1 / 22

Radioiodine Collection Filter Efficiency Testing Program at F&J Specialty Products, Inc. by Frank M. Gavila

Radioiodine Collection Filter Efficiency Testing Program at F&J Specialty Products, Inc. by Frank M. Gavila. 12 TH Annual RETS/REMP Workshop. Presentation Overview. Radioiodine Collection Cartridge Efficiency Testing Standardized Testing

iolana
Download Presentation

Radioiodine Collection Filter Efficiency Testing Program at F&J Specialty Products, Inc. by Frank M. Gavila

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Radioiodine Collection Filter Efficiency Testing Program at F&J Specialty Products, Inc.by Frank M. Gavila 12TH Annual RETS/REMP Workshop

  2. Presentation Overview • Radioiodine Collection Cartridge Efficiency Testing • Standardized Testing • Factors Affecting Efficiencies of Radioiodine Collection Cartridges • F&J Quality Assurance and Quality Control Programs

  3. Radioiodine Collection Cartridges Efficinecy Testing Program Key elements • Testing is performed on every batch of adsorbent material • Testing is performed at different flow rates • Integration of new batch data from individual batches into data of all previous batches • Development of data for different sampling scenarios • Determination of pressure drop data vs. flow rate for each type of adsorbent material • Creation of graphical representation of collection efficiency vs. flow data and determination of mathematical equations that represent efficiency vs. flow relationship

  4. Radioiodine Collection Filter Geometries Dimensions Material F&J Geometry Diameter Height Casing Series 2.25” 1.03” plastic C, CS, CSM 2.50” 1.00” plastic B 2.51” 1.01” metal M 2.54” 1.62” metal M.5 (WRGM Monitor) 3.43” 1.23” plastic 3x1 3.20” 2.20” plastic 3x2 1.63” 0.76” plastic Lapel Filter 1.24” 1.11” plastic 744/844 (Victoreen Monitor) 2.25” 1.04” metal FJ100/200

  5. Typical Adsorbents and Mesh Sizes Available TEDA Silver Impregnated Impregnated Carbon Silver Zeolite Silica Gel 5% by wt. TEDA 37% by wt. Ag 12% by wt. Ag US Sieve US Sieve US Sieve TEDA-1 8x16 16x40 10x16 TEDA-2 30x50 30x50 TEDA-3 20x40 50X80 TEDA-4 12x20

  6. Activated Carbon Particulate Selector To determine approximate mesh size of an activated carbon sample, compare representative particles of the largest and smallest size to the printed solid circles. Mesh size is given in two numbers, e.g., "6x10." The first number is a mesh slightly larger than the largest representative particle, and the second is a mesh slightly smaller than the smallest particle. Normal manufacturing tolerances allow for a few non- representative particles in each sample. Standard Mesh Opening Particle Standard Mesh Opening Particle Tyler U.S. mm inches Tyler U.S. mm inches 4 4 4.70 0.185  35 40 .417 .016  6 6 3.33 .131  42 45 .351 .014  8 8 2.36 .094  48 50 .295 .012  10 12 1.65 .065  60 60 .246 .0097  12 14 1.40 .056  80 80 .175 .0069  14 16 1.17 .047  100 100 .147 .0058 16 18 .991 .039  150 140 .104 .0041 20 20 .833 .033  200 200 .074 .0029 24 25 .701 .028  250 230 .061 .0024 28 30 .589 .023  325 325 .043 .0017 32 35 .495 .020  400 400 .038 .0015

  7. Product Specifications • Detailed physical and performance specifications provided with each radioiodine collection cartridge manufactured by F&J.

  8. Charcoal Mesh Size Charcoal Type TEDA Impregnation Dimensions Casing Filter Labeling Performance Test Data Quality Assurance Requirements Individual Filter Package Intermediate Packaging Exterior Packaging Incineration Approval 20 X 40 Mesh Coconut Shell Carbon 5% By Weight H = 1.05” +/- 0.01” D = 2.26” +/- 0.01” Plastic Cased Color coded YELLOW to distinguish it from other material types and indicating flow direction % CH3I vs flow rate from 0.5 CFM to10 CFM as per ASTM D 3803-1989 ISO 9001-1994 Quality Assurance Program and statistical process control program for diameter and height parameters Sealed individually in plastic bags with model #, batch # ID and mesh size. The expiration date on the bag. 50 Filters/Box (6 Pounds) 200 or 250 Filters/Case (24 or 30 Pounds) Yes. By GTS Duratek, Oak Ridge, Tennessee TECHNICAL SPECIFICATIONS TEDA IMPREGNATED CHARCOAL FILTERS 2-1/4" D X 1" H F&J PRODUCT CODE: TE3C

  9. TECHNICAL SPECIFICATIONS SILVER ZEOLITE 2-1/4" D X 1" H F&J PRODUCT CODE: AGZC35 • Charcoal Mesh Size • Charcoal Type • TEDA Impregnation • Dimensions • Casing • Filter Labeling • Performance Test Data • Quality Assurance Requirements • Individual Filter Package • Intermediate Packaging • Exterior Packaging • Incineration Approval 30 X 50 Mesh Silver Zeolite 37% Ag By Weight H = 1.05” +/- 0.01” D = 2.26” +/- 0.01” Plastic Cased Color coded BLUE to distinguish it from other material types and indicating flow direction % CH3I vs flow rate from 0.5 CFM to5 CFM as per ASTM D 3803-1989 ISO 9001-1994 Quality Assurance Program and statistical proecess control program for diameter and height parameters Sealed individually in plastic bags with model #, batch # ID and mesh size. The expiration date on the bag. 50 Filters/Box (6 Pounds) 200 or 250 Filters/Case (24 or 30 Pounds) Not Applicable

