{"id":3511,"date":"2016-06-20T16:31:17","date_gmt":"2016-06-20T16:31:17","guid":{"rendered":"https:\/\/eicdev.fiu.edu\/phparc\/?p=3511"},"modified":"2023-01-23T11:29:19","modified_gmt":"2023-01-23T16:29:19","slug":"chemical-process-alternatives-for-radioactive-waste-evaluation-of-fius-solid-liquid-interface-monitor-slim-for-estimating-the-onset-of-deep-sludge-gas-release-events","status":"publish","type":"post","link":"https:\/\/eicdev.fiu.edu\/phparc\/projects\/chemical-process-alternatives-for-radioactive-waste-evaluation-of-fius-solid-liquid-interface-monitor-slim-for-estimating-the-onset-of-deep-sludge-gas-release-events\/","title":{"rendered":"Chemical Process Alternatives for Radioactive Waste: Evaluation of FIU\u2019s Solid-Liquid Interface Monitor (SLIM) for Estimating the Onset of Deep Sludge Gas Release Events"},"content":{"rendered":"

Sponsor – DOE<\/strong><\/p>\n

The ability to monitor the interface between liquids containing suspended solids and settled solids in HLW tanks has multiple, important applications at Hanford including:<\/p>\n

\"Fig.

Fig. 2. Deployment platform with gooseneck heel<\/p><\/div>\n

\"60cae595bbdb4758b8b4e16279f93c3a\"

Fig. 1. 3D profiling sonar and controller<\/p><\/div>\n

    \n
  • Measurement of the height of HLW solids added to double-shelled tanks to ensure it is below the critical value determined from a safety basis;<\/li>\n
  • Imaging in single-shelled tanks to support pump emplacement to minimize plugging potential;<\/li>\n
  • Rapid imaging of the floors of mixing, conditioning tanks to ensure effective mixing and retrieval of waste by Pulsed Jet Mixers (PJMs);<\/li>\n
  • Imaging and volume estimation of settled solids in HLW tanks to monitor for hydrogen gas retention in deep sludge layers as seen by increased volume (height) of waste.<\/li>\n<\/ul>\n

    FIU\u2019s Applied Research Center (ARC) has developed a near-real-time solid-liquid interface monitor (SLIM) able to be deployed into 1 million gallon HLW tanks at Hanford.
    \nSLIM consists of:<\/p>\n

      \n
    • A profiling 3D sonar;<\/li>\n
    • A mechanical system for deployment of the monitor into HLW tanks.\n

      \"Fig.

      Fig. 3. Air bladder with metal weights underneath taped to a plastic lid.<\/p><\/div><\/li>\n<\/ul>\n

      SLIM is capable of:<\/p>\n

        \n
          \n
        • Functioning in high-nuclear radiation in HLW;<\/li>\n
        • Functioning in highly caustic solutions (pH>14);<\/li>\n
        • Being deployed through a 4-inch riser at the top of
          \nthe HLW tank;<\/li>\n
        • Operating from many meters to as low as 10 inches above the settled solids layer;<\/li>\n
        • Measuring the interface elevation across the sonar\u2019s field of view and mapping the surface;<\/li>\n
        • Measuring the change in elevation of surface (hence the volume of waste under that surface) over time in the tank;<\/li>\n
        • Measuring the height of the solids layer to 1% resolution (i.e., 1 cm for sonar 1 m above surface: 3 mm for sonar 30 cm or 1 ft above the surface).\n

          \"Fig.

          Fig. 4. Same air bladder covered with paver sand to create object to be imaged by the 3D sonar.<\/p><\/div><\/li>\n<\/ul>\n<\/ul>\n

          Benefits:<\/strong>
          \nBenefits of developing the Solid-Liquid Interface Monitor are:<\/p>\n

            \n
          • Improves HLW retrieval efficiency;<\/li>\n
          • Assists in maximizing the utilization of available tank space in the double-shell receiver tanks;<\/li>\n
          • Protects workers and minimizes dose by remote operation of monitoring activities;<\/li>\n
          • Reduces environmental risk by ensuring that HLW tanks cannot be overfilled.<\/li>\n<\/ul>\n

            Accomplishments:<\/strong><\/p>\n

            \"Fig.

            <\/strong> Fig. 5. Four 3D sonar images: no air in bladder (left); after successive air additions in the next 3 images.<\/strong><\/p><\/div>\n

             <\/p>\n

              \n
            • Completed several prototypes of SLIM and tested against functional requirements for in-tank deployment;<\/li>\n
            • Mechanical, instrumentation and control design of system follow Hanford specifications;<\/li>\n
            • Performed system structural Finite Element Analysis (FEA) of the deployment platform;<\/li>\n
            • Completed system in-house fabrication;<\/li>\n
            • Completed 25+ tests on SLIM or the sonar alone and demonstrated that it met the Hanford site\u2019s needs for 4 different applications in HLW tanks (described above).<\/li>\n<\/ul>\n

               <\/p>\n

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              Sponsor – DOE The ability to monitor the interface between liquids containing suspended solids and settled solids in HLW tanks has multiple, important applications at Hanford including: Measurement of the height of HLW solids added to double-shelled tanks to ensure it is below the critical value determined from a safety basis; Imaging in single-shelled tanks to support pump emplacement to minimize plugging potential; Rapid imaging of the floors of mixing,…<\/p>\n","protected":false},"author":3,"featured_media":3589,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42],"tags":[47,83],"class_list":["post-3511","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-projects","tag-environment","tag-waste-processing"],"_links":{"self":[{"href":"https:\/\/eicdev.fiu.edu\/phparc\/wp-json\/wp\/v2\/posts\/3511","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eicdev.fiu.edu\/phparc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eicdev.fiu.edu\/phparc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eicdev.fiu.edu\/phparc\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/eicdev.fiu.edu\/phparc\/wp-json\/wp\/v2\/comments?post=3511"}],"version-history":[{"count":1,"href":"https:\/\/eicdev.fiu.edu\/phparc\/wp-json\/wp\/v2\/posts\/3511\/revisions"}],"predecessor-version":[{"id":3632,"href":"https:\/\/eicdev.fiu.edu\/phparc\/wp-json\/wp\/v2\/posts\/3511\/revisions\/3632"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/eicdev.fiu.edu\/phparc\/wp-json\/wp\/v2\/media\/3589"}],"wp:attachment":[{"href":"https:\/\/eicdev.fiu.edu\/phparc\/wp-json\/wp\/v2\/media?parent=3511"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eicdev.fiu.edu\/phparc\/wp-json\/wp\/v2\/categories?post=3511"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eicdev.fiu.edu\/phparc\/wp-json\/wp\/v2\/tags?post=3511"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}