Nau'in Tattarar Tacewar Ruwa na Y Nau'in Nazari Masu Dauke da Alfa Emitters a Matattu Ruwa a cikin Reactor Annular Chamber of Unit 2 na Fukushima Daiichi Makamin Nukiliya

Na gode da ziyararku https://likvchina.goodo.net/, kuna amfani da tallafin nau'in burauza don CSS co., LTD. Don ƙwarewa mafi kyau, muna ba da shawarar ku yi amfani da sabon mai bincike (ko kashe yanayin dacewa a cikin Internet Explorer). A halin yanzu, don tabbatar da ci gaba da tallafi, za mu nuna rukunin yanar gizon ba tare da salo da JavaScript ba. An sami barbashi masu ɗauke da alpha (α) nuclides a cikin sediments a cikin madauwari ruwa na reactor no. 2 na Fukushima Daiichi Nuclear Power Plant (FDiNPS). Uranium (U), babban abin da ke cikin makamashin nukiliya, an yi nazarinsa ta hanyar duban microscope na lantarki (SEM). Sauran α-nuclides (plutonium [Pu], americium [Am] da Curium [Cm]) an gano su ta hanyar α locus, kuma an yi nazarin ilimin halittar kwayoyin halitta na α-nuclide ta hanyar SEM energy spectrum analysis (EDX). An sami wasu barbashi na uranium da yawa waɗanda suka fito daga submicron zuwa microns da yawa ta hanyar duban maƙasudin lantarki. Waɗannan barbashi sun ƙunshi zirconium (Zr) da sauran abubuwan da suka haɗa da ƙulla mai da kayan gini. Matsakaicin isotope na 235U/238U a cikin ƙaƙƙarfan juzu'i (ciki har da ƙwayoyin U) ya yi daidai da makamashin nukiliya da aka samu a cikin reactor no. 2. Wannan yana nuna cewa uranium na man fetur iri ɗaya ya zama mafi kyau. Barbashi masu ƙunshe da nuclides da aka gano ta hanyar nazarin yanayin alpha suna da girma daga dubun zuwa ɗaruruwan microns. EDX spectroscopic bincike ya nuna cewa waɗannan barbashi galibi sun ƙunshi ƙarfe. Pu, Am da Cm ana tallata su akan ɓangarorin Fe saboda ƙaramin adadin α-nuclide. Wannan binciken yana bayyana bambance-bambance a cikin manyan nau'ikan U da sauran alpha nuclides a cikin ma'ajin hydroponic na ɗakin shekara na FDiNPS 2 reactor. Tashar makamashin nukiliya ta Tepco ta Fukushima Daiichi (FDiNPS) ta yi mummunar barna sakamakon girgizar kasa da ta afku a ranar 11 ga Maris, 2011. A lokacin, raka'a 1-3 daga cikin reactor shida suna aiki, kuma man nukiliya a raka'a 1-3 ya lalace. Ana allurar ruwan teku da ruwa mai daɗi don cire ruɓar zafi daga man nukiliya. Ruwan ya kasance a cikin ginshiki na ginin, inda abubuwan da ke cikin makamashin nukiliya ke narke, wanda ke haifar da wani tafki na ruwa mai amfani da rediyo. Matattu ruwa ya ƙunshi radionuclides kamar fission kayayyakin da makamashin nukiliya actinides. Ƙirƙiri tsarin kula da sinadarai don cire radionuclides, kafa tsarin aikin injiniya na wurare dabam dabam, da dawo da ruwan sanyaya don sake amfani. Tun daga wannan lokacin, adadin ruwan da ke tsaye ya ragu a hankali, amma an sami ɓangarorin da ke ɗauke da babban adadin alpha (α) radionuclides a ƙarƙashin ƙasa a cikin gine-ginen reactor. Abubuwan da aka tattara na alpha nuclides (102-105 Bq/L) a cikin ruwa na tsaye, gami da laka, sun fi sama da ruwan sanyaya a cikin gine-gine na ƙasa. Radiated radionuclides, irin su uranium (U) da plutonium (Pu), na iya haifar da mummunan bayyanar ciki lokacin da suka shiga jiki. α -nuclide shine babban nuclide na samfuran fission kuma yakamata a sarrafa shi sosai idan aka kwatanta da cesium (Cs) -137 da strontium (Sr) -90. Dole ne a samar da dabaru don ingantaccen cire alpha nuclides daga ruwa mai tsayi. Don haka, an tattara ruwa maras kyau a cikin ɗaki na shekara a cikin ginshiƙi na ginin reactor na Raka'a 2, kuma an yi nazarin lakaran da ke cikin ruwa maras nauyi ta hanyar nazarin kimiyyar rediyo. Samfuran dake ƙunshe da gauraye ɓangarorin sludge daga tsayayyen ruwan ginin reactor sun tabbatar da kasancewar alpha radionuclides. Domin a ci gaba da kula da tsaftataccen ruwa mai zurfi a cikin gine-ginen reactor a nan gaba, ana buƙatar kyakkyawar fahimtar nau'ikan iskar alpha daban-daban, musamman waɗanda ke ɗauke da daskararru a cikin ruwa maras nauyi. A cikin wannan binciken, an gano ƙwayoyin rediyoaktif da ke da alaƙa da ƙwayoyin Cs (CsMPs) a wajen rukunin yanar gizon FDiNPS, kuma an yi nazarin abubuwan da ke tattare da su na zahiri da na sinadarai da ilimin halittar jiki 3, 4, 5, 6, 7, 8. Abe et al. An tattara CsMPs da FDiNPS ke fitarwa daga sararin samaniya kuma yayi nazarin su ta amfani da hasken X-ray na aiki tare don gano U a cikin CsMPs. Ochiai et al. gano ɗaruruwan nanometers na ƙwayoyin U a cikin CsMP ta binciken SEM-EDX. An lura da tsarin rarrabuwar kawuna na UO2 akan magnetite ta microscope na watsawa, kuma sakamakon ya nuna abun da ke cikin UO2. Hakazalika, an sami tsarin rarrabuwar kawuna na UO2 da zirconia don gauraye barbashi na Zr da U a cikin CSMP. Wannan yana nuna cewa U yana cikin CsMP ta hanyar UO2 da U-Zr nanocrystals. Kurihara et al. 8 yayi nazarin rabon isotope na 235U da 238U a cikin CsMP ta nanoscale sub-ion mass spectrometry kuma ya gano cewa akwai U a cikin abun da ke cikin mai na reactor no. 2 a cikin CsMP. Binciken ƙasa 9, 10, 11, 12, 13, iska da kuma CsMPs7 sun ba da rahoton sakin man fetur da aka samu polyurethane a cikin yanayi. Buda