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Topic: Radioactive Waste Management By: UCLA Radiation Safety Division UCLA Radiation Safety Continuing Training Click ‘NEXT’
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UCLA Radiation Safety Continuing Training Personnel working with radioactive materials are required to annually complete a continuing training credit and submit documentation of completion to Radiation Safety by the end of the calendar year. This module may be used as one option for completion. Module Topic: Radioactive Waste Management Annual Continuing Training Credit
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UCLA Radiation Safety Continuing Training The UCLA Radiation Safety Division picks up radioactive waste throughout campus during designated pickup times and locations. CHS – Monday BSRB & MRL – Tuesday MBI, MSB, & TLSB – Wednesday Special pickups by appointment only (call ext 5-5396) Radioactive Waste Pickups
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Radioactive waste streams How to properly package waste How to properly fill out radioactive waste tags for each waste stream Any other special requirements In this training we will cover: UCLA Radiation Safety Continuing Training
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Radioactive Waste Streams There are 4 basic streams of radioactive wastes: Dry Solid Aqueous Liquid Liquid Scintillation Vial (LSV) Mixed UCLA Radiation Safety Continuing Training
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Here are some general requirements for packaging radioactive waste
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Radioactive Waste Containers Must be: Separated by isotope Labeled with two (2) “Caution: Radioactive Material” stickers Top and side Top and side Closed at all times when not in use Stored in a certified chemical fume hood when containing volatile chemicals UCLA Radiation Safety Continuing Training
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Radioactive Waste Shielding Appropriate shielding should be used at all times when storing radioactive waste Beta-emitting radionuclides – plastics Beta-emitting radionuclides – plastics Gamma-emitting radionuclides – lead Gamma-emitting radionuclides – lead UCLA Radiation Safety Continuing Training
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Determining the activity of radioactive waste The most acceptable means of determining activity of the waste container is to create a running sum Record the amount of radioactive material you worked with for each experiment on a log for each waste container Note: Radioactive waste activities must never exceed the isotope possession limit for your labNote: Radioactive waste activities must never exceed the isotope possession limit for your lab UCLA Radiation Safety Continuing Training
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Disposing of Dry Solid Wastes UCLA Radiation Safety Continuing Training
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What classifies as dry solid waste? Consists primarily of waste materials from RAM procedures such as: Bench coverings Bench coverings Disposable gloves Disposable gloves Empty plastic stock vials Empty plastic stock vials Petri dishes Petri dishes Note: any contaminated lab equipment should be separated from regular dry wasteNote: any contaminated lab equipment should be separated from regular dry waste UCLA Radiation Safety Continuing Training
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Deface Labeling & Markings All radiation symbols and labels should be defaced prior to disposal With a permanent marker, mark out all symbols and labels that say ‘RADIOACTIVE’ RADIOACTIVE UCLA Radiation Safety Continuing Training
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Radioactive Sharps UCLA Radiation Safety Continuing Training Sharp objects such as pipette tips, non- biohazardous syringes, and broken glassware must be contained in a puncture resistant container and double-bagged separately
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Preparing Dry Waste for Disposal Double bag waste with 3 mil thick transparent plastic bags Note: Opaque bags will be rejected at the waste pickup location Note: Opaque bags will be rejected at the waste pickup location Seal waste bags with tape using a “J-Seal” as pictured to the right UCLA Radiation Safety Continuing Training
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No Free-Standing Liquid In order to prevent the release of contamination if punctured, dry waste bags should not contain any significant amounts of free-standing liquid UCLA Radiation Safety Continuing Training
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Filling out a Waste Tag for Dry Solid Waste Fill in: Name of the PI & LA Number Contact Information & Date of disposal Radionuclide Activity (as explained earlier) For Dry Solid Waste, mark “SOLIDS” Indicate any handling precautions in the free space outlined (sharps) Sign the waste tag at the bottom Before bringing the waste down to the regularly scheduled waste pickup location, the radioactive waste ID tags must be complete and accurate.
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Disposing of Aqueous Liquid Wastes UCLA Radiation Safety Continuing Training
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What classifies as Aqueous Liquid Wastes? Liquids must be readily soluble or dispersible in water Consists primarily of: Radioactive samples Radioactive samples Contaminated liquid wash Contaminated liquid wash Unused stock material Unused stock material UCLA Radiation Safety Continuing Training
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Aqueous Liquid Waste Containers Carboys are used to contain liquid wastes The liquid volume should not exceed 75% of the total volume of the container Carboys should be inspected frequently to ensure that it is not cracked UCLA Radiation Safety Continuing Training
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Secondary Containment Liquid waste containers should always have secondary containment The secondary container must be large enough to contain the entire volume of the primary container The secondary container must be large enough to contain the entire volume of the primary container Liquid waste is rejected if they contain any solid waste (vials, pipette tips, etc.) Liquid waste is rejected if they contain any solid waste (vials, pipette tips, etc.) UCLA Radiation Safety Continuing Training
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Filling out a Waste Tag for Aqueous Liquid Waste As before, fill in: Name of the PI & LA Number Contact Information & Date of disposal Radionuclide Activity (as explained earlier) Mark LIQUIDS and indicate the volume in Liters In this section, include all the reagents that were disposed in the container with accurate volumes or weights (common names of compounds are preferred) Sign the waste tag at the bottom For aqueous liquid waste, more information needs to be collected prior to disposal.
