Chithandizo cha Cyanide mu Golide Leaching Tailings

Kuchuluka kwa Cyanidation ndi Kuopsa kwa Cyanide

Kusakaniza kwa cyanidation kumagwiritsidwa ntchito kwambiri ndi migodi yambiri ya golide padziko lonse lapansi ndipo mwina kudzakhalabe kofala m'zaka zikubwerazi. Komabe, Cyanide ndi poizoni woopsa. Kupezeka kwake m'madzi otayira ndi m'matope kungakhudze kwambiri anthu ndi chilengedwe. Chifukwa chake, ndikofunikira kuwongolera zonyansazi.

Cyanide Leaching Process and Its By-products

Kutulutsa kwa cyanide kumasintha golide kukhala ma cyanide complexes osungunuka m'madzi ndipo pakadali pano ndi njira yodziwika bwino komanso yothandiza kwambiri yochotsera golide kuchokera ku miyala. Njirayi imafuna cyanide yochulukirapo kuti iwonjezere kubweza golide, ndikupanga cyanide - yokhala ndi zinyalala monga momwe zimakhalira ndi zinyalala ndi madzi. Cyanide yaulere, yomwe imachokera ku metallurgical process, imaonedwa kuti ndi mtundu wa cyanide woopsa kwambiri chifukwa ingayambitse zotsatirapo zoipa ngakhale pakakhala zochepa. Mitundu ina ya cyanide imatha kusungunuka mosavuta kukhala cyanide yaulere pansi pa acidity.

Kufunika Kochizira Cyanide - yokhala ndi Michira

Kuchepa kwa cyanide m'malo obisika a migodi kufika pamlingo wosavulaza kumatenga nthawi yayitali. Chifukwa chake, malo obisika okhala ndi cyanide ayenera kukonzedwa asanatulutsidwe m'malo obisika kuti apewe kuwonongeka kwa chilengedwe. Kuwonongeka kwa cyanide m'malo obisika a golide kwakhala chimodzi mwazovuta zazikulu zomwe migodi ya golide yakumana nazo m'zaka makumi angapo zapitazi. Chifukwa chake, chithandizo choyenera cha cyanide m'malo obisika ndi chofunikira kuti tipewe kapena kuchepetsa mavuto azachilengedwe komanso azaumoyo.

Njira Zomwe Zilipo Zochizira Cyanide

Kwa zaka zambiri, njira zingapo zamoyo, zakuthupi, ndi zamakemikolo, komanso njira zina zowola kapena kubwezeretsa cyanide, zapangidwa kuti zichiritse njira zothetsera cyanide. Pakadali pano, njira zomwe zimagwiritsidwa ntchito kwambiri popanga mafakitale a cyanide ndi monga njira ya INCO, njira ya alkaline chlorination, njira ya Carbon yogwira ntchito , njira ya ozonation, njira ya hydrogen peroxide oxidation, ndi njira yobwezeretsa hydrogen cyanide. Njira za INCO ndi alkaline chlorination zimagwiritsidwa ntchito kuchotsa cyanide yokhala ndi kuchuluka kwakukulu koma sizingawononge cyanide kwathunthu. Carbon yogwira ntchito imatha kuyamwa ndikuphatikiza cyanide koma singathe kuiwononga. Njira zowola za ozonation ndi hydrogen peroxide zimagwiritsidwa ntchito pochiza cyanide yokhala ndi kuchuluka kochepa popanda kuipitsa kwambiri, koma zimakhala zodula kwambiri. Kubwezeretsa hydrogen cyanide kumatha kuchepetsa kuchuluka kwa cyanide ndi ndalama koma sikukwaniritsa zofunikira pakubwezeretsa matope.

Backfilling Technology ndi Kafukufuku Wochotsa Cyanide

Ukadaulo wodzaza madzi ndi njira yabwino kwambiri kuti migodi idutse m'mipata ya zinthu, chilengedwe, ndi chitetezo. Komabe, zinthu zovulaza monga zitsulo zotsalira ndi zosungunulira mu golide - zotulutsa madzi ziyenera kukonzedwa bwino musanaziike pansi kuti mupewe kuipitsa madzi apansi panthaka. Kafukufuku wokhudza kuchotsa cyanide wakhala akuyang'ana kwambiri pa madzi otayira m'mafakitale. Kafukufuku wokhudza kuchotsa cyanide mu golide - zotulutsa madzi, kuphatikizapo madzi otayira ndi zotulutsa madzi, akadali ochepa. Kapangidwe ka mchere wa golide ndi kovuta, ndipo mankhwala monga cyanide, ufa wa kaboni wochitidwa , ndi hydrogen peroxide amawonjezeredwa ku njira yopangira madzi, zomwe zimapangitsa kuti zotulutsa madzi zikhale zovuta kwambiri. Cyanide yotsala yambiri mu zotulutsa madzi imamatiridwa mwamphamvu pamwamba pa mchere, ndipo cyanide yochepa chabe yaulere ndi cyanide yolimba yomwe imatha kulowa mu zotulutsa madzi. Chifukwa chake, ndikofunikira kufufuza njira zothandiza kwambiri zochotsera cyanide.

Kuvuta kwa CN⁻ Kuwola ndi Njira Yofufuza Zamtsogolo

Kuwonongeka koyenera kwa CN⁻ ndi njira yovuta. Pamafunika kuphatikizika kwa njira zingapo zopangira chithandizo chamankhwala ndikuganizira chuma chamankhwala. Kugwiritsa ntchito njira zophatikizira kuchotsa cyanide ndi njira yodalirika pakufufuza kwamtsogolo.