Method for determining complete transformation of complex americium-based nitrate solution in radioactive system

Abstract

The invention discloses a method for determining complete transformation of a complex americium-based nitrate solution under a radioactive system, and belongs to the technical field of radioactive waste liquid treatment. The radioactive americium-based nitrate solution transformation method comprises the following steps: concentrating a radioactive americium-based nitrate solution to obtain a nitrate concentrate solid; and then calcining at the temperature of between 700 and 750 DEG C. Meanwhile, the invention further provides a method for determining complete transformation of the complex americium-based nitrate solution under the radioactive system. According to the invention, the problem of how to transform the long-life and high-toxicity super-uranium nuclide material flow into the oxide is solved; the method provided by the invention is beneficial to temporary storage of nuclides, facilitates later reutilization of the nuclides, and also provides a method for identifying whether the nuclide salpeter solution is completely transformed or not.

Description

Technical Field

[0001] The invention relates to the technical field of radioactive waste liquid treatment, and in particular to a method for determining whether a complex americium-based nitrate solution is completely transformed in a radioactive system. Background Art

[0002] High level waste (HLW) is one of the most difficult forms of nuclear waste to handle. It mainly exists in the form of waste liquid (wastewater). Although the volume of high level waste is less than 1% of the volume of nuclear waste produced by the nuclear fuel cycle, the radioactivity it contains exceeds 99% of the total radioactivity of the nuclear fuel cycle. After high level waste is separated by TRPO, a transuranic nuclide solution (Am, Np, Pu and Cm) is obtained. The transuranic nuclide solution is a long-lived, highly radioactive, highly toxic and dilute nitrate solution (as shown in Table 1).

[0003] Table 1 Composition of americium-based nitrate solution after separation of power reactor high-level radioactive waste liquid

[0004] ion Feed liquid composition (mg / L) <![CDATA[Ce 3+ ]]> 234 <![CDATA[Eu 3+ ]]> 13.5 <![CDATA[Fe 3 ]]> 23.7 <![CDATA[Gd 3+ ]]> 19 <![CDATA[La 3+ ]]> 120 <![CDATA[Mo 6+ ]]> 44 <![CDATA[Nd 3+ ]]> 400.5 <![CDATA[Pd 2+ ]]> 148.47 <![CDATA[Pr 3+ ]]> 112 <![CDATA[Ru 6+ ]]> 45 <![CDATA[Sm 3+ ]]> 74 <![CDATA[Sn 2+ ]]> 8.5 Te 48 <![CDATA[Y 3+ ]]> 44.5 <![CDATA[Zr 4+ ]]> 71 <![CDATA[Np 4+ ]]> 58.37 <![CDATA[Pu 4+ ]]> 1.51 <![CDATA[Am 3+ ]]> 64.16 <![CDATA[Cm 3+ ]]> 7.69 <![CDATA[Tc 7+ ]]> 71.5 medium <![CDATA[2 mol / L HNO3 0.2 mol / L oxalic acid]]>

[0005] In order to make this solution convenient for temporary storage and to facilitate the extraction of useful nuclides later, it is necessary to completely transform it into oxides (generally, an oxidation rate of 98% is considered complete transformation); however, this solution has complex components, dilute solution concentration, inconsistent nitrate transformation temperatures of various elements, some nitrates are easy to volatilize after calcination, resulting in the loss of radioactive substances, and there is a risk of explosion, which puts forward more stringent requirements on its concentration conditions and transformation temperature. How to achieve the transformation of complex transuranic nuclide logistics and determine whether it is completely transformed is an urgent problem to be solved. Summary of the invention

[0006] In order to facilitate the temporary storage of the transuranic nuclide logistics solution after the separation of high-level radioactive waste liquid and facilitate the reuse of the nuclides in the future, it must be transformed into a stable oxide. The present invention provides a method for determining whether the transformation of a complex americium-based nitrate solution in a radioactive system is complete. The present invention not only provides a method for transforming a radioactive americium-based nitrate solution, but also provides a method for determining whether the transformation is complete.

[0007] The present invention first provides a method for transforming a radioactive americium-based nitrate solution, comprising the following steps:

[0008] The radioactive americium nitrate solution is concentrated to obtain a nitrate concentrate solid; which is then calcined at 700-750°C.

[0009] In the above-mentioned radioactive americium nitrate solution transformation method, the concentration is concentrated at 80-90°C.

