Modeling radionuclide migration from activated metallic waste disposal in a generic geological repository in Lithuania
•Radionuclide migration from activated metallic waste disposed of in DGR.•Role of container and waste surface contamination on radionuclide flux to geosphere.•SS container delays max release of long-lived low mobility radionuclides.•Waste surface contamination is important during initial period of d...
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| Veröffentlicht in: | Nuclear engineering and design 2020-12, Vol.370, p.110885, Article 110885 |
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| creator | Grigaliūnienė, Dalia Poškas, Robertas Kilda, Raimondas Jouhara, Hussam Poškas, Povilas |
| description | •Radionuclide migration from activated metallic waste disposed of in DGR.•Role of container and waste surface contamination on radionuclide flux to geosphere.•SS container delays max release of long-lived low mobility radionuclides.•Waste surface contamination is important during initial period of disposal.
There are two RBMK-1500 type reactors in Lithuania, which are under decommissioning now. Long-lived low and intermediate level radioactive metallic waste generated during operation and decommissioning of the nuclear power plant is foreseen for deep geological disposal (DGR). A preliminary assessment of the radionuclide release from metallic waste and migration through the engineered barriers of the generic DGR in crystalline rocks is presented in this study. The radionuclide flux to backfill and geosphere is investigated for three different container alternatives: (1) disposal of metallic waste in stainless steel containers, (2) disposal in carbon steel containers and (3) disposal in which the container is not a barrier for radionuclide migration. In addition, the impact of surface contamination of the activated waste on the radionuclide flux is investigated. Comparison of maximum fractional flux to backfill between Alternatives 1 and 2 revealed that the container material plays a noticeable role in the migration of long-lived low mobility radionuclides. The maximum fractional flux to the geosphere for all radionuclides increases from Alternative 1 to Alternative 3. Surface contamination is an important parameter when the maximum radionuclide flux to backfill is observed during the early post-closure period. |
| doi_str_mv | 10.1016/j.nucengdes.2020.110885 |
| format | Article |
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There are two RBMK-1500 type reactors in Lithuania, which are under decommissioning now. Long-lived low and intermediate level radioactive metallic waste generated during operation and decommissioning of the nuclear power plant is foreseen for deep geological disposal (DGR). A preliminary assessment of the radionuclide release from metallic waste and migration through the engineered barriers of the generic DGR in crystalline rocks is presented in this study. The radionuclide flux to backfill and geosphere is investigated for three different container alternatives: (1) disposal of metallic waste in stainless steel containers, (2) disposal in carbon steel containers and (3) disposal in which the container is not a barrier for radionuclide migration. In addition, the impact of surface contamination of the activated waste on the radionuclide flux is investigated. Comparison of maximum fractional flux to backfill between Alternatives 1 and 2 revealed that the container material plays a noticeable role in the migration of long-lived low mobility radionuclides. The maximum fractional flux to the geosphere for all radionuclides increases from Alternative 1 to Alternative 3. Surface contamination is an important parameter when the maximum radionuclide flux to backfill is observed during the early post-closure period.</description><identifier>ISSN: 0029-5493</identifier><identifier>EISSN: 1872-759X</identifier><identifier>DOI: 10.1016/j.nucengdes.2020.110885</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Activated metallic waste ; Backfill ; Carbon steels ; Containers ; Contamination ; Crystalline rocks ; Decommissioning ; Deep geological repository ; Fluctuations ; Flux ; Geology ; Geosphere ; Nuclear engineering ; Nuclear power plants ; Nuclear reactors ; Radioisotopes ; Radionuclide flux ; RBMK ; Stainless steel ; Stainless steels ; Steel container ; Waste disposal ; Waste surface contamination</subject><ispartof>Nuclear engineering and design, 2020-12, Vol.370, p.110885, Article 110885</ispartof><rights>2020 Elsevier B.V.</rights><rights>Copyright Elsevier BV Dec 15, 2020</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c392t-30ae45df19c75880b80c8832a10ced39a2f3c826cc7164ba8759718504d056043</citedby><cites>FETCH-LOGICAL-c392t-30ae45df19c75880b80c8832a10ced39a2f3c826cc7164ba8759718504d056043</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.nucengdes.2020.110885$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Grigaliūnienė, Dalia</creatorcontrib><creatorcontrib>Poškas, Robertas</creatorcontrib><creatorcontrib>Kilda, Raimondas</creatorcontrib><creatorcontrib>Jouhara, Hussam</creatorcontrib><creatorcontrib>Poškas, Povilas</creatorcontrib><title>Modeling radionuclide migration from activated metallic waste disposal in a generic geological repository in Lithuania</title><title>Nuclear engineering and design</title><description>•Radionuclide migration from activated metallic waste disposed of in DGR.•Role of container and waste surface contamination on radionuclide flux to geosphere.•SS container delays max release of long-lived low mobility radionuclides.•Waste surface contamination is important during initial period of disposal.
