Unyango lweCyanide kwiGold Leaching Tailings

Ukuxhaphaka kweCyanidation kunye nengozi yeCyanide

I-cyanidation isetyenziswa kakhulu sisininzi semigodi yegolide kwihlabathi jikelele kwaye iya kuhlala ixhaphakile kwiminyaka ezayo. Nangona kunjalo, benqanda sisingcolisi esiyityhefu esiyingozi. Ubukho bayo kumanzi amdaka kunye neentsalela zezimbiwa kunokuba nefuthe elibi ebantwini kunye nokusingqongileyo. Ngoko ke, kubalulekile ukulawula ezi zingcolisi.

Inkqubo yokuLeaching yeCyanide kunye neemveliso zayo

I-cyanide leaching iguqula igolide ibe ngamanzi - anyibilikayo i-cyanide i-complexes kwaye ngoku yeyona nkqubo ixhaphakileyo nesebenzayo yokukhupha igolide kwi-ores. Le nkqubo ifuna i-cyanide egqithisileyo ukuqinisa ukufunyanwa kwegolide, ukuvelisa i-cyanide - equlethe inkunkuma eluhlobo lwentsalela kunye namanzi. I-cyanide yasimahla, eyona mveliso iphambili kwinkqubo ye-metallurgical, ithathwa njengeyona ndlela inetyhefu ye-cyanide njengoko inokubangela iziphumo eziyingozi nakwizigxina ezisezantsi. Ezinye iintlobo zecyanide zinokunyibilika ngokulula zibe yicyanide yasimahla phantsi kweemeko ezineasidi.

Imfuneko yokuNyangwa kweCyanide - equlethe iiTailings

Ukuthotywa kwendalo kwe-cyanide kwimisila kwi-bio-inqanaba elingenabungozi kuthatha ixesha elide. Ke ngoko, i-cyanide-equlethe iintsalela zezimbiwa kufuneka inyangwe phambi kokuba ikhutshelwe kokusingqongileyo ukunqanda iimpembelelo ezimbi kwindawo efunyanwa kuyo. Ukubola kwe-cyanide ngaphakathi Iimisila zegolide ezivuzayo ibiyeyona micelimngeni mikhulu ejongene nemigodi yegolide kumashumi ambalwa eminyaka adlulileyo. Ke ngoko, unyango olufanelekileyo lwe-cyanide kwimisila luyimfuneko ukunqanda okanye ukunciphisa iingxaki zempilo.

Ubuchwephesha boNyango obukhoyo beCyanide

Ukutyhubela iminyaka, iindlela ezininzi zebhayoloji, zomzimba, kunye neekhemikhali, kunye ne-electrolytic oxidation kunye nezinye iindlela zokubola okanye ukubuyisela icyanide, ziye zaphuhliswa ukunyanga izisombululo zecyanide. Okwangoku, iindlela ezisetyenziswa kakhulu kwimveliso yemizi-mveliso yokubola kwecyanide ziquka inkqubo ye-INCO, inkqubo ye-alkaline chlorination, inkqubo yekhabhoni esebenzayo, inkqubo ye-ozonation, inkqubo ye-hydrogen peroxide oxidation, kunye ne-hydrogen cyanide recovery. I-INCO kunye ne-alkaline chlorination iinkqubo zisetyenziselwa ukususa i-cyanide ephezulu kodwa ayikwazi ukuthobisa ngokupheleleyo i-cyanide. Ikhabhoni esebenzayo inokubhengeza kwaye idibanise icyanide kodwa ayikwazi ukuyibolisa. Iinkqubo ze-ozonation kunye ne-hydrogen peroxide oxidation zisetyenziselwa ukunyanga i-concentration cyanide ephantsi kunye nongcoliseko lwesibini oluncinci, kodwa zibiza kakhulu. Ukubuyiswa kwe-Hydrogen cyanide kunokunciphisa umxholo we-cyanide kunye neendleko kodwa akuhlangabezani neemfuno zokuzaliswa kwe-tailings backfilling.

I-Backfilling Technology kunye noPhando lokuSuswa kweCyanide

Itekhnoloji yokubuyisela i-backfilling iyona ndlela ilungileyo yokuba imigodi iphule kwiibhotile zemithombo, indalo, kunye nokhuseleko. Nangona kunjalo, izinto ezinobungozi ezifana nentsalela yentsimbi kunye nezinyibilikisi kwigolide-iintsila ezivuzayo kufuneka ziphathwe ngokufanelekileyo phambi kokuzaliswa ngasemva ukuthintela ukungcoliseka kwamanzi aphantsi komhlaba. Uphando malunga nokususwa kwe-cyanide lujolise ikakhulu kumanzi amdaka emizi-mveliso. Uphando malunga nokususwa kwecyanide kwigolide-leaching tailings, kubandakanywa namanzi amdaka kunye neetailings, lusanqongophele. Ukwakhiwa kweeminerali zentsimbi ekrwada kuntsonkothile, kwaye imichiza efana necyanide, umgubo wekhabhoni esebenzayo, kunye nehydrogen peroxide zongezwa kwinkqubo yokuzuza, nto leyo eyenza ukuba ukwakheka kweentsimbi kube nzima ngakumbi. Uninzi lwentsalela ye-cyanide kwimisila ibhengezwa ngamandla kumphezulu wezimbiwa, kwaye kuphela isixa esincinci se-cyanide yasimahla kunye ne-hydrolyzed complex cyanide enokungena kwi-leachate. Ngoko ke, kuyimfuneko ukuhlola iindlela ezisebenzayo zokususa i-cyanide.

Ubunzima be-CN⁻ Ukubola kunye neSikhokelo soPhando lwexesha elizayo

Ukubola okufanelekileyo kwe-CN⁻ yinkqubo enzima. Ifuna indibaniselwano yeendlela ezininzi zokuphucula ukusebenza kakuhle konyango kunye nokuqwalasela uqoqosho lonyango. Ukusebenzisa iindlela ezidibeneyo zokususa i-cyanide yindlela ethembisayo yophando lwexesha elizayo.