[0010] In the above-mentioned radioactive americium nitrate solution transformation method, the calcination time is 1-3 hours, and can be specifically 1 hour;

[0011] The calcination is carried out in an air atmosphere;

[0012] The heating rate of the calcination is 5-10°C / min.

[0013] In the above-mentioned radioactive americium nitrate solution transformation method, the metal ions in the radioactive americium nitrate solution include the following: Ce 3+ The concentration is 0-2000mg / L, Eu 3+ The concentration is 10-100 mg / L, Fe 3+ The concentration is 0-100 mg / L, Gd 3+ The concentration is 0-100mg / L, La 3+ The concentration is 0-500mg / L, Mo 6+ The concentration is 0-200mg / L, Nd 3+ The concentration is 0-2000mg / L, Pd 2+ The concentration is 0-1000mg / L, Pr 3+ The concentration is 0-1000mg / L, Ru 6+ The concentration is 0-1200mg / L, Sm 3+ The concentration is 0-500mg / L, Sn 2+ The concentration is 0-50mg / L, Te 6+ The concentration is 0-300mg / L, Y 2+ The concentration is 0-200mg / L, Zr 4+ The concentration is 0-500mg / L, Np 4+ The concentration is 0-300mg / L, Pu 4+ The concentration is 0-50mg / L, Am 3+ The concentration is 0-300mg / L, Cm 3+ The concentration is 0-30mg / L, Tc 7+ The concentration is 0-500mg / L.

[0014] The present invention also provides a method for determining whether the complex americium-based nitrate solution is completely transformed in a radioactive system, comprising the following steps:

[0015] (1) The radioactive americium nitrate solution is concentrated to obtain a nitrate concentrate solid; the nitrate concentrate solid is then calcined at 700°C for 1 hour to obtain the mass of the sample after calcination at 700°C for 1 hour, which is recorded as Δm 700-1 ;

[0016] (2) The sample calcined in step (1) was further calcined at 700°C for 1 h to obtain the mass of the sample after calcination at 700°C for 2 h, which was recorded as Δm 700-2 ;

[0017] (3) The sample calcined in step (2) was further calcined at 700°C for 1 h to obtain the mass of the sample after calcination at 700°C for 3 hours, which was recorded as Δm 700-3 ;

[0018] (4) The sample calcined in step (3) was further calcined at 725°C for 1 h to obtain the mass of the sample after calcination at 725°C for 1 h, which was recorded as Δm 725-1 ;

[0019] (5) The sample calcined in step (4) is further calcined at 750°C for 1 h to obtain the mass of the sample after calcination at 750°C for 1 h, which is recorded as Δm 750-1 ;

[0020] (6) Δm 700-2 Divide by Δm 700-1 Multiply by 100% to obtain the transformation rate R between the radioactive americium nitrate solution calcined at 700℃ for 2h and 700℃ for 1h. 700-1 ;

[0021] Δm 700-3 Divide by Δm 700-1 Multiply by 100% to obtain the transformation rate R between the radioactive americium nitrate solution calcined at 700℃ for 3h and 700℃ for 1h. 700-2 ;

[0022] Δm 725-1 Divide by Δm 700-1 Multiply by 100% to obtain the transformation rate R between the radioactive americium nitrate solution calcined at 725℃ for 1h and calcined at 700℃ for 1h. 725-1 ;

[0023] Δm 750-1 Divide by Δm 700-1 Multiply by 100% to obtain the transformation rate R between the radioactive americium nitrate solution calcined at 750℃ for 1h and 700℃ for 1h. 750-1 .

[0024] In the above determination method, when R 700-1 , R 700-2 , R 725-1 , R 750-1 At least one value in reaches more than 99%, indicating that the radioactive americium nitrate solution is completely transformed under this condition.

[0025] In the above determination method, the concentration is concentration at 80-90°C.

[0026] In the above determination method, the calcination is carried out in an air atmosphere.

[0027] In the above determination method, the heating rate of the calcination is 5-10°C / min, specifically 5°C / min.

