PRELIMINARY ASSESSMENT OF CONTINUOUS ATMOS PHERIC DISCHARGE FROM THE LOW RADIOACTIVE WASTE INCINERATOR
Keywords:
Radioactive waste, Incineration, Gaussian plume, Mathematical model, Uncertainty analysisAbstract
The concern of society for the quality of environment and the realization that all human activities
have some environmental effects, has led to the development of predictive environmental impact assessment
procedure. This procedure predicts probable environmental effects before the decision of construction, operation,
and closure of any facility. The primary goal of this study is to preliminary assess the environmental impact
of continuous operational mode of low radioactive waste incinerator. This assessment is intended to screen
the steady-state near field radio-contaminant concentration profile in a plume immersion scenario. In this
respect, simple analytical Gaussian model was developed and applied to predict the radio-contaminant
concentration profile to support the preliminary assessment of worker exposure. The maximum radio
contaminant concentration was found to occur at the 6m and breathing levels for totally reflected radio
contaminant. The consideration of subjective uncertainty in wind speed and eddy diffusion coefficient
indicates that workers will expose to the highest radio-contaminant concentration at the breathing level and
there is 95% confidence that the value of this concentration will not exceed 1.6*10–2 Bq/m3 for each
release unit



