Natural zeolite as a replacement for resin in the cation exchange process of cesium on post-irradiated nuclear fuel

Aslina Br. Ginting; Amini Siti; Noviarty; Yanlinastuti; Arif Nugroho; Boybul

Otwarty dostęp

Natural zeolite as a replacement for resin in the cation exchange process of cesium on post-irradiated nuclear fuel

oraz

| 06 mar 2021

Tom 66 (2021): Zeszyt 1 (March 2021)

O artykule

Poprzedni artykuł

Następny artykuł

Zacytuj

Udostępnij

Article Category: Original Paper

Data publikacji: 06 mar 2021

Zakres stron: 11 - 19

Otrzymano: 04 maj 2020

Przyjęty: 02 paź 2020

DOI: https://doi.org/10.2478/nuka-2021-0002

Słowa kluczowe
Zeolites, Resin, Cation exchange, Cesium, Nuclear fuel

© 2021 Aslina Br. Ginting et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

XRD peak pattern of the natural zeolite dried at 200°C: (a) Bayah, (b) Lampung, and (c) Tasikmalaya.

Adsorption of zeolites from Bayah, Lampung, and Tasikmalaya.

Relationship between the fraction values of zeolite ions exchanged at time t for a temperature of 30°C.

Relationship between the fraction values of zeolite ions exchanged at time t for a temperature of 50°C.

The selectivity test results of NH4-zeolite with Cs, Sr, Ba, and Ce ions.

The spectrum isotope of 134Cs and 137Cs.

Weight fractions (Ft/F~ at 50°C) of Cs ion at various stirring times

Time (h)	Weight fractions of Cs ions at 50°C

	Bayah	Lampung	Tasikmalaya
0	0.00	0.00	0.00
1	0.98	0.99	0.97
2	0.95	0.97	0.94
3	0.96	0.97	0.95
4	0.96	0.97	0.96
5	0.96	0.97	0.97
24	1.00	1.00	1.00

Analysis of cation exchange capacity (CEC)

Origin of zeolite	CEC (mEq/g)	CEC average (mEq/g)	SD (mEq/g)	RSD (%)
Bayah	1.460
	1.438	1.427	0.040	2.79
	1.383
Lampung	1.454
	1.454	1.448	0.010	0.71
	1.436
Tasikmalaya	1.409
	1.404	1.404	0.005	0.36
	1.399

Recovery of 137Cs isotope in the fuel element plate of U3Si2/Al using resin Dowex

Sample code	Weight of sample in 150 mL (g solution)	Content of ¹³⁷Cs before given zeolite (mg)	Content of ¹³⁷Cs after given zeolite (mg)	Recovery (%)
Top	0.1554	0.0341	0.0334	98.0122
Middle	0.1542	0.0302	0.0297	98.4482
Bottom	0.1540	0.0284	0.0276	98.1428

Diffusion coefficient at 30°C and 50°C

Temperature (°C)	Diffusion coefficient (D_i) (m²/s)

	Bayah	Lampung	Tasikmalaya
30	2.30E-13	2.35E-13	2.06E-13
50	9.34E-14	9.62E-14	9.62E-14

Recovery of 137Cs isotope in the fuel element plate of U3Si2/Al using zeolite

Sample code	Weight of sample in 150 mL (g solution)	Content of ¹³⁷Cs before given zeolite (mg)	Content of ¹³⁷Cs after given zeolite (mg)	Recovery (%)
Top	0.1539	0.0287	0.0285	99.3031
Middle	0.1546	0.0343	0.0340	99.1253
Bottom	0.1557	0.0447	0.0443	99.1051

Surface area, pore size and adsorption of zeolites from Bayah, Lampung, and Tasikmalaya

Types of zeolites	Surface area (m²)	Pore size (Å)	Adsorption (ml/g)
Bayah	6.353	16.235	13.250
Lampung	10.048	16.065	24.500
Tasikmalaya	8.332	16.801	13.850
Standard	1.010	30.915	4.900

Optimization time of the 137Cs cation exchange process with NH4-zeolites

Stirring time (h)	Zeolites from Bayah (mEq/g)	Zeolites from Lampung (mEq/g)	Zeolites from Tasikmalaya (mEq/g)
0	0.00	0.00	0.00
1	1.46	1.57	1.41
2	1.40	1.45	1.40
3	1.38	1.44	1.40
4	1.35	1.46	1.39
5	1.34	1.45	1.38
24	1.34	1.44	1.38

Fission products and half-life of isotopes

Isotopes	Fission yield (%)	Half-life
¹³⁴Cs	6.80	2.10 years
¹³⁷Cs	6.20	30.17 years
⁹⁰Sr	5.93	29 years
¹⁴⁰Ba	6.36	12.8 days
¹⁴⁴Ce	4.50	285 days

Selectivity coefficient of zeolites from Lampung [21]

