Y Type Liquid Selter Kusanthula kwa Tinthu Zomwe Muli ndi Alpha Emitters mu Madzi Akufa mu Reactor Annular Chamber of Unit 2 ya Fukushima Daiichi Nuclear Power Plant

Zikomo chifukwa chaulendo wanu https://likvchina.goodao.net/, mukugwiritsa ntchito msakatuli wothandizira CSS co., LTD. Kuti mugwiritse ntchito bwino, tikupangira kuti mugwiritse ntchito msakatuli watsopano (kapena zimitsani mawonekedwe ofananirako mu Internet Explorer). Pakadali pano, kuti tithandizire kupitilizabe, tidzawonetsa tsambalo popanda masitayilo ndi JavaScript. Tinthu tating'ono ta alpha (α) nuclides tapezeka m'madontho amadzi ozungulira a reactor no. 2 ya Fukushima Daiichi Nuclear Power Plant (FDiNPS). Uranium (U), chigawo chachikulu cha mafuta a nyukiliya, adawunikidwa ndi makina oonera ma microscope (SEM). Zina za α -nuclides (plutonium [Pu], americium [Am] ndi Curium [Cm]) zinadziwika ndi α locus, ndipo morphology ya α -nuclide particles inafufuzidwa ndi SEM energy spectrum analysis (EDX). Tinthu tating'ono ta uranium kuyambira ku submicron kupita ku ma microns angapo adapezeka posanthula ma electron microscopy. Tinthu tating'onoting'ono tomwe timakhala ndi zirconium (Zr) ndi zinthu zina zomwe zimapanga zopangira mafuta ndi zida zamapangidwe. Chiŵerengero cha 235U/238U cha isotopu mugawo lolimba (kuphatikizapo tinthu tating'ono ta U) chimagwirizana ndi mafuta a nyukiliya omwe amapezeka mu reactor no. 2. Izi zikuwonetsa kuti uranium wamafuta omwewo amakhala bwino. Tinthu tating'onoting'ono tomwe timakhala ndi ma nuclides ozindikirika ndi kusanthula kwa alpha trajectory timayambira pa makumi mpaka mazana a ma microns. Kusanthula kwazithunzi za EDX kukuwonetsa kuti tinthu tating'onoting'ono timakhala ndi chitsulo. Pu, Am ndi Cm ndi adsorbed pa Fe particles chifukwa chochepa cha α -nuclide. Kafukufukuyu akuwonetsa kusiyana kwa mitundu yayikulu ya U ndi ma alpha nuclides mu ma hydroponic deposits a annular chamber of FDiNPS 2 reactor. Tepco's Fukushima Daiichi nuclear power plant (FDiNPS) idawonongeka kwambiri ndi chivomezi cha March 11, 2011 ndi tsunami yomwe inatsatira. Panthawiyo, mayunitsi 1-3 mwa ma reactors asanu ndi limodzi anali kugwira ntchito, ndipo mafuta a nyukiliya mu magawo 1-3 adawonongeka. Madzi a m'nyanja ndi madzi abwino amabayidwa kuti achotse kutentha kwa nyukiliya. Madzi amakhalabe m'chipinda chapansi pa nyumbayi, pomwe zida zamafuta a nyukiliya zimasungunuka, ndikupanga dziwe lamadzi la radioactive kwambiri. Madzi akufa amakhala ndi ma radionuclides monga zinthu za fission ndi ma actinides amafuta a nyukiliya. Khazikitsani njira yochizira mankhwala kuti muchotse ma radionuclides, kukhazikitsa uinjiniya wozungulira, ndikubwezeretsanso madzi ozizira kuti agwiritsidwenso ntchito. Kuyambira pamenepo, kuchuluka kwa madzi oyima kwachepa pang'onopang'ono, koma tinthu tating'ono tomwe timakhala ndi ma alpha (α) ma radionuclides ochulukirapo apezeka mobisa m'nyumba za reactor. Ma alpha nuclides (102-105 Bq/L) m'madzi oyimilira, kuphatikiza matope, amakhala okwera kuposa m'madzi ozizira m'nyumba zakunsi kwa mtsinje. Ma radionuclides otulutsa, monga uranium (U) ndi plutonium (Pu), amatha kuyambitsa kukhudzidwa kwambiri mkati akalowa m'thupi. α -nuclide ndiye nuclide wamkulu wa zinthu za fission ndipo ayenera kuyang'aniridwa mosamalitsa poyerekeza ndi cesium (Cs) -137 ndi strontium (Sr) -90. Njira zochotsera bwino ma alpha nuclides m'madzi oyimirira ziyenera kupangidwa. Kuti izi zitheke, madzi osasunthika adasonkhanitsidwa m'chipinda cha annular m'chipinda chapansi pa nyumba ya riyakitala ya Unit 2, ndipo matope omwe ali m'madzi osasunthika adawunikiridwa ndi kusanthula kwa radiochemical. Zitsanzo zomwe zili ndi zinyalala zosakanizika zochokera m'madzi oyimilira a nyumbayo zimatsimikizira kukhalapo kwa ma alpha radionuclides. Kuti mupitilize kuthira madzi osasunthika mkati mwa nyumba zopangira nyukiliya mtsogolomo, ndikofunikira kumvetsetsa mitundu yosiyanasiyana ya zotulutsa za alpha, makamaka zomwe zimakhala ndi tinthu tolimba m'madzi osasunthika. Mu phunziro ili, u ma radioactive particles omwe amagwirizanitsidwa ndi Cs particles (CsMPs) adapezeka kunja kwa malo a FDiNPS, ndipo mawonekedwe awo a thupi ndi mankhwala ndi morphology adafufuzidwa 3, 4, 5, 6, 7, 8. Abe et al. adasonkhanitsa ma CsMP opangidwa ndi FDiNPS kuchokera mumlengalenga ndikusanthula pogwiritsa ntchito ma X-ray olumikizana kuti azindikire U mu CsMPs. Ochiai et al. adapeza mazana a nanometers a U particles mu CsMP ndi kusanthula kwa SEM-EDX. Mawonekedwe a diffraction a UO2 pa magnetite adawonedwa ndi ma microscope ma electron, ndipo zotsatira zake zidawonetsa mawonekedwe a UO2. Mofananamo, machitidwe a diffraction a UO2 ndi zirconia adapezedwa pamagulu osakanikirana a Zr ndi U mu CSMP. Izi zikuwonetsa kuti U ilipo mu CsMP mu mawonekedwe a UO2 ndi U-Zr nanocrystals. Kurihara et al. 8 idasanthula kuchuluka kwa isotopu ya 235U ndi 238U mu CsMP ndi nanoscale sub-ion mass spectrometry ndipo idapeza kuti panali U mu kapangidwe ka mafuta a reactor no. 2 mu CsMP. Kusanthula kwa nthaka 9, 10, 11, 12, 13, particles airborne ndi CsMPs7 adanenanso za kutulutsidwa kwa mafuta opangidwa ndi polyurethanes m'chilengedwe. The Buddha