Biochar wepụrụ Cyanide na ọdụ ọdụ ọla edo

Cyanide bụ otu n'ime kemịkalụ kachasị egbu egbu nke ụlọ ọrụ na-ahụ maka ịnweta ịnweta ụwa na-ejikarị eme ihe na usoro cyanidation iji nweta mineral dị oké ọnụ ahịa dị ka ọla edo na ọlaọcha. N'ihi oke mmekọrịta ya maka ọla edo na ọlaọcha. Cyanide nwere ike ịhọpụta ọla ndị a site na ọla. Cyanide na cyanide A na-ahazi ogige ndị dị na iyi mmiri na-ekpofu ahịhịa nke ọma. A ga-agwọrịrị ihe ndị fọdụrụ na mmiri mkpofu nwere cyanide iji belata mkpokọta cyanide n'efu n'okpuru oke enyere.

Natural degradation reactions can render cyanide non - toxic, producing carbon dioxide and nitrogen compounds. These natural reactions have been the most commonly used method in the mining industry to attenuate cyanide. However, the rate of natural degradation depends significantly on environmental conditions and may not yield sewage of the desired quality throughout the year in all cases. Technologies including chemical, biological, electrochemical, and photochemical methods have been developed to reduce cyanide and its complexes to the prescribed limits in wastewater.

Ọdụdọ Cyanide nke m ọla edo

Ngwuputa ogbunigwe nke acidic sitere na ngwuputa ọla edo nwere ọla di arọ mana o nwekwara cyanide, ngwakọta organic nwere mmetụta nwere ike igbu ya. A na-eji Cyanide mee ihe n'ụzọ abụọ. Nke mbụ bụ mkpọmkpọ ebe, bụ́ ebe a na-efesa ihe ngwọta cyanide n'elu ikpo ọla ndị e gwepịara egwepịa. Nke a na-agbaze ọla edo, nke a na-anakọta na pad n'okpuru. A na-emeghachi usoro ahụ ruo mgbe ewepụtara ọla edo niile. Ụzọ nke abụọ bụ carbon - in - pulp, ebe a na-efesa cyanide n'ime tankị na-agbapụta nke jupụtara na mmanụ ma na-achịkọta ya n'ụzọ dị irè karị.

Ọdụdọ na-anọgide na-egbu egbu. Ọ bụ ezie na cyanide na-emebi ngwa ngwa na mmiri dị n'elu, ọ nwere ike ịdịgide na mmiri ala ruo ogologo oge. Ihe mberede ọdụdụ cyanide ebutela igbu ọtụtụ azụ̀, mmetọ mmiri ọṅụṅụ, na imebi ala ubi.

Biochar maka mwepu ígwè dị arọ na cyanide

Emepụtala usoro site na iji biochar dị ọnụ ala emere site na sawdust, na-arụpụta nsonaazụ ikpeazụ dị irè. Biochar bụ unyi na-emepụta site na pyrolysis ma ọ bụ ire ere nke biomass na enweghị oxygen. Ọ nwere ọtụtụ ngwa, site na ịkwalite ọmụmụ ala na nrụpụta ọrụ ugbo ruo n'ikesa carbon dị ka ụzọ enwere ike isi belata mgbanwe ihu igwe.

E gosiputara Biochar iji belata mkpokọta ion cyanide na ọla ndị ọzọ dị arọ na ọdụ ọdụ mmiri na-ekpofu. Ihe mkpofu sawdust, nke a na-ejupụtakarị n'ala, nwere ike imepụta methane, gas na-ekpo ọkụ na-ekpo ọkụ, ma ọ bụ bute ọkụ. Site n'iji ihe mkpofu a sitere na ụlọ ọrụ osisi dị ka ihe ngwọta maka mkpofu ọla edo, a na-enweta mmeri na-adịgide adịgide - ọnọdụ mmeri.

Ndị ọkà mmụta sayensị ji mmiri mkpofu nwere cyanide, chromium, iron, zinc, nickel, lead, manganese, na ọla kọpa nwale biochar. A na-edobe pH na ọnụ ọgụgụ 7 mgbe niile site n'ịgbakwụnye carbon dioxide. Achọpụtara pH dị elu iji mee ka usoro mmịpụta kwụsịlata. Nsonaazụ gosiri na biochar, dị ka bio-na-etinye aka na ọgwụgwọ mmiri, nwere nkezi nnabata nke 73%.

Ka urughuru nke biochar dị ntakịrị, ka ọnụ ọgụgụ ndị na-emerụ emerụ na-ewepụ. Mpaghara elu ka ukwuu na-eduga n'ọ̀tụ̀tụ̀ nnabata dị elu. Saturation, nke a na-ekwu na mmechi nke pores biochar n'oge usoro nnabata bio, ruru mgbe awa 14 gachara.

Biochar na-enye ihe ngwọta na-ekwe nkwa ma na-adigide maka ọgwụgwọ nke ọdụdụ ọla edo, nke ọma na-ebelata ọkwa cyanide na-egbu egbu na ọla dị arọ, ma nwee ike gbanwee ụzọ ụlọ ọrụ na-egwuputa ihe si ejikwa ihe mkpofu ya.