Irin wannan tsari wanda ke haifar da ɓawon burodi a cikin tukwane na shayi zai iya taimakawanickelgurɓatawa daga ruwan teku, bisa ga sabon bincike daga tsibirin Kudancin Pacific na New Caledonia.
Ma'adinan nickel shine babban masana'antar New Caledonia, kuma ƙaramin tsibirin yana ɗaya daga cikin manyan masana'antar ƙarfe a duniya.Amma hadewar manyan ma'adanai da ruwan sama mai yawa yana nufin cewa yawan nickel, da gubar da sauran karafa, suna ƙarewa a cikin ruwan da ke kewayen tsibirin.Gurbacewar nickel na iya yin lahani ga lafiyar ɗan adam yayin da maida hankalinsa a cikin kifaye da kifaye ke ƙaruwa yayin da suke hawan sarkar abinci.
Marc Jeannin, injiniyan muhalli a Jami'ar La Rochelle ta Faransa, da abokan aikinsa a Jami'ar New Caledonia da ke Noumea sun yi mamakin ko za su iya amfani da tsarin kare katolika, wata dabarar da ake amfani da ita wajen sarrafa gurbataccen karfen teku, don jawo wasu. nickel daga ruwa..
Lokacin da aka yi amfani da wutar lantarki mai rauni a kan karafa a cikin ruwan teku, yana sa calcium carbonate da magnesium hydroxide su yi hazo daga cikin ruwa kuma adon lemun tsami suna samuwa a saman karfen.Ba a taɓa yin nazarin wannan tsari ba a gaban abubuwan gurɓataccen ƙarfe kamar nickel, kuma masu binciken sun yi mamakin ko wasu ions na nickel na iya yin hazo.
Tawagar ta jefa waya ta karfe a cikin bokitin ruwan teku na wucin gadi gauraye da gishirin NiCl2 tare da tafiyar da wutar lantarki mai sauki ta tsawon kwanaki bakwai.A ƙarshen wannan ɗan gajeren lokaci, sun gano cewa kusan kashi 24 cikin 100 na nickel ɗin da aka samo asali sun makale a cikin ma'auni.
Jeannine ya ce wannan na iya zama hanya mai arha kuma mai sauƙi don kawar da abubuwannickel."Ba za mu iya kawar da duk gurbataccen yanayi ba, amma wannan na iya zama wata hanya ta iyakance shi," in ji shi.
Sakamakon ya kasance ba zato ba tsammani, tun da kawar da gurɓataccen abu ba ya cikin manufofin shirin bincike na asali.Babban binciken Jeannin ya mayar da hankali ne kan samar da hanyoyin da za a magance zaizayar ruwa a bakin teku -ya binciko yadda ma'adinan da aka binne a cikin ragamar waya a tekun teku za su iya zama siminti na halitta, wanda ke taimakawa wajen daidaita magudanan ruwa a karkashin madatsun ruwa ko a bakin rairayin bakin teku.
Jeannin ya fara wani aiki a New Caledonia don sanin ko raga zai iya kama isassun gurɓataccen ƙarfe don taimakawa nazarin tarihinnickelgurbacewa a wurin."Amma lokacin da muka gano cewa za mu iya kama nickel mai yawa, mun fara tunanin yiwuwar aikace-aikacen masana'antu," in ji shi.
Christine Orians, wata kwararriyar kimiyyar muhalli a jami'ar British Columbia da ke Vancouver, ta ce hanyar za ta iya cire ba kawai nickel ba, har ma da tarin wasu karafa."Haɗin kai ba ya da zaɓe sosai," in ji ta Chemistry World."Ban sani ba ko zai yi tasiri wajen cire isassun karafa masu guba ba tare da cire wasu karafa masu amfani kamar ƙarfe ba."
Duk da haka, Jeannine bai damu ba cewa tsarin, idan aka yi amfani da shi a kan babban sikelin, zai hana tekuna daga muhimman ma'adanai.Kashi 3% na Calcium da 0.4% na magnesium ne kawai aka cire daga cikin ruwa a lokacin gwaje-gwajen, kuma ya ce baƙin ƙarfe da ke cikin teku yana da girma sosai don kada ya yi tasiri sosai.
Musamman ma, Jeannin ya ba da shawarar cewa za a iya sanya irin wannan tsarin a wuraren da ke da yawan ruwan nickel, kamar tashar jiragen ruwa na Nouméa, don rage adadin da ke ƙarewa a cikin teku.Yana buƙatar ƙaramin kulawa kuma ana iya haɗa shi da hanyoyin samar da makamashi mai sabuntawa kamar fafukan hasken rana.Ana iya dawo da nickel da sauran gurɓataccen gurɓataccen abu da ke cikin ma'auni kuma a sake yin fa'ida.
Jeannin ya ce shi da abokan aikinsa suna aiki tare da kamfanoni a Faransa da New Caledonia don haɓaka aikin gwaji don taimakawa wajen sanin ko za a iya fitar da tsarin ta hanyar kasuwanci.
Kwayoyin da ba su da tsada suna ba da irin wannan aikin ga tsadar da ake da sukarfemasu kara kuzari, amma yana fuskantar matsaloli masu tsanani game da kwanciyar hankalinsa.
Kyautar dala miliyan 210 daga ɗan kasuwa na Moderna kuma mai saka hannun jari Tim Springer don tallafawa bincike mai gudana
© Royal Society of Chemistry document.write(sabuwar Kwanan wata().getFullYear());Lambar rajistar sadaka: 207890