Cation exchange	Cs⁺	Sr²⁺	Ba²⁺	Ce⁺
NH₄-zeolite	1.44	1.22	1.22	1.10
K-zeolite	1.20	1.04	1.10	1.00
Na-zeolite	1.40	1.04	1.12	1.00

Results of leaching 137Cs-zeolite from Lampung

Heating temperature (°C)	Cs (mEq/10 ml)	Cs (mEq/g zeolite)	Fraction in Cs

			Leachates (%)	Zeolite (%)
25 (no heating)	0.221	0.0221	15.46	84.54
200	0.004	0.0004	0.27	99.73
500	0.001	0.0011	0.06	99.94
600	0.001	0.0011	0.06	99.94

Chemical composition of zeolites from Bayah, Lampung, and Tasikmalaya

Oxide elements	Zeolites from Bayah (% w/w)	Zeolites from Lampung (% w/w)	Zeolites from Tasikmalaya (% w/w)	Mordenite standard (% w/w)
SiO₂	4.350	68.070	62.520	78.580
Al₂O₃	14.20	16.520	13.760	17.330
CaO	3.720	2.270	3.130	0.920
Fe₂O₃	1.720	1.530	1.650	0.350
MgO	1.630	0.570	1.470	0.450
Na₂O	1.840	0.930	1.860	1.180
K₂O	2.860	2.280	2.010	0.860
P₂O	0.052	0.034	–	–
TiO₂	2.154	0.135	2.170	0.080
MnO	0.022	0.033	0.032	–

Weight fractions (Ft/F~ at 30°C) of Cs ion at various stirring times

Time (h)	Weight fractions of Cs ions at 30°C

	Bayah	Lampung	Tasikmalaya
0	0.00	0.00	0.00
1	1.09	1.09	0.99
2	1.01	1.04	0.99
3	1.00	1.03	0.98
4	1.01	1.01	0.99
5	1.00	1.01	0.98
24	1.00	1.00	1.00

eISSN:: 0029-5922
Język:: Angielski

Częstotliwość wydawania:: 4 razy w roku
Dziedziny czasopisma:: Chemistry, Nuclear Chemistry, Physics, Astronomy and Astrophysics, other

Kanał RSS czasopisma

Natural zeolite as a replacement for resin in the cation exchange process of cesium on post-irradiated nuclear fuel

Article Category: Original Paper

Data publikacji: 06 mar 2021

Zakres stron: 11 - 19

Otrzymano: 04 maj 2020

Przyjęty: 02 paź 2020

DOI: https://doi.org/10.2478/nuka-2021-0002

Słowa kluczowe
Zeolites, Resin, Cation exchange, Cesium, Nuclear fuel

© 2021 Aslina Br. Ginting et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Weight fractions (Ft/F~ at 50°C) of Cs ion at various stirring times

Analysis of cation exchange capacity (CEC)

Recovery of 137Cs isotope in the fuel element plate of U3Si2/Al using resin Dowex

Diffusion coefficient at 30°C and 50°C

Recovery of 137Cs isotope in the fuel element plate of U3Si2/Al using zeolite

Surface area, pore size and adsorption of zeolites from Bayah, Lampung, and Tasikmalaya

Optimization time of the 137Cs cation exchange process with NH4-zeolites

Fission products and half-life of isotopes

Selectivity coefficient of zeolites from Lampung [21]

Results of leaching 137Cs-zeolite from Lampung

Chemical composition of zeolites from Bayah, Lampung, and Tasikmalaya

Weight fractions (Ft/F~ at 30°C) of Cs ion at various stirring times

Natural zeolite as a replacement for resin in the cation exchange process of cesium on post-irradiated nuclear fuel

Article Category: Original Paper

Data publikacji: 06 mar 2021

Zakres stron: 11 - 19

Otrzymano: 04 maj 2020

Przyjęty: 02 paź 2020

DOI: https://doi.org/10.2478/nuka-2021-0002

Słowa kluczoweZeolites, Resin, Cation exchange, Cesium, Nuclear fuel

© 2021 Aslina Br. Ginting et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Weight fractions (Ft/F~ at 50°C) of Cs ion at various stirring times

Analysis of cation exchange capacity (CEC)

Recovery of 137Cs isotope in the fuel element plate of U3Si2/Al using resin Dowex

Diffusion coefficient at 30°C and 50°C

Recovery of 137Cs isotope in the fuel element plate of U3Si2/Al using zeolite

Surface area, pore size and adsorption of zeolites from Bayah, Lampung, and Tasikmalaya

Optimization time of the 137Cs cation exchange process with NH4-zeolites

Fission products and half-life of isotopes

Selectivity coefficient of zeolites from Lampung [21]

Results of leaching 137Cs-zeolite from Lampung

Chemical composition of zeolites from Bayah, Lampung, and Tasikmalaya

Weight fractions (Ft/F~ at 30°C) of Cs ion at various stirring times

Słowa kluczowe
Zeolites, Resin, Cation exchange, Cesium, Nuclear fuel