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![Page 1: Selective uptake of caesium by mordenite enclosing AMP … · 2012-05-24 · [mmol/g] 0.22 0.010 0.24 0.008 0.210.021 0.009 Breakthrough and elution properties of Cs + through AMP-M1](https://reader033.pdfslide.us/reader033/viewer/2022050204/5f57cdb97053e82022580fd5/html5/thumbnails/1.jpg)
SELECTIVE UPTAKE OF CAESIUM BY MORDENITE ENCLOSING AMP MICROCAPSULES
ACTINIDE AND FISSION PRODUCT PARTITIONING AND TRANSMUTATION, ISBN 978-92-64-99174-3, © OECD 2012 1
Selective uptake of caesium by mordenite enclosing AMP microcapsules
Abstract
![Page 2: Selective uptake of caesium by mordenite enclosing AMP … · 2012-05-24 · [mmol/g] 0.22 0.010 0.24 0.008 0.210.021 0.009 Breakthrough and elution properties of Cs + through AMP-M1](https://reader033.pdfslide.us/reader033/viewer/2022050204/5f57cdb97053e82022580fd5/html5/thumbnails/2.jpg)
SELECTIVE UPTAKE OF CAESIUM BY MORDENITE ENCLOSING AMP MICROCAPSULES
2 ACTINIDE AND FISSION PRODUCT PARTITIONING AND TRANSMUTATION, ISBN 978-92-64-99174-3, © OECD 2012
Introduction
Figure 1: Schematic diagram of AMP-M composites
CaCa Ca Ca CaCaCaCaCa CaCa CaCa CaCa
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AMP
Macropores of mordeniteCs+Cs+
Calcium alginate gel polymer
CaCa Ca Ca CaCaCaCaCa CaCa CaCa CaCa
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Experimental
Materials and preparation procedure of AMP-M composites
![Page 3: Selective uptake of caesium by mordenite enclosing AMP … · 2012-05-24 · [mmol/g] 0.22 0.010 0.24 0.008 0.210.021 0.009 Breakthrough and elution properties of Cs + through AMP-M1](https://reader033.pdfslide.us/reader033/viewer/2022050204/5f57cdb97053e82022580fd5/html5/thumbnails/3.jpg)
SELECTIVE UPTAKE OF CAESIUM BY MORDENITE ENCLOSING AMP MICROCAPSULES
ACTINIDE AND FISSION PRODUCT PARTITIONING AND TRANSMUTATION, ISBN 978-92-64-99174-3, © OECD 2012 3
Surface morphology and structure of AMP-M composites
Determination of distribution coefficient
Column test
Results and discussion
Surface morphology and structure of AMP-M composites
![Page 4: Selective uptake of caesium by mordenite enclosing AMP … · 2012-05-24 · [mmol/g] 0.22 0.010 0.24 0.008 0.210.021 0.009 Breakthrough and elution properties of Cs + through AMP-M1](https://reader033.pdfslide.us/reader033/viewer/2022050204/5f57cdb97053e82022580fd5/html5/thumbnails/4.jpg)
SELECTIVE UPTAKE OF CAESIUM BY MORDENITE ENCLOSING AMP MICROCAPSULES
4 ACTINIDE AND FISSION PRODUCT PARTITIONING AND TRANSMUTATION, ISBN 978-92-64-99174-3, © OECD 2012
Figure 2: Apparatus for column experiments
Tubing pump
FeedWater
Thermo-
controller
Circulation pump
P
P
Column
Fraction Collector
Figure 3: SEM images of AMP-M1
(a) AMP-M1 (b) Magnification image
Figure 4: Mapping of Cs, Mo and P in AMP-M3
500 m 5500 mm
![Page 5: Selective uptake of caesium by mordenite enclosing AMP … · 2012-05-24 · [mmol/g] 0.22 0.010 0.24 0.008 0.210.021 0.009 Breakthrough and elution properties of Cs + through AMP-M1](https://reader033.pdfslide.us/reader033/viewer/2022050204/5f57cdb97053e82022580fd5/html5/thumbnails/5.jpg)
SELECTIVE UPTAKE OF CAESIUM BY MORDENITE ENCLOSING AMP MICROCAPSULES
ACTINIDE AND FISSION PRODUCT PARTITIONING AND TRANSMUTATION, ISBN 978-92-64-99174-3, © OECD 2012 5
Figure 5: XRD pattern of adsorbents
:AMP:AMP:AMP
Mordenite
AMP-M3
AMP-M2
AMP-M1
Inte
nsi
ty [
a.u
.]
