title: Cesium Speciation in Dust from Municipal Solid Waste and Sewage Sludge Incineration by Synchrotron Radiation Micro-X-ray Analysis.
abstract: The chemical behavior of Cs in waste incineration processes is important to consider when disposing of radionuclide-contaminated waste from the Fukushima Daiichi nuclear power plant accident in Japan. To determine the speciation of Cs, we attempted the direct speciation of trace amounts of stable Cs in the dust from municipal solid waste incineration (MSWI) and sewage sludge incineration (SSI) by micro-X-ray fluorescence (μ-XRF) and micro-X-ray absorption fine structure (μ-XAFS) at the SPring-8 facility. The μ-XRF results revealed that locally produced Cs was present in MSWI and SSI dust within the cluster size range of 2-10 μm. The μ-XAFS analysis confirmed that the speciation of Cs in MSWI dust was similar to that of CsCl, while in SSI dusts it was similar to pollucite. The solubility of Cs was considered to be influenced by the exact Cs species present in incineration residue.
authors.affiliation: Department of Environmental Engineering, Graduate School of Engineering, Kyoto University , Cluster C, Kyoto Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8540, Japan.
authors.forename: Kenji
authors.initials: K
authors.lastname: Shiota
authors.affiliation: Department of Environmental Engineering, Graduate School of Engineering, Kyoto University , Cluster C, Kyoto Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8540, Japan.|Graduate School of Global Environmental Studies, Kyoto University , Cluster C, Kyoto Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8540, Japan.
authors.forename: Masaki
authors.initials: M
authors.lastname: Takaoka
authors.affiliation: Department of Environmental Engineering, Graduate School of Engineering, Kyoto University , Cluster C, Kyoto Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8540, Japan.|Graduate School of Global Environmental Studies, Kyoto University , Cluster C, Kyoto Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8540, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Fujimori
authors.affiliation: Department of Environmental Engineering, Graduate School of Engineering, Kyoto University , Cluster C, Kyoto Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8540, Japan.|Graduate School of Global Environmental Studies, Kyoto University , Cluster C, Kyoto Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8540, Japan.
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Oshita
authors.affiliation: Japan Synchrotron Radiation Research Institute, SPring-8 , 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan.
authors.forename: Yasuko
authors.initials: Y
authors.lastname: Terada
mesh_terms: D002586:Cesium / Q000032:analysis* / Q000737:chemistry*; D004391:Dust / Q000032:analysis*; D012722:Sewage / Q000737:chemistry*; D062611:Solid Waste / Q000032:analysis*; D017356:Synchrotrons; D014965:X-Rays
chemical_list: D004391:Dust; D012722:Sewage; D062611:Solid Waste; D002586:Cesium