukunciphisa izinkinga zemvelo nempilo.

Izindlela Zokwelapha Ezikhona Ze-Cyanide

Eminyakeni edlule, amasu amaningana ebhayoloji, ezinto ezibonakalayo, namakhemikhali, kanye ne-electrolytic oxidation kanye nezinye izindlela zokubola noma zokubuyisa i-cyanide, athuthukiswe ukwelapha izixazululo ze-cyanide. Njengamanje, amasu asetshenziswa kabanzi ekukhiqizweni kwezimboni kokubola kwe-cyanide afaka inqubo ye-INCO, inqubo ye-alkaline chlorination, kanye nokusebenza I-Carbon inqubo, inqubo ye-ozonation, inqubo ye-hydrogen peroxide oxidation, kanye nokubuyiselwa kwe-hydrogen cyanide. Izinqubo ze-INCO kanye ne-alkaline chlorination zisetshenziselwa ukususa i-cyanide enezinga eliphezulu kodwa azikwazi ukuyonakalisa ngokuphelele i-cyanide. I-activated carbon ingamunca futhi ihlanganise i-cyanide kodwa ayikwazi ukuyibolisa. Izinqubo ze-ozonation kanye ne-hydrogen peroxide oxidation zisetshenziselwa ukwelapha i-cyanide enezinga eliphansi ngokungcola okuncane kwesibili, kodwa zibiza kakhulu. Ukubuyiselwa kwe-hydrogen cyanide kunganciphisa okuqukethwe kwe-cyanide kanye nezindleko kodwa akuhlangabezani nezidingo zokugcwalisa i-backings.

I-Backfilling Technology kanye noCyanide Removal Research

Ubuchwepheshe bokugcwalisa i-backfill buyindlela engcono kakhulu yokuthi izimayini zidlule ezinkingeni zezinsizakusebenza, imvelo, kanye nokuphepha. Kodwa-ke, izinto eziyingozi njengezinto zensimbi ezisele kanye nezinyibilikisi zegolide - i-leaching tailings kufanele ziphathwe kahle ngaphambi kokugcwalisa i-backfilling ukuze kuvinjelwe ukungcoliswa kwamanzi angaphansi komhlaba. Ucwaningo ngokususwa kwe-cyanide lugxile kakhulu emanzini angcolile ezimbonini. Ucwaningo ngokususwa kwe-cyanide ku-leaching tailings zegolide - leaching, okuhlanganisa amanzi angcolile kanye ne-tailings, lusalinganiselwe. Ukwakheka kwamaminerali egolide ore kuyinkimbinkimbi kakhulu, futhi izinto zamakhemikhali ezifana ne-cyanide, Ikhabhoni Esebenzayo impuphu, kanye ne-hydrogen peroxide kuyangezwa enkambisweni yokuzuza, okwenza ukwakheka kwe-tailings kube nzima nakakhulu. Iningi le-cyanide esele e-tailings linamathela kakhulu ebusweni bamaminerali, futhi inani elincane kuphela le-cyanide yamahhala kanye ne-hydrolyzed complex cyanide elingangena ku-leachate. Ngakho-ke, kubalulekile ukuhlola izindlela eziphumelela kakhulu zokususa i-cyanide.

Ubunkimbinkimbi be-CN⁻ Ukuwohloka kanye Neziqondiso Zocwaningo Lwesikhathi esizayo

Ukubola okufanele kwe-CN⁻ kuyinqubo eyinkimbinkimbi. Kudinga inhlanganisela yezindlela eziningi zokuthuthukisa ukusebenza kahle kokwelashwa nokucabangela umnotho wokwelapha. Ukusebenzisa izindlela ezihlanganisiwe zokususa i-cyanide kuyisiqondiso esithembisayo socwaningo lwangomuso.