Bincike da Aiwatar da Fasahar Kula da Gurbacewar Ruwa na Sodium Cyanide

Gabatarwa

Sodium cyanide sinadari ne mai guba wanda ake amfani da shi sosai a fannoni daban-daban na masana'antu kamar hakar ma'adinai, samar da wutar lantarki, da kuma hada sinadarai. Duk da haka, rashin amfani da shi da kuma zubar da shi ba daidai ba zai iya haifar da gurɓataccen muhalli mai tsanani kuma yana haifar da manyan haɗari ga lafiyar ɗan adam da tsarin muhalli. Sakamakon haka, haɓakawa da amfani da ingantattun fasahar sarrafa gurɓataccen iska ta Sodium cyanide sun zama muhimmin fanni na bincike da aiki.

Hanyoyin Magani na Gargajiya don Gurɓacewar Sodium Cyanide

Alkaline Chlorination

Yin amfani da sinadarin alkaline chlorine yana ɗaya daga cikin hanyoyin da aka fi amfani da su wajen magance ruwan sharar gida mai ɗauke da sinadarin cyanide. A cikin wannan tsari, ana ƙara sinadarai masu ɗauke da sinadarin chlorine ko chlorine (kamar sodium hypochlorite) a cikin ruwan sharar gida a ƙarƙashin yanayin alkaline. Wannan amsawar tana faruwa a matakai biyu. Da farko, ana haɗa sinadarin cyanide zuwa cyanogen chloride, sannan kuma cyanogen chloride ya samar da sinadarin cyanate. A ƙarshe, ana ƙara haɗa sinadarin cyanate don samar da sinadarin ammonia da Carbon ates. Tsarin chlorine na alkaline na gargajiya yawanci yana buƙatar babban pH na kusan 10.5 da kuma babban ƙarfin oxidation - reduction (ORP) na + 600 mV. Duk da haka, tsari ne mai matuƙar amfani da sinadarai, yana cinye babban adadin sodium hypochlorite. Misali, ana buƙatar kimanin galan 23 na maganin sodium hypochlorite na 12.5% ​​don lalata oza ɗaya na cyanide.

Maganin Halittu

Maganin kwayoyin halitta na cyanide - dauke da ruwan sha ya ƙunshi amfani da takamaiman ƙwayoyin cuta. Kwayoyin Aerobic irin su Pseudomonas, Alcaligenes, da Achromobacteria na iya oxidize cyanide zuwa cyanate. Bayan haka, ion cyanate yana canzawa ta hanyar ilimin halitta zuwa ammonia da bicarbonate. Wannan hanya tana da tasiri lokacin da ƙwayar cyanide a cikin ruwan datti ya yi kadan. Duk da haka, yana buƙatar kulawa da hankali game da yanayin muhalli kamar zafin jiki, pH, da kasancewar abubuwan gina jiki masu dacewa don tabbatar da girma da aiki na ƙananan ƙwayoyin cuta.

Hanyar Acidification

Hanyar acidification hanya ce ta al'ada don magance babban cyanide mai yawa - mai dauke da ruwa mai daskarewa a masana'antu kamar hakar gwal da cyanide electroplating. Ta wannan hanya, ana sanya ruwan datti don fitar da iskar hydrogen cyanide, wanda za'a iya dawo da shi ko kuma a kara magani. Wannan hanya tana da fa'idar samun damar dawo da cyanide daga ruwan datti, amma yana buƙatar kulawa da hankali da iskar gas ɗin hydrogen cyanide da aka saki don hana gurɓacewar muhalli da tabbatar da tsaro.

Sabbin Fasaha don Kula da Gurbacewar Gurasar Sodium Cyanide

Advanced Oxidation Processes (AOPs)

Tsarin hada iskar shaka mai zurfi, kamar oxidation na ozone da ultraviolet (UV) - oxidation mai catalyzed, sun nuna babban tasiri a cikin maganin Sodium Cyanide - ruwa mai gurbata. Ozone oxidation na iya lalata cyanide yadda ya kamata zuwa abubuwa marasa cutarwa. Kwayoyin ozone suna amsawa da cyanide, suna karya haɗin sinadarai kuma suna canza shi zuwa mahaɗan da suka fi karko. A gefe guda kuma, oxidation na UV - catalyzed, sau da yawa yana amfani da catalysts tare da hasken ultraviolet da oxidants kamar hydrogen peroxide. Misali, a cikin tsarin UV - H₂O₂, hasken ultraviolet yana kunna hydrogen peroxide, yana samar da radicals masu amsawa sosai waɗanda zasu iya lalata cyanide cikin sauri. Waɗannan hanyoyin gabaɗaya sun fi inganci kuma suna iya cimma ƙarancin yawan cyanide da suka rage idan aka kwatanta da hanyoyin gargajiya.

