A practical profile of integrated safety assessment of near-surface disposal of radwaste at PINSTECH.
Near-surface or shallow land disposal of radioactive waste has been the primary practice at the Pakistan Institute of Nuclear Science and Technology (PINSTECH). The adopted choice of this mode of disposal has been based on a study of the site and the quality and quantity of waste generated at the 5 MW reactor with HEU fuel. Specific measures regarding the radiation safety of the workers and environmental protection have been adopted. The waste disposal operations are conducted to meet local regulatory requirements, IAEA recommendations and internationally endorsed principles such as ALARA (as low as reasonably achievable - economic, social and other relevant factors being considered). The data obtained through the years of operational and management experience have manifested the robustness of the disposal system and reliability of the disposal criterion, and have also served to further refine the latter. Consequently, confidence in the current shallow-land-burial practices has increased. Radiological safety of these practices has been assessed by addressing different aspects of the safety and disposal system. These parameters, as indices of a non-exclusive and operational safety model, are presented.
Health Physics Division, Pakistan Institute of Nuclear Science and Technology, Nilore, Islamabad, Pakistan. fjan@pinstech.org.pk
F
F
Jan
S S
SS
Ahmad
S M
SM
Hasany
M
M
Aslam
D000398:Air Pollution, Radioactive / Q000517:prevention & control; D004784:Environmental Monitoring; D006256:Hazardous Waste; D006801:Humans; D010154:Pakistan; D011834:Radiation Monitoring; D011835:Radiation Protection; D011848:Radioactive Pollutants; D011850:Radioactive Waste; D019275:Radiopharmaceuticals; D012037:Refuse Disposal; D018570:Risk Assessment; D017751:Safety Management / Q000331:legislation & jurisprudence; D012990:Soil Pollutants, Radioactive; D014865:Waste Disposal, Fluid; D018505:Waste Management / Q000331:legislation & jurisprudence; D014878:Water Pollution, Radioactive / Q000517:prevention & control
D006256:Hazardous Waste; D011848:Radioactive Pollutants; D011850:Radioactive Waste; D019275:Radiopharmaceuticals; D012990:Soil Pollutants, Radioactive