Post on 27-Dec-2015
transcript
Radiation Safety Training
Module 3 – UGA Site Specific Procedures
Chp 12, “Radiation Producing Equipment”2003
Chp 1, “Radiation Safety Organization”
Chp 2, “Principles of Radiation Safety””
Chp 3, “Radiation Exposure Limits”
Chp 4, “Facilities and Equipment Considerations”
Chp 5, “Procurement and Transfer of Radioactive Materials”
Chp 6, “Radiological Surveys”
Chp 7, “Radiological Postings”
Chp 8, “Response to Radiological Incidents”
Chp 9, “Laboratory Procedures”
Chp 10, “Radioactive Waste Handling and Disposal”
Chp 11, “Radiological Improvement Program”
RAD WASTE DISPOSALChp 10, 2003 RSM
RAD WASTE CONTAINERS
2.5 gal carboy(10 L)
(CRS 721925)
30 gal. Fiber drum
(CRS 768900)
5 gal plasticbucket
Correctly label and use liners!
IDENTIFY YOUR WASTE STREAMS !
WASTE MINIMIZATION !DO YOU SURVEY ALL YOUR DRY TRASH BEFORE PUTTING IT
INTO THE RAD WASTE DRUM?
DO YOU AUTOMATICALLY CONSIDER ALL MATERIALS USED IN THE
EXPERIMENT CONTAMINATED?
SOME MIXED WASTES GENERATED IN THE LAB CAN BE TREATED
IN THE LAB, I.E., NEUTRALIZATION, SOLVENT EXTRACTION, PRECIPITATION, DISTILLATION, ETC.
MUST BE WRITTEN INTO THE WORK PLAN AND APPROVED BY THE RSO,
HOW MUCH WILL YOU BE PAYING FOR
RAD WASTE?
RAD WASTE
SHORT-LIVEDLIQUID
SHORT-LIVEDDRY
LONG-LIVEDDRY
LONG-LIVEDLIQUID
MIXED
AQUEOUS
T1/2 >100 DAYST1/2 <100 DAYS
AQUEOUS
BIODEGRADABLELSF
BIODEGRADABLE
LSF NON-BIODEGRADABLE
LSF
SOLVENTS
RCRA CHARACTERISTICS
DRY RAD WASTE (DAW)
Segregate dry solid radioactive waste according the following categories:
Long lived DAW (half life >100 days)
Short lived DAW (half life <100 days)
Incinerable C-14/H-3 DAW (concentration < 0.05 uCi/g)
Sealed radioactive sources
DRY RAD WASTE (DAW)
Categories
Associated Quantity
Known Quantity
EACH DAW CONTAINERMUST HAVE THIS FORM
EACH FORM SHALL BE INITIATED WHEN THE
FIRSTWASTE IS PLACED IN
THE CONTAINER
COMPLETE WHEN FULL OR
WHEN YOU WANT TO DISPOSE
FORM MUST BE COMPLETED
WHEN WASTE IS RETRIEVED
MAKE COPY FOR YOUR RECORDS
LIQUID RAD WASTE
Segregate Liquid radioactive waste according the following categories:
Long lived waste (half life >100 days) by ISOTOPE
Short lived waste (half life <100 days) by ISOTOPE
Non-biodegradable liquid scintillation counting fluid containing exclusively H-3 and/or C-14 in concentrations not to exceed 0.05 µCi/gram
Long lived mixed waste by ISOTOPE
Short lived mixed waste by ISOTOPE
Rad Waste Study
Every Lab should breakdown and analyze every fraction of generated liquid rad waste as a study.
If the liquid waste generated is typical of all experiments then this can be done only once.
Evaluate Low level LRW versus High Level LRW
This study provides information on how to dispose of LRW.
Low Level LRW should be sewer discharged
High level LRW should be picked up by RSO
LIQUID RAD WASTE
Segregate Liquid Scintillation Fluid from all other liquid wastes
Must be biodegradable
If wipe test results are all <200 dpmnet (66 cpmnet), then the fluid can be poured down the sink without record
If sample test results are all <2 SD of BKG CPM plus BKG CPM, fluid can be poured down the sink without record
LIQUID RAD WASTEDetermine which route of disposal
If the liquid contains exclusively H-3, C-14, P-32, P-33, and/or S-35 in concentrations likely to be less than the ALARA action levels, the liquid may be evaluated for release. Perform and document an analysis and evaluation for release in accordance with the Evaluation of Liquids for Release Form
If the liquid does not meet the criteria described above, perform and document analysis for pick-up by Radiation Safety in accordance with the Liquid Radioactivity Analysis for a Waste Pick-Up Form
If your Radioactive Materials Permit (license) authorizes sewer disposal, perform and document analysis in accordance with section 5.5, Sewer Disposal Permits.
RSO RAD WASTE PICK UPS
9:00 AM THURDAYS
CALL 542-5801
ADD YOUR NAME/WASTES TO THE PICK UP LIST
PLACE WASTE ON DOCK THURSDAY MORNING ONLY
ALL WASTES MUST BE ESCORTED UNTILTHEY ARE RETRIEVED
This is the end of Part I. Please proceed to
Part II of III.