Nanotechnology - tushen Hanyoyi

Nanotechnology yana fitowa a matsayin fili mai ban sha'awa don inganta sarrafa gurɓataccen cyanide. Nanomaterials, irin su nanocatalysts, na iya haɓaka ƙimar amsawar matakan lalata cyanide. Misali, wasu nanocatalysts na tushen ƙarfe na iya zaɓin haɓaka oxidation na cyanide a ƙarƙashin yanayi mara kyau. Bugu da ƙari, ana iya amfani da nanofiltration membranes don raba cyanide da sauran gurɓataccen ruwa daga ruwa. Wadannan membranes suna da pores a cikin kewayon nanometer, suna ba da izinin kawar da ƙananan ƙwayoyin cuta da ions, ciki har da cyanide, yayin da suke riƙe da abubuwa masu mahimmanci da kuma rage yawan sharar gida.

Al'amuran Aikace-aikace na Fasahar Kula da Gurɓatarwar Sodium Cyanide

A Masana'antar Ma'adinai

A fannin hakar zinare, inda ake amfani da sinadarin sodium cyanide wajen haƙo zinare, fasahar sarrafa gurɓataccen iska tana da matuƙar muhimmanci. Misali, wasu manyan ayyukan hakar ma'adinai sun ɗauki haɗakar sinadarin alkaline chlorine da kuma maganin halittu. Da farko, ana amfani da tsarin chlorine na alkaline don rage yawan sinadarin cyanide a cikin ruwan sharar gida zuwa wani mataki. Sannan, ana ƙara kula da ruwan sharar ta hanyar ilimin halittu don cika ƙa'idodin fitar da iskar shara mai tsauri. A wasu lokuta, ana kuma gwada sabbin fasahohi kamar iskar sharar UV. Ma'adanai a yankunan da ke da alaƙa da muhalli suna da kwarin gwiwa musamman don ɗaukar fasahohin sarrafa gurɓataccen iska masu inganci don rage tasirin da ke kan muhallin da ke kewaye.

A cikin Maganin Ruwan Sharar Masana'antu

Masana'antu masu sarrafa wutar lantarki waɗanda ke amfani da baho na cyanide kuma suna samar da adadi mai yawa na cyanide - mai ɗauke da ruwan sha. Yawancin na'urorin lantarki na zamani sun sanya a kan wuraren kula da ruwan sharar gida. Sau da yawa suna amfani da jerin matakan jiyya, farawa tare da hazo na ƙarfe mai nauyi da ke hade da hadaddun cyanide, sannan lalata cyanide kyauta ta hanyar amfani da hanyoyin kamar alkaline chlorination ko ci-gaba oxidation matakai. Wasu tsire-tsire sun kuma aiwatar da tsarin kulawa na ci gaba don tabbatar da cewa ruwan da aka yi da shi ya cika ka'idojin da aka tsara kafin a fitar da su cikin magudanar ruwa ko ruwan saman.

Kalubale da Halayen Gaba

Duk da samun fasahohin sarrafa gurɓataccen sinadarin sodium cyanide iri-iri, ƙalubale da yawa sun rage. Ɗaya daga cikin manyan ƙalubalen shine tsadar kuɗi da ke da alaƙa da wasu fasahar jiyya na ci gaba, musamman ga ƙananan masana'antu - da matsakaita. Bugu da ƙari, maganin hadaddun cyanide - mai ɗauke da ruwa mai datti, wanda zai iya ƙunsar cakuda mahaɗan cyanide da sauran gurɓatattun abubuwa, yana buƙatar ingantattun hanyoyin magani.

Neman gaba, ana buƙatar ƙarin bincike da haɓaka don haɓaka inganci da farashi - tasirin fasahohin da ake da su. Wannan na iya haɗawa da haɓaka yanayin halayen halayen, haɓaka mafi kwanciyar hankali da ingantaccen abin ƙarfafawa, da haɗa hanyoyin hanyoyin jiyya daban-daban. Haka kuma, binciken sabbin dabarun jiyya da sabbin abubuwa, kamar yin amfani da ƙwayoyin cuta na ƙwayoyin cuta don haɓaka lalata cyanide ko aikace-aikacen kayan almara tare da kaddarorin na musamman don kawar da cyanide, yana da babban alƙawari don ƙarin ingantaccen sarrafa gurɓataccen sodium cyanide a cikin dogon lokaci.

A ƙarshe, bincike da aikace-aikacen fasahar sarrafa gurɓataccen sinadarin sodium cyanide suna da mahimmanci don kare muhalli da lafiyar ɗan adam. Ci gaba da haɓakawa da haɓaka waɗannan fasahohin za su taka muhimmiyar rawa wajen ci gaban masana'antu mai dorewa da kare muhalli.