Ion Exchange Columns for Rapid Treatment of Nuclear Medical Radioactive Wastewater Study on the Adsorption Distribution and Radiation Protection of 131I- Nuclides

Ion Exchange Columns for Rapid Treatment of Nuclear Medical Radioactive Wastewater Study on the Adsorption Distribution and Radiation Protection of 131I- Nuclides | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Ion Exchange Columns for Rapid Treatment of Nuclear Medical Radioactive Wastewater Study on the Adsorption Distribution and Radiation Protection of 131 I- Nuclides Yang Liu, Liuyuan Fu, Cheng Liu, Yunlong Zhang, Haoyang Guo, Wenguang Yang, and 3 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8160385/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 02 May, 2026 Read the published version in Journal of Radioanalytical and Nuclear Chemistry → Version 1 posted You are reading this latest preprint version Abstract With the rapid development of nuclear medicine, efficient treatment of nuclear medical radioactive wastewater is particularly important. This study simulated the dynamic adsorption behavior of 131 I − on an ion exchange column based on COMSOL Multiphysics. Combined with the MCNP6 radiation protection design, the distribution pattern of radionuclides and key influencing factors during the wastewater purification process were explored. The results show that: (1) the adsorption of 131I in the ion exchange column is distributed in an axial gradient, with the bottom (inlet) being saturated first, and the adsorption efficiency is significantly affected by the initial concentration and flow rate. (2) based on the Elovich adsorption model, the adsorption rate of the ion exchange column decreases with time. (3) after the ion exchange column is saturated, a 10–13 mm lead shielding layer can effectively reduce the gamma radiation to a safe level. This study provides a theoretical basis for the saturation replacement of ion exchange columns and the radiation protection design of deep purification equipment for nuclear medical wastewater. COMSOL Multiphysics Nuclear medical radioactive waste Ion exchange column Dynamic adsorption behavior of 131I− MCNP6 radiation protection design Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 02 May, 2026 Read the published version in Journal of Radioanalytical and Nuclear Chemistry → Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-8160385","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":553304200,"identity":"ad11c0e5-db56-4c5c-82db-db6e975b8e85","order_by":0,"name":"Yang Liu","email":"","orcid":"","institution":"Southwest University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Yang","middleName":"","lastName":"Liu","suffix":""},{"id":553304201,"identity":"ffdf0f70-6c87-4e77-ab36-1dc9ccdd354d","order_by":1,"name":"Liuyuan Fu","email":"","orcid":"","institution":"Southwest University of Science and 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Nuclides\u003c/p\u003e","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"COMSOL Multiphysics, Nuclear medical radioactive waste, Ion exchange column, Dynamic adsorption behavior of 131I−, MCNP6 radiation protection design","lastPublishedDoi":"10.21203/rs.3.rs-8160385/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-8160385/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eWith the rapid development of nuclear medicine, efficient treatment of nuclear medical radioactive wastewater is particularly important. This study simulated the dynamic adsorption behavior of \u003csup\u003e131\u003c/sup\u003eI\u003csup\u003e\u0026minus;\u003c/sup\u003e on an ion exchange column based on COMSOL Multiphysics. Combined with the MCNP6 radiation protection design, the distribution pattern of radionuclides and key influencing factors during the wastewater purification process were explored. The results show that: (1) the adsorption of 131I in the ion exchange column is distributed in an axial gradient, with the bottom (inlet) being saturated first, and the adsorption efficiency is significantly affected by the initial concentration and flow rate. (2) based on the Elovich adsorption model, the adsorption rate of the ion exchange column decreases with time. (3) after the ion exchange column is saturated, a 10\u0026ndash;13 mm lead shielding layer can effectively reduce the gamma radiation to a safe level. This study provides a theoretical basis for the saturation replacement of ion exchange columns and the radiation protection design of deep purification equipment for nuclear medical wastewater.\u003c/p\u003e","manuscriptTitle":"Ion Exchange Columns for Rapid Treatment of Nuclear Medical Radioactive Wastewater Study on the Adsorption Distribution and Radiation Protection of 131I- Nuclides","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-12-03 11:05:50","doi":"10.21203/rs.3.rs-8160385/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"00c4cce9-1a71-430c-8ce1-0cf5717ff16e","owner":[],"postedDate":"December 3rd, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2026-05-12T11:56:35+00:00","versionOfRecord":{"articleIdentity":"rs-8160385","link":"https://doi.org/10.1007/s10967-026-10904-1","journal":{"identity":"journal-of-radioanalytical-and-nuclear-chemistry","isVorOnly":false,"title":"Journal of Radioanalytical and Nuclear Chemistry"},"publishedOn":"2026-05-02 15:57:40","publishedOnDateReadable":"May 2nd, 2026"},"versionCreatedAt":"2025-12-03 11:05:50","video":"","vorDoi":"10.1007/s10967-026-10904-1","vorDoiUrl":"https://doi.org/10.1007/s10967-026-10904-1","workflowStages":[]},"version":"v1","identity":"rs-8160385","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-8160385","identity":"rs-8160385","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}