I-Biochar Isusa i-Cyanide kuMbindi weGolide

I-Cyanide yenye yezona khemikhali ziyityhefu esetyenziswa kakhulu ziinkampani zehlabathi ezilungisa izimbiwa kwinkqubo ye-cyanidation ukuze ikhuphe izimbiwa ezixabisekileyo ezifana negolide nesilivere. Ngenxa yokunxulumana kwayo okuphezulu negolide nesilivere, benqanda inokukhetha ezi ntsimbi ziphuma kwintsimbi ekrwada. Cyanide kunye i-cyanide izakhiwo kwimijelo yamanzi amdaka zilawulwa ngokungqongqo. Iintsalela kunye nemijelo yamanzi amdaka equlethe i-cyanide kufuneka icocwe ukuze kuncitshiswe i-cyanide epheleleyo kunye nekhululekileyo ngaphantsi kwemida emiselweyo.

Iintshukumo zokonakala kwendalo zinokwenza ukuba icyanide ingabi yityhefu, ivelise ikharbon diokside kunye nenitrogen compounds. Ezi ntshukumo zendalo ziyeyona ndlela ixhaphakileyo esetyenziswa kwishishini lemigodi ukuthomalalisa icyanide. Nangona kunjalo, izinga lokuthotywa kwendalo lixhomekeke kakhulu kwiimeko zokusingqongileyo kwaye lisenokungavelisi ilindle lomgangatho ofunekayo unyaka wonke kuzo zonke iimeko. Ubuchwephesha obubandakanya iikhemikhali, zebhayoloji, iindlela ze-electrochemical, kunye neendlela zefotochemical ziye zaphuhliswa ukunciphisa i-cyanide kunye nezakhiwo zayo kwimida emiselweyo kumanzi amdaka.

Iintsalela zezimbiwa zeCyanide eMgodini weGolide

Umsele omuncu ophuma kumgodi wegolide uqulathe iintsimbi ezinzima kodwa kunye necyanide, ikhompawundi ephilayo eneziphumo ezinokubulala. I-Cyanide isetyenziswa ngeendlela ezimbini. Eyokuqala kukuvuza kwemfumba, apho isisombululo secyanide sitshizwa kwiimfumba zentsimbi ekrwada. Oku kunyibilikisa igolide, ethi ke iqokelelwe kwiphedi engezantsi. Inkqubo iphinda iphindwe ide ifumaneke yonke igolide. Indlela yesibini yi-carbon-in-pulp, apho i-cyanide itshizwa kwiitanki ezikhuphayo ezizaliswe nge-ore kwaye ziqokelelwe ngendlela elawulwayo.

Iintsalela zezimbiwa zihlala zinetyhefu kakhulu. Nangona i-cyanide ibola ngokukhawuleza emanzini angaphezulu, inokuqhubeka kumanzi aphantsi komhlaba ixesha elide. Iingozi ze-cyanide tailings ziye zakhokelela ekubulaweni kweentlanzi ezinkulu, ukungcoliswa kwamanzi okusela, kunye nomonakalo kumhlaba wokulima.

I-Biochar yeNsimbi enzima kunye nokususwa kweCyanide

Inkqubo iye yaphuhliswa kusetyenziswa i-biochar enexabiso eliphantsi eyenziwe ngothuli lwamaplanga, ivelisa iziphumo ezisebenzayo zokugqibela. I-Biochar i-charcoal eveliswa yi-pyrolysis okanye ukuchithwa kwe-thermal ye-biomass ngokungabikho kwe-oxygen. Inezicelo ezininzi, ukusuka ekwandiseni ukuchuma komhlaba kunye nemveliso yezolimo ukuya kuthinjelwe ikhabhoni njengendlela yokunciphisa utshintsho lwemozulu.

I-Biochar ibonakaliswe ukunciphisa ugxininiso lwee-ion ze-cyanide kunye nezinye isinyithi esinzima kwi-tailings yamanzi amdaka. Inkunkuma yeSawdust, edla ngokugalelwa emhlabeni, inamandla okuvelisa i-methane, igesi enamandla yendlu yobushushu, okanye ibangele imililo. Ngokusebenzisa le nkunkuma evela kushishino lwamaplanga njengesisombululo senkunkuma yasemgodini wegolide, impumelelo ezinzileyo - impumelelo iyafezekiswa.

Iingcali zenzululwazi ziye zavavanya i-biochar ngamanzi amdaka aqukethe i-cyanide, i-chromium, isinyithi, i-zinc, i-nickel, i-lead, i-manganese kunye nobhedu. I-pH igcinwe kwizinga eliqhubekayo le-7 ngokufaka i-carbon dioxide. I-pH ephezulu yafunyanwa ukucothisa inkqubo yokufunxa. Iziphumo zabonisa ukuba i-biochar, njenge-bio-efunxayo kunyango lwamanzi, inomlinganiselo wokufunxa ophakathi wama-73%.

Okukhona kuncinci ubungakanani bamasuntswana e-biochar, kokukhona likhulu inani lezingcolisi ezisusiweyo. Ummandla omkhulu womphezulu ukhokelela kwinqanaba eliphezulu lokufunxa. I-Saturation, ebangelwa ukuvala i-biochar pores ngexesha lenkqubo ye-bio-absorption, yafikelelwa emva kweeyure ze-14.

I-Biochar inikezela ngesisombululo esithembisayo nesizinzileyo kunyango lwe Iintsalela zemigodi yegolide, ukunciphisa ngokufanelekileyo amanqanaba etyhefu yecyanide kunye neentsimbi ezinzima, kwaye okunokubakho ukuguqula indlela ishishini lemigodi elilawula ngayo inkunkuma yalo.