There are two RBMK-1500 type reactors in Lithuania, which are under decommissioning now. Long-lived low and intermediate level radioactive metallic waste generated during operation and decommissioning of the nuclear power plant is foreseen for deep geological disposal (DGR). A preliminary assessment of the radionuclide release from metallic waste and migration through the engineered barriers of the generic DGR in crystalline rocks is presented in this study. The radionuclide flux to backfill and geosphere is investigated for three different container alternatives: (1) disposal of metallic waste in stainless steel containers, (2) disposal in carbon steel containers and (3) disposal in which the container is not a barrier for radionuclide migration. In addition, the impact of surface contamination of the activated waste on the radionuclide flux is investigated. Comparison of maximum fractional flux to backfill between Alternatives 1 and 2 revealed that the container material plays a noticeable role in the migration of long-lived low mobility radionuclides. The maximum fractional flux to the geosphere for all radionuclides increases from Alternative 1 to Alternative 3. Surface contamination is an important parameter when the maximum radionuclide flux to backfill is observed during the early post-closure period.</description><subject>Activated metallic waste</subject><subject>Backfill</subject><subject>Carbon steels</subject><subject>Containers</subject><subject>Contamination</subject><subject>Crystalline rocks</subject><subject>Decommissioning</subject><subject>Deep geological repository</subject><subject>Fluctuations</subject><subject>Flux</subject><subject>Geology</subject><subject>Geosphere</subject><subject>Nuclear engineering</subject><subject>Nuclear power plants</subject><subject>Nuclear reactors</subject><subject>Radioisotopes</subject><subject>Radionuclide flux</subject><subject>RBMK</subject><subject>Stainless steel</subject><subject>Stainless steels</subject><subject>Steel container</subject><subject>Waste disposal</subject><subject>Waste surface contamination</subject><issn>0029-5493</issn><issn>1872-759X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNqFkE1PwzAMhiMEEmPwG4jEuSNJ2yU9ThNf0hAXkLhFWeIWT10zknSIf0-mIa74Etl-_Tp-CLnmbMYZn99uZsNoYegcxJlgIlc5U6o-IROupChk3byfkgljoinqqinPyUWMG3aIRkzI_tk76HHoaDAOfbbq0QHdYhdMyjltg99SYxPuTQJHt5BM36OlXyYmoA7jzkfTUxyooR0MEHKvA9_7Dm2uB8h9TD58HyQrTB-jGdBckrPW9BGuft8pebu_e10-FquXh6flYlXYshGpKJmBqnYtb6yslWJrxaxSpTCcWXBlY0RbWiXm1ko-r9ZG5WslVzWrHKvnrCqn5Obouwv-c4SY9MaPYcgrtaiklBlVpbJKHlU2-BgDtHoXcGvCt-ZMHyDrjf6DrA-Q9RFynlwcJyEfsUcIOlqEIX8OA9ikncd_PX4Ai7CLbA</recordid><startdate>20201215</startdate><enddate>20201215</enddate><creator>Grigaliūnienė, Dalia</creator><creator>Poškas, Robertas</creator><creator>Kilda, Raimondas</creator><creator>Jouhara, Hussam</creator><creator>Poškas, Povilas</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7ST</scope><scope>7TB</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>KR7</scope><scope>L7M</scope><scope>SOI</scope></search><sort><creationdate>20201215</creationdate><title>Modeling radionuclide migration from activated metallic waste disposal in a generic geological repository in Lithuania</title><author>Grigaliūnienė, Dalia ; Poškas, Robertas ; Kilda, Raimondas ; Jouhara, Hussam ; Poškas, Povilas</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-30ae45df19c75880b80c8832a10ced39a2f3c826cc7164ba8759718504d056043</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Activated metallic waste</topic><topic>Backfill</topic><topic>Carbon steels</topic><topic>Containers</topic><topic>Contamination</topic><topic>Crystalline rocks</topic><topic>Decommissioning</topic><topic>Deep geological