  10. Key Physical Parameters of Radioiodine Collection Filter Cartridge Efficiencies • Adsorbent bed thickness • Flow rate of pollutant stream passing through filter • Temperature of pollutant stream • Specific pollutant species • Relative humidity of pollutant stream • Type of adsorbent • Mesh size of adsorbent in filter • Sample duration • Bed compaction

  11. ASTM D3803, 1989 Parameters • Pressure 1 atm • Temperature 30o C • Pre-equilibration Period 16 hours • Equilibration Period 120 minutes • CH3I Concentration 1.75 mg/m3 • Loading Duration 60 minutes • Post Sweep Period 60 minutes • Bed Depth 2 inches • Velocity of Gas Stream 11.6 to 12.8 m/min. • Relative Humidity 95%

  12. F&J’s Modifications to ASTM D3803, 1989 Test Method • The 2 inch bed depth is modified to the bed depth of the specific filter cartridge geometry. • Variable flow rates are utilized to determine the relationship of efficiency vs. flow rate for each filter cartridge manufactured by F&J. • Various sample durations were utilized to represent typical field sampling scenarios.

  13. Test Conditions For F&J Sampling Scenarios SHORT- INTERMEDIATE- LONG- PARAMETERS TERM TERM TERM Pre-equilibration period (hrs.) None 16 16 Equilibration period (hrs.) None 2 2 Loading duration (hrs.) 1 1 1 Post sweep duration (hrs.) 1 1 168 CH3I concentration (mg/m3) 1.75 1.75 1.75 Pressure (atm) 1 1 1 Bed depth Actual filter Actual filter Actual filter Flow rate ~14 to 198 LPM ~14 to 198 LPM ~14 to 198 LPM Temperature (ºC) 30 30 30 Relative Humidity (%) 90-95 95 95

  14. Equations for Methyl Iodide Collection Efficiency vs. Flow Rate for TEDA Impregnated Charcoal Cartridges and Silver Zeolite Cartridges Applicable to Series C, CS, CSM, B and M Short-Term Sampling Scenario Adsorbent Type X = CFM Equations X = LPM Equations AGZ58 y = -0.3725x2 + 0.8855x + 99.328 y = -0.0005x2 + 0.0313x + 99.328 TEDA-1 y = 0.3845x2 – 7.1557x + 106.04 y = 0.0005x2 – 0.2529x + 106.04 TEDA-2 y = -0.4758x2 + 0.8722x + 99.689 y = -0.0006x2 + 0.0308 + 99.689 TEDA-3 y = -0.1253x2 – 3.4068x + 101.52 y = -0.0002x2 – 0.1188x + 101.54 TEDA-4 y = -1.06x2 + 3.43x + 97.24 y = -0.0013x2 + 0.1212x + 97.24 Intermediate-Term Sampling Scenario Adsorbent Type X = CFM Equations X = LPM Equations AGZ164 y = 0.2946x2 – 7.2553x + 105.73 y = 0.0004x2 –0.2562x + 105.73 AGZ35 y = 0.0845x2 – 4.0033x + 103.36 y = 0.0001x2 –0.1414x + 103.36 AGZ58 y = 0.39x2 – 1.4622x + 101.06 y = -0.00007x2 –0.018x + 100.36 TEDA-1 y = 1.8549x2 – 20.107x + 107.86 y = 0.0023x2 –0.7102x + 107.86 TEDA-2 y = 0.2646x2 – 0.3535x + 100.45 y = -0.0003x2 –0.0125x + 100.45 TEDA-3 y = 0.0467x2 – 4.3026x + 104.13 y = 0.00006x2 –0.1519x + 104.13 TEDA-4 y = 3.5938x2 – 26.102x + 110.58 y = 0.0045x2 –0.922x + 110.59 Long-Term Sampling Scenario Adsorbent Type X = CFM Equations X = LPM Equations TEDA-1 y = 2.295x2 – 20.365x + 103.33 y = 0.0029x2 –0.7192x + 103.33 TEDA-2 y = -0.1414x2 – 0.3481x + 99.923 y = -0.0002x2 –0.0123x + 99.923 TEDA-3 y = -0.4928x2 – 1.3921x + 100.91 y = -0.0006x2 –0.0492x + 100.91 TEDA-4 y = -1.22x2 – 6.23x + 100.49 y = -0.0015x2 –0.2211x + 100.52

  15. Factors Affecting Efficiencies of Radioiodine Collection Cartridges • Species Impact Collection efficiency of I2(g) > Collection efficiency of CH3I(g) • Temperature Impact Efficiency increases with an increase in temperature • Relative Humidity Impact Efficiency decreases with an increase in relative humidity • Flow Rate Impact Efficiency decreases with an increase in flow rate • Bed Depth Impact Efficiency increases with an increase in bed depth of the cartridge • Sample Duration Impact Efficiency decreases with an increase in sample duration • Particle Size Impact Efficiency increases with a decrease in particle size of the adsorbent

More Related