[0028] In the above-mentioned radioactive americium nitrate solution transformation method, the metal ions in the radioactive americium nitrate solution include the following: Ce 3+ The concentration is 0-2000mg / L, Eu 3+ The concentration is 10-100 mg / L, Fe 3+ The concentration is 0-100 mg / L, Gd 3+ The concentration is 0-100mg / L, La 3+ The concentration is 0-500mg / L, Mo 6+ The concentration is 0-200mg / L, Nd 3+ The concentration is 0-2000mg / L, Pd 2+ The concentration is 0-1000mg / L, Pr 3+ The concentration is 0-1000mg / L, Ru 6+ The concentration is 0-1200mg / L, Sm 3+ The concentration is 0-500mg / L, Sn 2+ The concentration is 0-50mg / L, Te 6+ The concentration is 0-300mg / L, Y 2+ The concentration is 0-200mg / L, Zr 4+ The concentration is 0-500mg / L, Np 4+ The concentration is 0-300mg / L, Pu 4+ The concentration is 0-50mg / L, Am 3+ The concentration is 0-300mg / L, Cm 3+ The concentration is 0-30mg / L, Tc 7+ The concentration is 0-500mg / L.

[0029] The present invention has the following beneficial effects:

[0030] The present invention firstly provides a method for transforming a complex americium-based nitrate solution under a radioactive system, and uses multiple calcinations to identify whether the transformation of the radioactive nitrate is complete; the present invention solves the problem of how to transform long-lived and highly toxic transuranic nuclide streams into oxides; the method of the present invention is conducive to the temporary storage of nuclides, facilitates the subsequent reuse of nuclides, and also provides a method for identifying whether the transformation of nuclide nitric acid solutions is complete. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with specific embodiments. The given examples are only for illustrating the present invention, but not for limiting the scope of the present invention.

[0032] The experimental methods in the following examples are all conventional methods unless otherwise specified.

[0033] The quantitative tests in the following examples were performed three times unless otherwise specified, and the results were averaged.

[0034] Unless otherwise specified, the materials and reagents used in the following examples can be obtained from commercial sources.

[0035] The composition of the simulated americium nitrate solution used in the following examples is shown in Table 2, and the composition of the radioactive americium nitrate solution is shown in Table 3.

[0036] Table 2 Composition and reagents of simulated americium nitrate solution

[0037] ion Feed solution mg / L (metal ion concentration) Reagents <![CDATA[Ce 3+ ]]> 936 <![CDATA[Ce(NO3)3·6H2O]]> <![CDATA[Eu 3+ ]]> 54 <![CDATA[Eu2O3]]> <![CDATA[Fe 3+ ]]> 94.8 <![CDATA[Fe(NO3)3·9H2O]]> <![CDATA[Gd 3+ ]]> 76 <![CDATA[Gd2O3]]> <![CDATA[La 3+ ]]> 480 <![CDATA[La2O3]]> <![CDATA[Mo 6+ ]]> 176 <![CDATA[(NH4)6Mo7O 24 ·4H2O]]> <![CDATA[Nd 3+ ]]> 1602 <![CDATA[Nd2O3]]> <![CDATA[Pd 2+ ]]> 593.88 92g / L.aq.Pd <![CDATA[Pr 3+ ]]> 448 <![CDATA[Pr6O 11 ]]> <![CDATA[Ru 6+ ]]> 180 13.11%.aq.Ru <![CDATA[Sm 3+ ]]> 296 <![CDATA[Sm2O3]]> <![CDATA[Sn 2+ ]]> 34 <![CDATA[Na2SnO3·3H2O]]> Te 192 <![CDATA[H6TeO6]]> <![CDATA[Y 3+ ]]> 178 <![CDATA[Y(NO3)3·6H2O]]> <![CDATA[Zr 4+ ]]> 284 <![CDATA[Zr(NO3)4·3H2O]]> medium 2mol / L nitric acid + 0.2mol / L oxalic acid

[0038] Table 3 Composition of radioactive americium nitrate solution

[0039] ion Feed solution mg / L (metal ion concentration) <![CDATA[Ce 3+ ]]> 1250 <![CDATA[Eu 3+ ]]> 77.2 <![CDATA[Fe 3+ ]]> 0 <![CDATA[Gd 3+ ]]> 57.9 <![CDATA[La 3+ ]]> 0 <![CDATA[Mo 6+ ]]> 0 <![CDATA[Nd 3+ ]]> 1953 <![CDATA[Pd 2+ ]]> 663 <![CDATA[Pr 3+ ]]> 565 <![CDATA[Ru 6+ ]]> 1007 <![CDATA[Sm 3+ ]]> 425 <![CDATA[Sn 2+ ]]> 0 Te 0 <![CDATA[Y 3+ ]]> 0 <![CDATA[Zr 4+ ]]> 0 <![CDATA[Np 4+ ]]> 222 <![CDATA[Pu 4+ ]]> 0 <![CDATA[Am 3+ ]]> 178 <![CDATA[Cm 3+ ]]> 14.6 <![CDATA[Tc 7+ ]]> 374

