NUCLEAR TECHNIQUES, Volume. 47, Issue 3, 030301(2024)
Effect of underground water composition on the chemical species distribution of plutonium
Figures & Tables(9)
Fig. 1. Effect of pH value on the distribution of hexavalent plutonium in pure water
Fig. 2. Effect of HCO3- on the species distribution of hexavalent plutonium
Fig. 3. Effect of F- on the species distribution of hexavalent plutonium
Fig. 4. Effect of Ca2+ on the species distribution of hexavalent plutonium
Fig. 5. Effect of Mg2+ on the species distribution of hexavalent plutonium
Fig. 6. Effect of pH value on the species distribution of plutonyl ion in groundwater(a) Yucca Mountain groundwater, (b) Nakdong adjacent delta groundwater, (c) Calabar River water
Table 1. Thermodynamic data for plutonium
View tableView in ArticleTable 1. Thermodynamic data for plutonium
物质 Substances 化学反应 Chemical reaction 平衡常数lgK Equilibrium constant lgK PuO22+ PuO2HPO4 = PuO22+ + HPO42- -12.607 4 a) PuO2OH+ PuO22+ + H2O = PuO2OH+ + H+ -5.637 9 a) PuO2(OH)2 PuO22+ + 2H2O = PuO2(OH)2 + 2H+ -13.2 c) PuO2(OH)3- PuO2(OH)2 + H2O = PuO2(OH)3- + H+ -9.7 c) (PuO2)2(OH)22+ 2PuO22+ + 2H2O = (PuO2)2(OH)22+ + 2H+ -8.262 6 a) (PuO2)3(OH)5+ 3PuO22+ + 5H2O = (PuO2)3(OH)5+ + 5H+ -21.655 a) (PuO2)4(OH)7+ 4PuO22+ + 7H2O = (PuO2)4(OH)7+ + 7H+ -29.11 b) PuO2F+ PuO22+ + F- = PuO2F+ 5.667 4 a) PuO2F2 PuO22+ + 2F- = PuO2F2 10.966 9 a) PuO2F3- PuO22+ + 3F- = PuO2F3- 15.916 a) PuO2F42- PuO22+ + 4F- = PuO2F42- 18.762 8 a) PuO2Cl+ PuO22+ + Cl- = PuO2Cl+ -0.208 4 a) PuO2Cl2 PuO22+ + 2Cl- = PuO2Cl2 -1.15 c) PuO2NO3+ PuO22+ + NO3- = PuO2NO3+ -1.14 b) PuO2SO4 PuO22+ + SO42- = PuO2SO4 3.265 8 a) PuO2(SO4)22- PuO22+ + 2SO42- = PuO2(SO4)22- 4.4 c) PuO2H2PO4+ PuO22+ + H+ + HPO42- = PuO2H2PO4+ 11.205 9 a) PuO2CO3 PuO22+ + CO32- = PuO2CO3 9.5 c) PuO2(CO3)22- PuO22+ + 2HCO3- = PuO2(CO3)22- + 2H+ -5.742 8 a) PuO2(CO3)34- PuO22+ + 3CO32- = PuO2(CO3)34- 18.0 c) MgPuO2(CO3)32- Mg2+ + PuO2(CO3)34- = MgPuO2(CO3)32- 4.29 d) CaPuO2(CO3)32- Ca2+ + PuO2(CO3)34- = CaPuO2(CO3)32- 6.05 d)
Table 2. Composition of groundwater from three different areas
View tableView in ArticleTable 2. Composition of groundwater from three different areas
成分
Composition
、含量 Content / mg·L-1 Yucca山地下水[
19 ]Yucca mountain groundwater
、Nakdong邻近三角洲地下水[
20 ]Groundwater in the adjacent delta of Nakdong
、Calabar河水[
21 ]Calabar river
、Ca2+ 11.62 262.00 2.35 Mg2+ 1.75 375.74 7.44 Na+ 45.06 3 014.66 132.5 K+ 5.32 80.19 4.4 Mn2+ 0.001 1 2.62 — Fe(Ⅱ + Ⅲ) 0.045 0.08 — Li+ 0.062 — — Al3+ 0.027 — — Cu2+ — 0.04 — Zn2+ — 0.14 — HCO3- 140.34 355.33 34.23 Cl- 6.381 5 298.33 207.37 F- 2.09 0.09 — NO3- 9.921 6 2.93 6.15 SO42- 96.06 22.00 18.96 Pu(Ⅵ) 0.000 23 0.054 97 0.054 97
Table 3. Species distribution of Pu(Ⅵ) in the groundwater from three different areas
View tableView in ArticleTable 3. Species distribution of Pu(Ⅵ) in the groundwater from three different areas
Yucca山地下水（pH=7）
Yucca mountain groundwater (pH=7)
、Nakdong邻近三角洲地下水（pH=7.53）
Groundwater in the adjacent delta of Nakdong (pH=7.53)
、Calabar河水（pH=6.45）
Calabar river (pH=6.45)
、PuO2OH+ PuO2OH+ PuO22+ PuO2CO3 PuO2(OH)2 PuO2OH+ PuO2(CO3)22- PuO2CO3 PuO2(OH)2 CaPuO2(CO3)32- PuO2(CO3)22- PuO2CO3 PuO2F+ PuO2(CO3)34- PuO2(CO3)22- PuO2F2 CaPuO2(CO3)32- PuO2SO4 PuO2F3- MgPuO2(CO3)32- PuO2F42-
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Qi ZHENG, Fan WANG, Fan ZHANG, Cong LI, Lifeng CHEN, Yuezhou WEI. Effect of underground water composition on the chemical species distribution of plutonium[J]. NUCLEAR TECHNIQUES, 2024, 47(3): 030301
Paper Information
Category: Research Articles
Received: Sep. 10, 2023
Accepted: --
Published Online: Apr. 29, 2024
The Author Email: CHEN Lifeng (CHENLifeng)
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