Testing of the SpinTek Rotary Microfilter Using Actual Waste

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The Department of Energy selected caustic-side solvent extraction (CSSX) as the preferred cesium-removal technology for SRS high-level waste. In the pretreatment step of the CSSX flowsheet, the incoming salt solution, which contains entrained sludge, is contacted with MST to adsorb strontium and selected actinides. An alternative approach replaces MST with the addition of sodium permanganate, strontium nitrate, and hydrogen peroxide. The pretreatment operation then filters the resulting slurry to remove the sludge and MST or manganese oxide and strontium carbonate solids. The filtrate receives further treatment in the solvent extraction system. SRTC personnel coordinated tests using a SpinTek rotary microfilter ... continued below

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Herman, D.T. February 13, 2004.

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Description

The Department of Energy selected caustic-side solvent extraction (CSSX) as the preferred cesium-removal technology for SRS high-level waste. In the pretreatment step of the CSSX flowsheet, the incoming salt solution, which contains entrained sludge, is contacted with MST to adsorb strontium and selected actinides. An alternative approach replaces MST with the addition of sodium permanganate, strontium nitrate, and hydrogen peroxide. The pretreatment operation then filters the resulting slurry to remove the sludge and MST or manganese oxide and strontium carbonate solids. The filtrate receives further treatment in the solvent extraction system. SRTC personnel coordinated tests using a SpinTek rotary microfilter at the vendor location in FY01. These tests demonstrated a significant improvement - 2.5 to 6 times increase - in performance relative to the conventional cross-flow filter units. Rotary microfilter testing used a filter disk with nominal pore size of either 0.1-micron or 0. 5-micron. The custom-made disks used sintered metal sheets as the filter media. The disks differed slightly in design of the permeate carrier, which facilitates flow of the product liquid. We measured filter flux and filter decontamination factor. For determining the decontamination factor, we collected samples of filtrate and feed during each test and analyzed the samples to evaluate solids and radionuclide removal.

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  • Other Information: PBD: 13 Feb 2004

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  • Report No.: WSRC-TR-2003-00030, Rev. 1
  • Grant Number: AC09-96SR18500
  • DOI: 10.2172/821500 | External Link
  • Office of Scientific & Technical Information Report Number: 821500
  • Archival Resource Key: ark:/67531/metadc788986

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  • February 13, 2004

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  • Dec. 3, 2015, 9:30 a.m.

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  • May 5, 2016, 5:34 p.m.

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Herman, D.T. Testing of the SpinTek Rotary Microfilter Using Actual Waste, report, February 13, 2004; South Carolina. (digital.library.unt.edu/ark:/67531/metadc788986/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.