I-Biochar Isusa i-Cyanide kuMbindi weGolide

I-Cyanide yenye yeekhemikhali ezinobungozi ezisetyenziswa kakhulu ziinkampani zehlabathi ezicubungula izimbiwa kwinkqubo yokukhupha i-cyanidation ukuze zikhuphe izimbiwa ezixabisekileyo ezifana negolide nesilivere. Ngenxa yokuba inomdla kakhulu kwigolide nesilivere, i-Cyanide ingazikhupha ngokukhetha ezi zinyithi kwiintsimbi. Ii-Cyanide kunye nee -cyanide complexes kwimijelo yamanzi amdaka zilawulwa ngokungqongqo. Iintsalela kunye nemijelo yamanzi amdaka equlethe i-cyanide kufuneka ziphathwe ukunciphisa ubuninzi be-cyanide iyonke kunye nekhululekileyo ngaphantsi kwemida emiselweyo.

Iimpendulo zokuwohloka kwendalo zingenza i-cyanide ingabi yityhefu, ivelise iikhompawundi zeCarbon dioxide kunye ne-nitrogen. Ezi mpendulo zendalo ziye zaba yeyona ndlela isetyenziswa kakhulu kwishishini lezemigodi ukunciphisa i-cyanide. Nangona kunjalo, izinga lokuwohloka kwendalo lixhomekeke kakhulu kwiimeko zendalo kwaye lisenokungavelisi amanzi amdaka asemgangathweni ofunekayo unyaka wonke kuzo zonke iimeko. Ubuchwepheshe obuquka iindlela zeekhemikhali, zebhayoloji, ze-electrochemical, kunye neze-photochemical buphuhlisiwe ukunciphisa i-cyanide kunye neekhompawundi zayo ukuya 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 inika isisombululo esithembisayo nesizinzileyo sokunyanga intsalela yegolide , inciphisa ngempumelelo amanqanaba e-cyanide enobuthi kunye neentsimbi ezinzima, kwaye inokuguqula indlela imboni yezemigodi elawula ngayo inkunkuma yayo.