2 [deg]
Table 1: Lattice constants (Å) of AMP crystals in AMP-M
AMP-M1 11.6210.005
AMP-M2 11.6300.006
AMP-M3 11.6360.013
Original fine crystals of AMP 11.6550.000
Uptake rate of Cs+ for AMP-M composites
Figure 6: Uptake rate of Cs+
V/m = 100 cm3/g; 251C
Mordenite
AMP-M3
AMP-M2
AMP-M1Mordenite
AMP-M3
AMP-M2
AMP-M1
Up
tak
e [%
]
Time [h]
![Page 6: Selective uptake of caesium by mordenite enclosing AMP … · 2012-05-24 · [mmol/g] 0.22 0.010 0.24 0.008 0.210.021 0.009 Breakthrough and elution properties of Cs + through AMP-M1](https://reader033.pdfslide.us/reader033/viewer/2022050204/5f57cdb97053e82022580fd5/html5/thumbnails/6.jpg)
SELECTIVE UPTAKE OF CAESIUM BY MORDENITE ENCLOSING AMP MICROCAPSULES
6 ACTINIDE AND FISSION PRODUCT PARTITIONING AND TRANSMUTATION, ISBN 978-92-64-99174-3, © OECD 2012
Effect of HNO3 concentration on Kd of Cs+ for AMP-M composites
−
Figure 7: Effects of HNO3 concentration on Kd,Cs
V/m = 100 cm3/g; [Cs
+]: 10 ppm; 251C
Mordenite
AMP-M3
AMP-M2
AMP-M1
Mordenite
AMP-M3
AMP-M2
AMP-M1
HNO3 [M]
Kd
[cm
3g
-1]
Figure 8: Kd of different metal ions for AMP-M1
V/m = 100 cm3/g; [M
n+]: 10 ppm; 251C
Cs
Rb
Ag
Cs
Rb
Ag
※AMP-M1
HNO3 [M]
Kd
[cm
3g
-1]
![Page 7: Selective uptake of caesium by mordenite enclosing AMP … · 2012-05-24 · [mmol/g] 0.22 0.010 0.24 0.008 0.210.021 0.009 Breakthrough and elution properties of Cs + through AMP-M1](https://reader033.pdfslide.us/reader033/viewer/2022050204/5f57cdb97053e82022580fd5/html5/thumbnails/7.jpg)
SELECTIVE UPTAKE OF CAESIUM BY MORDENITE ENCLOSING AMP MICROCAPSULES
ACTINIDE AND FISSION PRODUCT PARTITIONING AND TRANSMUTATION, ISBN 978-92-64-99174-3, © OECD 2012 7
Uptake isotherm of Cs+ for AMP-M composites
Figure 9: Uptake isotherm of Cs+ on AMP-M1
V/m = 100 cm3/g; 251C
Qeq
[mm
ol/
g]
Ceq [mmol/dm3]
AMP-M1AMP-M1
Figure 10: Langmuir-plot
Ceq [mmol/dm3]
Ceq
/Qeq
[g/d
m3]
AMP-M1AMP-M1
![Page 8: Selective uptake of caesium by mordenite enclosing AMP … · 2012-05-24 · [mmol/g] 0.22 0.010 0.24 0.008 0.210.021 0.009 Breakthrough and elution properties of Cs + through AMP-M1](https://reader033.pdfslide.us/reader033/viewer/2022050204/5f57cdb97053e82022580fd5/html5/thumbnails/8.jpg)
SELECTIVE UPTAKE OF CAESIUM BY MORDENITE ENCLOSING AMP MICROCAPSULES
8 ACTINIDE AND FISSION PRODUCT PARTITIONING AND TRANSMUTATION, ISBN 978-92-64-99174-3, © OECD 2012
Table 2: Qmax values of adsorbents
Adsorbent Mordenite AMP-M1 AMP-M2 AMP-M3
Qmax [mmol/g] 0.220.010 0.240.008 0.210.021 0.210.009
Breakthrough and elution properties of Cs+ through AMP-M1 column
Figure 11: Breakthrough and elution curves of Cs+ for AMP-M1 column
Column: 0.5 cm 20 cm, AMP-M1: 2 g; flow rate: 0.22 cm3/min; 251C
(a) Feed solution [Cs+] = 1 000 ppm; (b) loaded amount of Cs
+: 0.34 mmol; eluent: 5 M NH4NO3
(a) Breakthrough curve (b) Elution curve
C/C
0
Effluent volume [cm3]
C/C
0
Effluent volume [cm3]
Elu
ted
[%
]
Elution volume [cm3]
Conclusions
−
![Page 9: Selective uptake of caesium by mordenite enclosing AMP … · 2012-05-24 · [mmol/g] 0.22 0.010 0.24 0.008 0.210.021 0.009 Breakthrough and elution properties of Cs + through AMP-M1](https://reader033.pdfslide.us/reader033/viewer/2022050204/5f57cdb97053e82022580fd5/html5/thumbnails/9.jpg)
SELECTIVE UPTAKE OF CAESIUM BY MORDENITE ENCLOSING AMP MICROCAPSULES
ACTINIDE AND FISSION PRODUCT PARTITIONING AND TRANSMUTATION, ISBN 978-92-64-99174-3, © OECD 2012 9
References
![Figure XI. Surface ground deposition of caesium-137 ... · Figure XI. Surface ground deposition of caesium-137 released in Europe after the Chernobyl accident [D13]](https://img.pdfslide.us/doc/110x75/5f5d259cd909477e3049d683/figure-xi-surface-ground-deposition-of-caesium-137-figure-xi-surface-ground.jpg)
![Figure XI. Surface ground deposition of caesium …Figure XI. Surface ground deposition of caesium-137 released in Europe after the Chernobyl accident [D13]. Created Date 2/25/1999](https://img.pdfslide.us/doc/110x75/5eb61509c187a1087f6b71d9/figure-xi-surface-ground-deposition-of-caesium-figure-xi-surface-ground-deposition.jpg)
