Ubushakashatsi bushya bwakozwe ku kirwa cya New Caledoniya cyo mu majyepfo ya pasifika, bwerekana ko inzira itera igikonjo imbere mu cyayi.
       Nickelubucukuzi ni inganda nyamukuru muri New Caledoniya;ikirwa gito ni kimwe mu bitanga ibyuma binini ku isi.Ariko guhuza ibyobo binini bifunguye hamwe nimvura nyinshi byatumye nikel nyinshi, isasu hamwe nibindi byuma birangirira mumazi akikije ibirwa.Umwanda wa Nickel urashobora kubangamira ubuzima bwabantu kuko kwibanda ku mafi n’ibishishwa byiyongera uko uzamuka urunigi rwibiryo.
Marc Jeannin, injeniyeri w’ibidukikije muri kaminuza ya La Rochelle mu Bufaransa, na bagenzi be bo muri kaminuza ya New Caledoniya i Nouméa bibajije niba bashobora gukoresha inzira yo gukingira gatolika, tekinike ikoreshwa mu kurwanya ruswa y’ibyuma byo mu nyanja, kugira ngo babone bimwe nikel kuva mumazi.
Iyo umuyagankuba udakomeye ushyizwe mubyuma mumazi yinyanja, karubone ya calcium na hydroxide ya magnesium bigwa mumazi hanyuma bigashiramo imyanda hejuru yicyuma.Iyi nzira ntabwo yigeze yigwa imbere yumwanda wibyuma nka nikel, abashakashatsi bibajije niba ion zimwe na zimwe za nikel zishobora no kugwa mumvura.
Itsinda ryataye insinga z'icyuma mu ndobo y'amazi yo mu nyanja yariyongereyeho umunyu wa NiCl2 kandi ikoresha amashanyarazi yoroheje muri yo iminsi irindwi.Nyuma yiki gihe gito, basanze hafi 24 ku ijana bya nikel yari ihari byafatiwe mububiko bunini.
Jannen avuga ko bishobora kuba inzira ihendutse kandi yoroshye kuyikuramonikelkwanduza.Ati: "Ntidushobora gukuraho burundu umwanda, ariko ibyo bishobora kuba inzira imwe yo kubigabanya."
Ibisubizo byari bimwe bidasanzwe, kubera ko kurandura umwanda bitari imwe mu ntego za gahunda y’ubushakashatsi bwa mbere.Ubushakashatsi nyamukuru bwa Janine bwibanze ku guteza imbere uburyo bwo kurwanya isuri ku nkombe: yiga uburyo amabuye y'indimu yashyinguwe mu nsinga z’umugozi hejuru y’inyanja ashobora gukora nka sima karemano, ifasha guhagarika ubutunzi munsi y’imigezi cyangwa ku mucanga.
Jannin yatangije umushinga muri New Caledoniya kugirango hamenyekane niba umuyoboro ushobora gufata ibyuma bihagije kugira ngo bifashe kwiga amateka y’urubuga rwanduye nikel.Yaravuze ati: “Ariko igihe twabonye ko dushobora gufata nikel nyinshi, twatangiye gutekereza ku nganda zishobora gukoreshwa.”
Umuhanga mu by'imiti w’ibidukikije witwa Christine Orians wo muri kaminuza y’Ubwongereza ya Columbiya i Vancouver, avuga ko ubwo buryo butakuraho nikel gusa, ahubwo bukuraho n’ibindi byuma.Yatangarije Chemistry World ati: "Imvura igwa ntabwo ihitamo cyane."Ati: "Sinzi niba bizagira akamaro mu gukuraho ibyuma bifite ubumara buhagije udakuyeho ibyuma byagira akamaro nk'icyuma."
Jeanning, ariko, ntahangayikishijwe nuko sisitemu, iyo ikozwe ku rugero runini, izakuraho amabuye y'agaciro mu nyanja.Yavuze ko mu bushakashatsi bwakuyeho 3 ku ijana bya calcium na 0,4 ku ijana bya magnesium mu mazi, ibyuma biri mu nyanja ni byinshi bihagije ku buryo bitagira ingaruka nyinshi.
By'umwihariko, Jeannin yatanze igitekerezo ko sisitemu nk'iyi ishobora koherezwa ahantu hanini ho gutakaza nikel nko ku cyambu cya Noumea kugira ngo ifashe kugabanya umubare wanikelbikarangirira mu nyanja.Ntabwo isaba kugenzura cyane kandi irashobora guhuzwa ningufu zishobora kongera ingufu nkizuba.Nickel nibindi byanduza byafashwe mubipimo birashobora no kugarurwa no gukoreshwa.
Jeanning yavuze ko we na bagenzi be bakorana n’amasosiyete yo mu Bufaransa na New Caledoniya kugira ngo bategure umushinga w’icyitegererezo ufasha kumenya niba ubwo buryo bushobora koherezwa ku ruganda.
© Royal Society of Chemistry inyandiko.andika (Itariki nshya (). GetFullYear ());Numero yo kwiyandikisha y'abagiraneza: 207890