TY - JOUR
T1 - GEOCHEMICAL FORM ANALYSIS OF TITANIUM IN CHELATE-TREATED MUNICIPAL SOLID WASTE INCINERATION FLY ASH PARTICLES EMPLOYING CORRELATION ANALYSIS OF ELEMENTAL DISTRIBUTION LINE PROFILES
AU - Kitamura, Hiroki
AU - Dahlan, Astryd viandila
AU - Tian, Yu
AU - Shimaoka, Takayuki
AU - Yamamoto, Takashi
AU - Takahashi, Fumitake
PY - 2017/1/1
Y1 - 2017/1/1
N2 - The purpose of this study was to develop a method for estimating the chemical forms of heavy metals contained in chelated general waste incineration fly ash by correlation analysis of elemental distribution by SEM-EDX. Morphological analysis was also attempted. By subjecting incinerated fly ash to elution tests with different extraction capacities, it became possible to observe heavy metals present on the insoluble or poorly soluble internal matrix. As a result of Ti chemical morphology analysis by correlation analysis, crystalline Ti in the incineration fly ash was assumed to be either rutile (TiO 2 ) or perovskite (CaTiO 3 ) and mixed in the aluminosilicate matrix. On the other hand, as amorphous Ti, a form of bonding with aluminosilicic acid was also speculated. The method of this study has the advantage of being able to estimate the chemical forms of heavy metals, which are difficult to identify by XRD analysis, at the particle level.
AB - The purpose of this study was to develop a method for estimating the chemical forms of heavy metals contained in chelated general waste incineration fly ash by correlation analysis of elemental distribution by SEM-EDX. Morphological analysis was also attempted. By subjecting incinerated fly ash to elution tests with different extraction capacities, it became possible to observe heavy metals present on the insoluble or poorly soluble internal matrix. As a result of Ti chemical morphology analysis by correlation analysis, crystalline Ti in the incineration fly ash was assumed to be either rutile (TiO 2 ) or perovskite (CaTiO 3 ) and mixed in the aluminosilicate matrix. On the other hand, as amorphous Ti, a form of bonding with aluminosilicic acid was also speculated. The method of this study has the advantage of being able to estimate the chemical forms of heavy metals, which are difficult to identify by XRD analysis, at the particle level.
U2 - 10.2208/jscejer.73.III_287
DO - 10.2208/jscejer.73.III_287
M3 - Article
SN - 2185-6648
VL - 73
SP - III_287-III_295
JO - Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)
JF - Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)
IS - 7
ER -