[0040] Example 1

[0041] (1) First, take two quartz crucibles, calcine them at 750°C, and after cooling, repeat the calcination twice; weigh them and mark the mass as m 1-0 、m 2-0 ; Prepare 100 mL of the simulated americium nitrate solution according to the composition of Table 2; add 15 mL of the simulated solution prepared above to the two crucibles respectively, concentrate at a temperature of 80°C until no liquid is visible, and obtain a nitrate concentrate solid; heat to 700°C at a rate of 5°C / min in an air atmosphere, keep warm for 1 hour, cool naturally to room temperature, weigh, and mark the mass as m 1-700-1 、m 2-700-1 ;m 1-700-1 、m 2-700-1 and m 1-0 、m 2-0 The difference is the mass of the sample after calcination at 700℃ for 1 hour, recorded as Δm 1-700-1 , Δm 2-700-1 ; The results are shown in Table 4;

[0042] (2) The sample was calcined at 700°C for 1 hour, cooled and weighed, and the mass was marked as m. 1-700-2 、m 2-700-2 ;m 1-700-2 、m 2-700-2 and m 1-0 、m2-0 The difference is the mass of the sample after calcination at 700℃ for 2 hours, recorded as Δm 1-700-2 , Δm 2-700-2 ;;The results are shown in Table 4;

[0043] (3) The above sample was calcined again at 700°C for 1 hour, cooled and weighed, and the mass was marked as m 1-700-3 、m 2-700-3 ;m 1-700-3 、m 2-700-3 and m 1-0 、m 2-0 The difference is the mass of the sample after calcination at 700℃ for 3 hours, recorded as Δm 1-700-3 , Δm 2-700-3 ;;The results are shown in Table 4;

[0044] (4) Continue to increase the temperature of the above sample to see if its mass changes. Heat the sample from room temperature to 725°C at a rate of 5°C / min in an air atmosphere, keep the temperature for 1 hour, then naturally cool it down to room temperature and weigh it. The mass is recorded as m 1-725-1、 m 2-725-1 ;m 1-725-1、 m 2-725-1 and m 1-0 、m 2-0 The difference is the mass of the sample after calcination at 725℃ for 1h, recorded as Δm 1-725-1 ,Δm 2-725-1 The sample was heated to 750℃ at a rate of 5℃ / min in air atmosphere, then naturally cooled to room temperature and weighed. The mass was recorded as m 1-750-1、 m 2-750-1 . m 1-750-1、 m 2-750-1 and m 1-0 、m 2-0 The difference is the mass of the sample after calcination at 750℃ for 1h, recorded as Δm 1-750-1 , Δm 2-750-1 ;;The results are shown in Table 5;

[0045] Δm 1-700-2 , Δm 2-700-2 Respectively with Δm 1-700-1 , Δm 2-700-1 The transformation rate R between the simulated solution calcined at 700℃ for 2h and calcined at 700℃ for 1h can be obtained by dividing 1-700-1、 R 2-700-1 ; Δm 1-700-3 , Δm 2-700-3 Respectively with Δm 1-700-1 , Δm 2-700-1 The transformation rate R between the simulated solution calcined at 700℃ for 3h and 700℃ for 1h can be obtained by dividing 1-700-2、 R2-700-2 ; Δm 1-725-1 , Δm 2-725-1 Respectively with Δm 1-700-1 , Δm 2-700-1 The transformation rate R between the simulated solution calcined at 725℃ for 1h and calcined at 700℃ for 1h can be obtained by dividing 1-725-1、 R 2-725-1 ; Δm 1-750-1 , Δm 2-750-1 Respectively with Δm 1-700-1 , Δm 2-700-1 The transformation rate R between the simulated solution calcined at 750℃ for 1h and 700℃ for 1h can be obtained by dividing 1-750-1、 R 2-750-1 The corresponding results are shown in Table 4-Table 5, No. 1 and No. 2 are two parallel samples. From the data in Table 4 and Table 5, it can be seen that the parallel effect of the two samples is very good. The transformation rate is almost consistent at more than 99.7% when calcined at the same temperature for different times and calcined at different temperatures for different times, which can fully meet the requirements of stable temporary storage.

