Characterization of High Phosphate Radioactive Tank Waste and Simulant Development.
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| Title: | Characterization of High Phosphate Radioactive Tank Waste and Simulant Development. |
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| Authors: | LUMETTA, GREGG J.1 gregg.lumetta@pnl.gov, MCNAMARA, BRUCE K.1, BUCK, EDGAR C.1, FISKUM, SANDRA K.1, SNOW, LANÉE A.1 |
| Source: | Environmental Science & Technology. 10/15/2009, Vol. 43 Issue 20, p7843-7848. 6p. |
| Subjects: | Radioactive waste characterization, Plutonium industry, Radioactive waste disposal, Underground storage tanks, Hazardous waste site leaching, Hanford Site (Wash.), Savannah River Site (S.C.), Industry & the environment |
| Geographic Terms: | Washington (State), South Carolina |
| Abstract: | A sample at high-level radioactive tank waste was characterized to provide a basis for developing a waste simulant. The simulant is required for pilot-scale testing of pretreatment processes in a nonradiological facility. The waste material examined was derived from the bismuth phosphate process, which was the first industrial process implemented to separate plutonium from irradiated nuclear fuel. The bismuth phosphate process sludge is a complex mixture rich in bismuth, iron, sodium, phosphorus, silicon, and uranium. The form of phosphorus in this particular tank waste material in of specific importance because that is the primary component (other than water-soluble sodium salts) that must be removed from the high-level waste solids by pretreatment. This work shows unequivocally that the phosphorus in this waste material is not present as bismuth phosphate. Rather, the phosphorus appears to be incorporated mostly into an amorphous iron(III) phosphate phase. The bismuth in the sludge solids is best described as BiFeO3. The behavior of phosphorus during caustic leaching of the bismuth phosphate process sludge solids is also discussed. [ABSTRACT FROM AUTHOR] |
| Copyright of Environmental Science & Technology is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 45119689 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Characterization of High Phosphate Radioactive Tank Waste and Simulant Development. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22LUMETTA%2C+GREGG+J%2E%22">LUMETTA, GREGG J.</searchLink><relatesTo>1</relatesTo><i> gregg.lumetta@pnl.gov</i><br /><searchLink fieldCode="AR" term="%22MCNAMARA%2C+BRUCE+K%2E%22">MCNAMARA, BRUCE K.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22BUCK%2C+EDGAR+C%2E%22">BUCK, EDGAR C.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22FISKUM%2C+SANDRA+K%2E%22">FISKUM, SANDRA K.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22SNOW%2C+LANÉE+A%2E%22">SNOW, LANÉE A.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Environmental+Science+%26+Technology%22">Environmental Science & Technology</searchLink>. 10/15/2009, Vol. 43 Issue 20, p7843-7848. 6p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Radioactive+waste+characterization%22">Radioactive waste characterization</searchLink><br /><searchLink fieldCode="DE" term="%22Plutonium+industry%22">Plutonium industry</searchLink><br /><searchLink fieldCode="DE" term="%22Radioactive+waste+disposal%22">Radioactive waste disposal</searchLink><br /><searchLink fieldCode="DE" term="%22Underground+storage+tanks%22">Underground storage tanks</searchLink><br /><searchLink fieldCode="DE" term="%22Hazardous+waste+site+leaching%22">Hazardous waste site leaching</searchLink><br /><searchLink fieldCode="DE" term="%22Hanford+Site+%28Wash%2E%29%22">Hanford Site (Wash.)</searchLink><br /><searchLink fieldCode="DE" term="%22Savannah+River+Site+%28S%2EC%2E%29%22">Savannah River Site (S.C.)</searchLink><br /><searchLink fieldCode="DE" term="%22Industry+%26+the+environment%22">Industry & the environment</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Washington+%28State%29%22">Washington (State)</searchLink><br /><searchLink fieldCode="DE" term="%22South+Carolina%22">South Carolina</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: A sample at high-level radioactive tank waste was characterized to provide a basis for developing a waste simulant. The simulant is required for pilot-scale testing of pretreatment processes in a nonradiological facility. The waste material examined was derived from the bismuth phosphate process, which was the first industrial process implemented to separate plutonium from irradiated nuclear fuel. The bismuth phosphate process sludge is a complex mixture rich in bismuth, iron, sodium, phosphorus, silicon, and uranium. The form of phosphorus in this particular tank waste material in of specific importance because that is the primary component (other than water-soluble sodium salts) that must be removed from the high-level waste solids by pretreatment. This work shows unequivocally that the phosphorus in this waste material is not present as bismuth phosphate. Rather, the phosphorus appears to be incorporated mostly into an amorphous iron(III) phosphate phase. The bismuth in the sludge solids is best described as BiFeO3. The behavior of phosphorus during caustic leaching of the bismuth phosphate process sludge solids is also discussed. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Environmental Science & Technology is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1021/es9013745 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 7843 Subjects: – SubjectFull: Radioactive waste characterization Type: general – SubjectFull: Plutonium industry Type: general – SubjectFull: Radioactive waste disposal Type: general – SubjectFull: Underground storage tanks Type: general – SubjectFull: Hazardous waste site leaching Type: general – SubjectFull: Hanford Site (Wash.) Type: general – SubjectFull: Savannah River Site (S.C.) Type: general – SubjectFull: Industry & the environment Type: general – SubjectFull: Washington (State) Type: general – SubjectFull: South Carolina Type: general Titles: – TitleFull: Characterization of High Phosphate Radioactive Tank Waste and Simulant Development. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: LUMETTA, GREGG J. – PersonEntity: Name: NameFull: MCNAMARA, BRUCE K. – PersonEntity: Name: NameFull: BUCK, EDGAR C. – PersonEntity: Name: NameFull: FISKUM, SANDRA K. – PersonEntity: Name: NameFull: SNOW, LANÉE A. IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 10 Text: 10/15/2009 Type: published Y: 2009 Identifiers: – Type: issn-print Value: 0013936X Numbering: – Type: volume Value: 43 – Type: issue Value: 20 Titles: – TitleFull: Environmental Science & Technology Type: main |
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