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Sediment erosion revealed by study of Cs isotopes derived from the Fukushima Dai-ichi nuclear power plant accident
Fukushima Dai-ichi nuclear power plant accident Cs isotopes erosion Vietnam mega-delta
2017/4/11
Deltaic sediments of the Mekong River delta sampled from a tidal beach in Vietnam during the wet season (late
October 2011) showed strong 137Cs and 134Cs activities reflecting radionuclides released ...
Isotopic determination of U, Pu and Cs in environmental waters following the Fukushima Daiichi Nuclear Power Plant accident
uranium plutonium caesium seawater riverine water Fukushima
2017/4/11
Concentrations of the radionuclides, U, Pu, and Cs were measured in water samples (10–20 L) to study analyte dispersion
and migration following the Fukushima Daiichi Nuclear Power Plant (FDNPP) accid...
Study on Competitive Sorption Capacity of Sr2+/Cs+ in Zeolite and Palygorskite
Adsorptive Capacity Cs+ Palygorskite Sr2+ Zeolite
2011/11/14
Competitive sorption capacity of equal concentration of Cs+ and Sr2+ in zeolite and palygorskite were studied by the intermittence method. zeolite and palygorskite of adsorbed Cs+ and Sr2+ were analys...
Infrared Reflectance Study of Thermally Treated Li- and Cs-Montmorillonites
Cs-Montmorillonite Li-Montmorillonite Longitudinal-Optic (LO) Mode Migration Reflectivity Transverse-Optic (TO) Mode
2011/12/22
Abstract: The structure of Li- and Cs-montmorillonites was studied using infrared (IR) reflectance spectroscopy. The spectra of heat-treated clays between 80 and 220 °C were analyzed by Kramers-Kr&oum...
FT-IR/PAS AND SEM EDX STUDIES ON ALUMINOSILICATES MODIFIED BY CS(I), TH(IV) AND U(VI)
industrial minerals radioactive waste disposal
2011/11/7
Clays and zeolites are some of the most important industrial minerals. They have practical applications in geology, agriculture, construction, engineering, process industries, and environment. This ar...
碱矿渣—粘土复合胶凝材料固化Sr、Cs的机理与性能研究
碱矿渣-粘土复合凝胶材料 Sr Cs 固化 机理 性能
2011/11/2
放射性核素Sr、Cs的固化是核技术应用的关键环节之一。碱矿渣-粘土复合胶凝材料(AASCM)是具有低钙硅比(C/S)、富铝、富钠组成特征并集成了碱矿渣水泥的高强度、低孔隙率、较好抗侵蚀性与改性凹凸棒石粘土(M-ATT)、沸石(ZEO)良好吸附性能的一种新型放射性核素Sr、Cs的固化基材。研究其固化Sr、Cs的机理和性能,旨在为该材料的组成设计及工程应用提供理论依据和积累实验数据。 应用静态吸附法,...
The Cs/K Exchange in Muscovite Interlayers: An Ab Initio Treatment
Ab Initio Cation Exchange Cesium Clay Defects Density Functional Theory Exchange Energy Isomorphic Substitution Mica Muscovite
2011/12/5
Abstract: Plane-wave pseudopotential total energy calculations have been applied to investigate the structure and energetics of the Cs/K exchange into interlayer sites in muscovite mica. Novel muscovi...
"Cs-tetra-ferri-annite:" High-pressure and high-temperature behavior of a potential nuclear waste disposal phase
High pressure High temperature geometric
2012/3/30
Structuredeformationsinducedbypressureandtemperatureinsynthetic!fi!fiCs-tetra-ferr2 3 3annite!fl!fl1M[
(Fe Fe )(Si Fe Al )O (OH) ],spacegroup C2/m, werean-1.78 6.15 0.05 20 45.93 0.07 1.80
alyzedtoi...
Chemistry and genetic implications of tourmaline and Li-F-Cs micas from the Valdeflores area (Cáceres, Spain)
Valdeflores area tourmaline-rich rocks Li-F-Cs
2012/3/30
Pervasivemetasomatismthatinvolvedtheformationoftourmaline-richrocksandin?ux
ofLi,F,andCsintoOrdovicianpsammo-peliticmetasedimentsoccurredintheValde?ores
area(Ca!ceres,Spain).NumerousLi-andSn-bearing...
放射性Sr、Cs 及锕系元素在膨润土中扩散系数的研究
膨润土 扩散系数 缓冲 回填材料
2011/10/18
对采用我国西北红泉膨润土作为高放废物处置的缓冲、回填材料进行了研究, 测定了该膨润土的物理和化学性能, 矿物组成, 裂变产物Sr、Cs 及锕系元素Am、Pu 的扩散系数。“背向背”法测得混合型膨润土的扩散系数分别为D Sr= 2. 45×10- 11m2·s- 1、D Cs= 1. 52×10- 12m 2·s- 1、DAm =2. 50×10- 14m 2·s- 1和D Pu= 2. 54×10...
Na, K, Rb and Cs exchange in heulandite single crystals: Diffusion kinetics
Na K Rb Cs exchange heulandite single Diffusion kinetics
2012/4/5
Diffusion-exchangekineticsweredeterminedattemperaturesbetween320and425KforNa
insinglecrystalsofnaturalheulandite,Na Ca K (Al Si O )!/n O,and
0.96 3.54 0.09 8.62 27.51 72 2K,Rb ,andCs forNa inNa-exch...
Adsorption of 137Cs on Montmorillonite and Illite: Effect of Charge Compensating Cation, Ionic Strength, Concentration of Cs, K and Fulvic Acid
Cesium Illite Ion Exchange Montmorillonite Radiocesium Selectivity Soil
2011/12/9
Abstract: A thorough understanding of the capacity of clay minerals to adsorb radiocesium is essential in order to predict the fate of this pollutant in the environment and to interpret routine measur...
The crystal structure of nanpingite-2M2, the CS end-member of muscovite
crystal structure nanpingite-2M2 CS end-member of muscovite
2012/4/5
Nanpingite, ideally CsA12(AlSi3)OIO(OH)2,is a Csend-member dioctahedral mica,crys-tallizing in C21c,witha =9.076(3), b= 5.226(2), c =21.41(5) A,and (3
=99.48(6)°. The crystal structure of type nanpin...
Mechanism of Adsorption and Desorption of Water Vapor by Homoionic Montmorillonites: 2. The Li+, Na+, K+, Rb+, and Cs+-Exchanged Forms
Adsorption Desorption Exchangeable cations Immersion microcalorimetry Montmorillonite Relative humidity Surface area XRD
2011/12/28
Methods previously used to distinguish between water adsorbed on external surfaces and in the interlamellar space of Na-montmorillonite during adsorption and desorption of water vapor have been extend...
Phillipsite in Cs Decontamination and Immobilization
Cation exchange Cesium Cs-feldspar Nuclear waste disposal Phillipsite Pollucite Thermal treatment Zeolite
2012/1/13
The Cs selectivity of several natural zeolitic tuffs and synthetic zeolites was measured. Phillipsite-rich tuffs from California and Nevada exchanged 13.5 and 23.7%, respectively, of the Cs present in...