I-Biochar Isusa I-Cyanide Emayini Yegolide Tailings

I-Cyanide ingelinye lamakhemikhali anobuthi kakhulu asetshenziswa kakhulu izinkampani ezikhiqiza izimbiwa emhlabeni jikelele ohlelweni lwe-cyanidation ukuze kukhishwe amaminerali ayigugu njengegolide nesiliva. Ngenxa yokuhlobana kwayo okuphezulu negolide nesiliva, I-Cyanide Ungakhetha ngokukhetha lezi zinsimbi ezinsimbini. Cyanide futhi i-cyanide izakhiwo emifudlaneni yamanzi angcolile zilawulwa ngokuqinile. Izinsalela kanye nemifudlana yamanzi angcolile equkethe i-cyanide kufanele ihlanzwe ukuze kuncishiswe ukugcwala kwenani eliphelele kanye ne-cyanide yamahhala ngaphansi kwemikhawulo enqunyiwe.

Ukusabela kokucekelwa phansi kwemvelo kungenza i-cyanide ingabi nobuthi, ikhiqize izinhlanganisela ze-carbon dioxide ne-nitrogen. Lokhu kusabela kwemvelo kube yindlela evame ukusetshenziswa kakhulu embonini yezimayini ukuze kuncishiswe i-cyanide. Kodwa-ke, izinga lokuwohloka kwemvelo lincike kakhulu ezimweni zemvelo futhi kungenzeka lingakhiqizi indle yekhwalithi efiselekayo unyaka wonke kuzo zonke izimo. Ubuchwepheshe obuhlanganisa izindlela zamakhemikhali, zebhayoloji, ze-electrochemical, kanye nezindlela ze-photochemical sezenziwe ukuze kuncishiswe i-cyanide nama-complexes ayo abe nemikhawulo enqunyiwe emanzini angcolile.

Imayini yegolide iCyanide Tailings

Ukukhipha amanzi emayini ene-asidi evela ezimayini zegolide kuqukethe izinsimbi ezisindayo kodwa futhi ne-cyanide, isakhi semvelo esinemiphumela ebulalayo. I-Cyanide isetshenziswa ngezindlela ezimbili. Eyokuqala i-heap leaching, lapho isisombululo se-cyanide sifafazwa ezindundumeni zensimbi echotshoziwe. Lokhu kuncibilikisa igolide, elibe seliqoqwa phezu kwephedi elingezansi. Inqubo iphindaphindiwe kuze kube yilapho lonke igolide litholakala. Indlela yesibili i-carbon - in - pulp, lapho i-cyanide ifafazwa khona emathangini agelezayo agcwele insimbi futhi aqoqwe ngendlela elawulwa kakhulu.

Imisila ihlala inobuthi obuphezulu. Nakuba i-cyanide ibola ngokushesha emanzini angaphezulu, ingahlala emanzini angaphansi komhlaba isikhathi eside. Izingozi zomsila we-cyanide ziye zaholela ekubulaleni okukhulu kwezinhlanzi, ukungcoliswa kwamanzi okuphuza, kanye nokulimala kwendawo yokulima.

I-Biochar yokususwa kwe-Heavy Metal ne-Cyanide

Kusungulwe inqubo kusetshenziswa i-biochar ebiza kancane eyenziwe nge-sawdust, eveza imiphumela yokugcina ephumelelayo. I-Biochar ngamalahle akhiqizwa yi-pyrolysis noma ukubola okushisayo kwe-biomass lapho kungekho moya-mpilo. Inezinhlelo eziningi zokusebenza, kusukela ekuthuthukiseni ukuvunda komhlabathi kanye nokukhiqiza kwezolimo kuya ekuthathweni kwekhabhoni njengendlela yokunciphisa ukuguquguquka kwesimo sezulu.

I-Biochar ikhonjiswe ukuthi yehlisa ukugxila kwama-ion e-cyanide nezinye izinsimbi ezisindayo emanzini angcolile. Imfucumfucu ye-sawdust, evamise ukuchithwa, inamandla okukhiqiza i-methane, igesi ebamba ukushisa enamandla, noma ibangele imililo. Ngokusebenzisa le mfucumfucu evela embonini yezingodo njengesixazululo semfucuza yegolide emayini, ukuzuza okusimeme kakhulu kufinyelelwa.

Ososayensi bahlole i-biochar ngamanzi angcolile aqukethe i-cyanide, i-chromium, insimbi, i-zinc, i-nickel, i-lead, i-manganese, nethusi. I-pH yagcinwa ngezinga eliqhubekayo lika-7 ngokungeza i-carbon dioxide. I-pH ephakeme yatholwa ukuze ibambezele inqubo yokumuncwa. Imiphumela yabonisa ukuthi i-biochar, njenge-bio - imunca ekwelashweni kwamanzi, inesilinganiso sokumuncwa esimaphakathi esingu-73%.

Uma usayizi wezinhlayiyana ze-biochar uncane, inani elikhulu lokungcola elisusiwe. Indawo enkulu engaphezulu iholela ezingeni eliphezulu lokumunca. Ukugcwalisa, okubangelwa ukuvaleka kwezimbotshana ze-biochar ngesikhathi senqubo yokumuncwa kwe-bio, kufinyelelwe ngemva kwamahora angu-14.

I-Biochar yethula ikhambi elithembisayo neliqhubekayo lokwelashwa kwe Izinsalela zemayini yegolide, ukwehlisa ngempumelelo amazinga e-cyanide enobuthi nezinsimbi ezisindayo, futhi okungase kube nokuguqula indlela imboni yezimayini ephatha ngayo imfucuza yayo.