[0046]

[0047] Table 4 Comparison of transformation rates of simulated americium nitrate solution transformation samples calcined at 700℃ for different times

[0048]

[0049] Table 5 Comparison of transformation rates of simulated americium-based nitrate solution transformation samples calcined at different temperatures for 1 hour

[0050]

[0051] Example 2

[0052] First, take two quartz crucibles, calcine them at 750℃, and after cooling, repeat the calcination twice; weigh them, and mark the mass as m 3-0 、m 4-0 ; Prepare 50mL of solution (medium is 2mol / L HNO3 and 0.2mol / L oxalic acid) according to the composition of radioactive americium nitrate solution in Table 3; Take 15mL and place in crucible No. 3 and No. 4 respectively, concentrate at 80°C until no liquid is visible, and obtain nitrate concentrate solid; Repeat the calcination process of Example 1, and the corresponding results are shown in Table 6 and Table 7. It can be seen from the data in Table 6 and Table 7 that the parallel effect of the two radioactive samples is very good. The transformation rate is compared by calcining at the same temperature for different times and calcining at different temperatures for different times. The transformation rate is almost the same, reaching more than 99.6%, which can fully meet the requirements of stable temporary storage.

[0053] Table 6 Comparison of transformation rates of radioactive americium-based nitrate solution transformation samples calcined at 700℃ for different times

[0054]

[0055] Table 7 Comparison of transformation rates of radioactive americium-based nitrate solution transformation samples calcined at different temperatures for 1 hour

[0056]

[0057] Comparative Example 1

[0058] This example is intended to illustrate the importance of calcination time.

[0059] (1) First, take two quartz crucibles, calcine them at 750°C, and after cooling, repeat the calcination twice; weigh them and mark the mass as m 5-0 、m 6-0 ; Take 3 mL of the solution prepared in Example 1, and then dilute it 5 times respectively; Place it in crucibles No. 5 and No. 6, and concentrate it at a temperature of 80°C until no liquid is visible to obtain a nitrate concentrate solid; Heat to 700°C at a rate of 5°C / min in an air atmosphere, keep warm for 0.5 hours, cool naturally to room temperature, and weigh it. The results are shown in Table 8.

[0060] (2) The above sample was further calcined at 700°C for 1 hour, cooled and weighed. The results are shown in Table 8.

[0061] (3) The above samples were calcined again at 700°C for 1 hour, cooled and weighed. The results are shown in Table 8.

[0062] Table 8 Comparison of the mass changes of the samples before and after calcination at different times after the initial calcination of the simulated americium nitrate solution transformation samples at 700℃ for 0.5 hours

[0063]

[0064] From the results in Table 8, it can be seen that the transformation rate is only about 97.5%, which does not reach 98%. Therefore, the initial calcination condition of 700°C for 0.5 hours cannot be used as the process condition for complete transformation.

Claims

1. A method for transforming a radioactive americium-based nitrate solution, comprising the following steps: The radioactive americium nitrate solution is concentrated to obtain a nitrate concentrate solid; which is then calcined at 700-750°C.

2. The radioactive americium-based nitrate solution transformation method according to claim 1, characterized in that: The concentration is carried out at 80-90°C.

3. The radioactive americium-based nitrate solution transformation method according to claim 1 or 2, characterized in that: The calcination time is 1-3 hours, specifically 1 hour; The calcination is carried out in an air atmosphere; The heating rate of the calcination is 5-10°C / min.

4. The method for converting a radioactive americium-based nitrate solution according to any one of claims 1 to 3, characterized in that: The metal ions in the radioactive americium nitrate solution include the following: Ce 3+ The concentration is 0-2000mg / L, Eu 3+ The concentration is 10-100 mg / L, Fe 3+ The concentration is 0-100 mg / L, Gd 3+ The concentration is 0-100mg / L, La 3+ The concentration is 0-500mg / L, Mo 6+ The concentration is 0-200mg / L, Nd 3+ The concentration is 0-2000mg / L, Pd 2+ The concentration is 0-1000mg / L, Pr 3+ The concentration is 0-1000mg / L, Ru 6+ The concentration is 0-1200mg / L, Sm 3+ The concentration is 0-500mg / L, Sn 2+ The concentration is 0-50mg / L, Te 6+ The concentration is 0-300mg / L, Y 2+ The concentration is 0-200mg / L, Zr 4+ The concentration is 0-500mg / L, Np 4+ The concentration is 0-300mg / L, Pu 4+ The concentration is 0-50mg / L, Am 3+ The concentration is 0-300mg / L, Cm 3+ The concentration is 0-30mg / L, Tc 7+ The concentration is 0-500mg / L.