repository</topic><topic>Fluctuations</topic><topic>Flux</topic><topic>Geology</topic><topic>Geosphere</topic><topic>Nuclear engineering</topic><topic>Nuclear power plants</topic><topic>Nuclear reactors</topic><topic>Radioisotopes</topic><topic>Radionuclide flux</topic><topic>RBMK</topic><topic>Stainless steel</topic><topic>Stainless steels</topic><topic>Steel container</topic><topic>Waste disposal</topic><topic>Waste surface contamination</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Grigaliūnienė, Dalia</creatorcontrib><creatorcontrib>Poškas, Robertas</creatorcontrib><creatorcontrib>Kilda, Raimondas</creatorcontrib><creatorcontrib>Jouhara, Hussam</creatorcontrib><creatorcontrib>Poškas, Povilas</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Environment Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><jtitle>Nuclear engineering and design</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Grigaliūnienė, Dalia</au><au>Poškas, Robertas</au><au>Kilda, Raimondas</au><au>Jouhara, Hussam</au><au>Poškas, Povilas</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Modeling radionuclide migration from activated metallic waste disposal in a generic geological repository in Lithuania</atitle><jtitle>Nuclear engineering and design</jtitle><date>2020-12-15</date><risdate>2020</risdate><volume>370</volume><spage>110885</spage><pages>110885-</pages><artnum>110885</artnum><issn>0029-5493</issn><eissn>1872-759X</eissn><abstract>•Radionuclide migration from activated metallic waste disposed of in DGR.•Role of container and waste surface contamination on radionuclide flux to geosphere.•SS container delays max release of long-lived low mobility radionuclides.•Waste surface contamination is important during initial period of disposal.
There are two RBMK-1500 type reactors in Lithuania, which are under decommissioning now. Long-lived low and intermediate level radioactive metallic waste generated during operation and decommissioning of the nuclear power plant is foreseen for deep geological disposal (DGR). A preliminary assessment of the radionuclide release from metallic waste and migration through the engineered barriers of the generic DGR in crystalline rocks is presented in this study. The radionuclide flux to backfill and geosphere is investigated for three different container alternatives: (1) disposal of metallic waste in stainless steel containers, (2) disposal in carbon steel containers and (3) disposal in which the container is not a barrier for radionuclide migration. In addition, the impact of surface contamination of the activated waste on the radionuclide flux is investigated. Comparison of maximum fractional flux to backfill between Alternatives 1 and 2 revealed that the container material plays a noticeable role in the migration of long-lived low mobility radionuclides. The maximum fractional flux to the geosphere for all radionuclides increases from Alternative 1 to Alternative 3. Surface contamination is an important parameter when the maximum radionuclide flux to backfill is observed during the early post-closure period.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.nucengdes.2020.110885</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Activated metallic waste Backfill Carbon steels Containers Contamination Crystalline rocks Decommissioning Deep geological repository Fluctuations Flux Geology Geosphere Nuclear engineering Nuclear power plants Nuclear reactors Radioisotopes Radionuclide flux RBMK Stainless steel Stainless steels Steel container Waste disposal Waste surface contamination |
| title | Modeling radionuclide migration from activated metallic waste disposal in a generic geological repository in Lithuania |
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