Effects of redox conditions of water on Pu and Cm leaching from waste glass

Yaohiro Inagaki, A. Sakai, H. Furuya, Kazuya Idemitsu, Tatsumi Arima, T. Banba, T. Maeda, S. Matsumoto, Y. Tamura

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

Static corrosion tests were performed on the simulated waste glass doped with Pu and Cm (PuO 2 ; 0.22wt%, Cm 2 O 3 ; 0.09%) in deionized water at 90 °C with S/V ratio of 2600 m -1 under oxidizing and reducing conditions, respectively. The corrosion tests under oxidizing conditions were performed in air, while the corrosion tests under reducing conditions were performed in an airtight stainless steel container purged with mixed gas (Ar+5%H 2 ), where the Eh of the solution was maintained at approximately -0.45 V vs SHE. The results showed that the redox conditions have no remarkable influence on the leaching behavior of Pu and Cm. It was also observed that the Pu and Cm concentrations in the 1.8 nm filtered solutions were one or two orders of magnitude lower than those in the 450 nm filtered solutions under both redox conditions, which suggests that the insoluble suspended fractions (colloidal particles) with the size from 1.8 nm to 450 nm are dominant phase for Pu and Cm in the solution under both redox conditions.

Original languageEnglish
JournalMaterials Research Society Symposium - Proceedings
Volume465
Publication statusPublished - Jan 1 1997
EventProceedings of the 1996 MRS Fall Meeting - Boston, MA, USA
Duration: Dec 2 1996Dec 6 1996

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leaching
Leaching
Glass
corrosion tests
Water
glass
Corrosion
water
Steel containers
Deionized water
Stainless Steel
Stainless steel
Gases
containers
Oxidation-Reduction
stainless steels
Air
air
gases

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Effects of redox conditions of water on Pu and Cm leaching from waste glass. / Inagaki, Yaohiro; Sakai, A.; Furuya, H.; Idemitsu, Kazuya; Arima, Tatsumi; Banba, T.; Maeda, T.; Matsumoto, S.; Tamura, Y.

In: Materials Research Society Symposium - Proceedings, Vol. 465, 01.01.1997.

Research output: Contribution to journalConference article

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abstract = "Static corrosion tests were performed on the simulated waste glass doped with Pu and Cm (PuO 2 ; 0.22wt{\%}, Cm 2 O 3 ; 0.09{\%}) in deionized water at 90 °C with S/V ratio of 2600 m -1 under oxidizing and reducing conditions, respectively. The corrosion tests under oxidizing conditions were performed in air, while the corrosion tests under reducing conditions were performed in an airtight stainless steel container purged with mixed gas (Ar+5{\%}H 2 ), where the Eh of the solution was maintained at approximately -0.45 V vs SHE. The results showed that the redox conditions have no remarkable influence on the leaching behavior of Pu and Cm. It was also observed that the Pu and Cm concentrations in the 1.8 nm filtered solutions were one or two orders of magnitude lower than those in the 450 nm filtered solutions under both redox conditions, which suggests that the insoluble suspended fractions (colloidal particles) with the size from 1.8 nm to 450 nm are dominant phase for Pu and Cm in the solution under both redox conditions.",
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AU - Inagaki, Yaohiro

AU - Sakai, A.

AU - Furuya, H.

AU - Idemitsu, Kazuya

AU - Arima, Tatsumi

AU - Banba, T.

AU - Maeda, T.

AU - Matsumoto, S.

AU - Tamura, Y.

PY - 1997/1/1

Y1 - 1997/1/1

N2 - Static corrosion tests were performed on the simulated waste glass doped with Pu and Cm (PuO 2 ; 0.22wt%, Cm 2 O 3 ; 0.09%) in deionized water at 90 °C with S/V ratio of 2600 m -1 under oxidizing and reducing conditions, respectively. The corrosion tests under oxidizing conditions were performed in air, while the corrosion tests under reducing conditions were performed in an airtight stainless steel container purged with mixed gas (Ar+5%H 2 ), where the Eh of the solution was maintained at approximately -0.45 V vs SHE. The results showed that the redox conditions have no remarkable influence on the leaching behavior of Pu and Cm. It was also observed that the Pu and Cm concentrations in the 1.8 nm filtered solutions were one or two orders of magnitude lower than those in the 450 nm filtered solutions under both redox conditions, which suggests that the insoluble suspended fractions (colloidal particles) with the size from 1.8 nm to 450 nm are dominant phase for Pu and Cm in the solution under both redox conditions.

AB - Static corrosion tests were performed on the simulated waste glass doped with Pu and Cm (PuO 2 ; 0.22wt%, Cm 2 O 3 ; 0.09%) in deionized water at 90 °C with S/V ratio of 2600 m -1 under oxidizing and reducing conditions, respectively. The corrosion tests under oxidizing conditions were performed in air, while the corrosion tests under reducing conditions were performed in an airtight stainless steel container purged with mixed gas (Ar+5%H 2 ), where the Eh of the solution was maintained at approximately -0.45 V vs SHE. The results showed that the redox conditions have no remarkable influence on the leaching behavior of Pu and Cm. It was also observed that the Pu and Cm concentrations in the 1.8 nm filtered solutions were one or two orders of magnitude lower than those in the 450 nm filtered solutions under both redox conditions, which suggests that the insoluble suspended fractions (colloidal particles) with the size from 1.8 nm to 450 nm are dominant phase for Pu and Cm in the solution under both redox conditions.

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