5. A method for determining the complete transformation of a complex americium-based nitrate solution under a radioactive system, comprising the following steps: (1) The radioactive americium nitrate solution is concentrated to obtain a nitrate concentrate solid; the nitrate concentrate solid is then calcined at 700°C for 1 hour to obtain the mass of the sample after calcination at 700°C for 1 hour, which is recorded as Δm 700-1 ; (2) The sample calcined in step (1) was further calcined at 700°C for 1 h to obtain the mass of the sample after calcination at 700°C for 2 h, which was recorded as Δm 700-2 ; (3) The sample calcined in step (2) was further calcined at 700°C for 1 h to obtain the mass of the sample after calcination at 700°C for 3 hours, which was recorded as Δm 700-3 ; (4) The sample calcined in step (3) was further calcined at 725°C for 1 h to obtain the mass of the sample after calcination at 725°C for 1 h, which was recorded as Δm 725-1 ; (5) The sample calcined in step (4) is further calcined at 750°C for 1 h to obtain the mass of the sample after calcination at 750°C for 1 h, which is recorded as Δm 750-1 ; (6) Δm 700-2 Divide by Δm 700-1 Multiply by 100% to obtain the transformation rate R between the radioactive americium nitrate solution calcined at 700℃ for 2h and 700℃ for 1h. 700-1 ; Δm 700-3 Divide by Δm 700-1 Multiply by 100% to obtain the transformation rate R between the radioactive americium nitrate solution calcined at 700℃ for 3h and 700℃ for 1h. 700-2 ; Δm 725-1 Divide by Δm 700-1 Multiply by 100% to obtain the transformation rate R between the radioactive americium nitrate solution calcined at 725℃ for 1h and calcined at 700℃ for 1h. 725-1 ; Δm 750-1 Divide by Δm 700-1 Multiply by 100% to obtain the transformation rate R between the radioactive americium nitrate solution calcined at 750℃ for 1h and 700℃ for 1h. 750-1 .

6. The determination method according to claim 5, characterized in that: When R 700-1 , R 700-2 , R 725-1 , R 750-1 At least one value in reaches more than 99%, indicating that the radioactive americium nitrate solution is completely transformed under this condition.

7. The determination method according to claim 5 or 6, characterized in that: The concentration is carried out at 80-90°C.

8. The determination method according to any one of claims 5 to 7, characterized in that: The calcination is performed in an air atmosphere.

9. The determination method according to any one of claims 5 to 8, characterized in that: The heating rate of the calcination is 5-10°C / min.

10. The method for transforming a radioactive americium-based nitrate solution according to any one of claims 5 to 9, characterized in that: The metal ions in the radioactive americium nitrate solution include the following: Ce 3+ The concentration is 0-2000mg / L, Eu 3+ The concentration is 10-100 mg / L, Fe 3+ The concentration is 0-100 mg / L, Gd 3+ The concentration is 0-100mg / L, La 3+ The concentration is 0-500mg / L, Mo 6+ The concentration is 0-200mg / L, Nd 3+ The concentration is 0-2000mg / L, Pd 2+ The concentration is 0-1000mg / L, Pr 3+ The concentration is 0-1000mg / L, Ru 6+ The concentration is 0-1200mg / L, Sm 3+ The concentration is 0-500mg / L, Sn 2+ The concentration is 0-50mg / L, Te 6+ The concentration is 0-300mg / L, Y 2+ The concentration is 0-200mg / L, Zr 4+ The concentration is 0-500mg / L, Np 4+ The concentration is 0-300mg / L, Pu 4+ The concentration is 0-50mg / L, Am 3+ The concentration is 0-300mg / L, Cm 3+ The concentration is 0-30mg / L, Tc 7+ The concentration is 0-500mg / L.

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