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UCLA Radiation Safety Continuing Training Disposing of Liquid Scintillation Vial (LSV) Wastes
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What classifies as LSV Waste? LSV wastes primarily consist of: Radioactive samples Radioactive samples Liquid Scintillation Counter (LSC) standards Liquid Scintillation Counter (LSC) standards Laboratory contamination survey swipe samples Laboratory contamination survey swipe samples UCLA Radiation Safety Continuing Training
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LSV Waste Segregation LSV wastes should be segregated according to: Radioactive vs. Non-Radioactive Radioactive vs. Non-Radioactive “hot” samples“hot” samples Non-radioactive contamination wipesNon-radioactive contamination wipes Isotope Isotope Brand of Liquid scintillation fluid used Brand of Liquid scintillation fluid used UCLA Radiation Safety Continuing Training
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LSV Waste Disposal When possible, dispose of the LSV waste using the manufacturer provided trays The trays should have secondary containment when in storage and double bagged in clear plastic bags when ready for disposal UCLA Radiation Safety Continuing Training
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Filling out a Waste Tag for LSV Waste As before, fill in: Name of the PI & LA Number Contact Information & Date of disposal Radionuclide Activity (as explained earlier) Please note that the radionuclide and the activity should be “N/A” and “0” respectively for non-radioactive swipe samples Mark SCINTILLATION FLUID and indicate the volume and brand of the fluid Mark SCINTILLATION FLUID and indicate the volume and brand of the fluid Indicate any handling precautions in the free space outlined Sign the waste tag at the bottom With LSV waste, it is important to note the brand of liquid scintillation fluid used by your lab. This will help us determine whether or not it’s biodegradable or hazardous.
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UCLA Radiation Safety Continuing Training Disposing of Mixed Hazard Waste
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What classifies as Mixed Hazard Waste? MMMMixed waste consists of one or more hazards other than radioactive i.e. toxic, caustics, bio-hazardous, etc. WWWWhen possible, try to incorporate the elimination of other hazards through the experimental protocol i.e. neutralization (chemistry), autoclaving or bleaching, etc. UCLA Radiation Safety Continuing Training
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Disposing of Mixed Hazard Waste Liquid waste containers with mixed hazard solutions will not be returned to the lab When disposing lead, scan and wipe the lead to determine the presence of contamination (fixed or removable) Separate cold lead from contaminated lead Separate cold lead from contaminated lead UCLA Radiation Safety Continuing Training
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Filling out a Waste Tag for Mixed Waste As before, fill in: Name of the PI & LA Number Contact Information & Date of disposal Radionuclide Activity (as explained earlier) Please note that the radionuclide and the activity should be “N/A” and “0” respectively for non- contaminated items Mark OTHER and indicate the nature of the other hazard(s) i.e. flammable, corrosive, lead, etc. Mark OTHER and indicate the nature of the other hazard(s) i.e. flammable, corrosive, lead, etc. Indicate any handling precautions in the free space outlined Sign the waste tag at the bottom With mixed waste, ensure that any special precautions or requirements from EH&S are addressed prior to disposal through Radiation Safety.
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Disposing of Animal Wastes UCLA Radiation Safety Continuing Training
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Animal Waste Disposal All animal wastes must be delivered to CHS A6-060C and double bagged in opaque plastic bags (3 mil thick) UCLA Radiation Safety Continuing Training
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Filling out a Waste Tag for Animal Waste All information recorded on animal waste tags should directly correspond with the approved ARC protocol. Fill in: Name of the PI & LA Number Contact Information & Date of disposal Radionuclide Activity (as explained earlier) Mark ANIMALS and indicate the TYPE, NUMBER OF ANIMALS, and total WEIGHT Indicate any handling precautions in the free space outlined Sign the waste tag at the bottom
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UCLA Radiation Safety Continuing Training If you have any questions regarding the topics discussed during this presentation, please contact the radioactive waste manager at ext. 4-1876
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Training Record Form UCLA Radiation Safety Continuing Training In order to satisfy your annual continuing training credit requirement, your lab group must submit the current year’s Principal Radiation Worker Training Record Form. This form must be sent to Radiation Safety before the end of the fall quarter.
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Beside your name, check O for OTHER, date, and initial the form. If one of the workers listed is no longer with UCLA, please indicate the termination date for the worker under the column outlined. UCLA Radiation Safety Continuing Training 1 Jan 2010AE
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If you have any questions regarding the continuing training credit requirement or need a copy of your lab group’s form, please contact your responsible health physicist or the Radiation Safety training manager at ext. 6-4633 or bruiz@ehs.ucla.edu bruiz@ehs.ucla.edu UCLA Radiation Safety Continuing Training
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Thank you for attention and congratulations on completing your annual continuing training credit with the Radiation Safety Division at UCLA. END
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