Page 18 - Radiation Safety

WASTE MANAGEMENT

Principle of Radioactive Waste Management Procedure of Waste Management

To : COLLECTION
1. Protect human health
2. Protect environment
3. Protect spreading beyond national borders SEGREGATION
4. Protect future generation Depends on the physical forms & source category
5. Eliminate burdens on future generations
6. Management o national legal framework
7. Safety of facility TREATMENT
Category of Radioactive Waste Principle of Treatment

DELAY & DECAY CONCENTRATE & CONTAIN DILUTE & DISPERSE
EXEMPT WASTE LOW AND INTERMEDIATE LEVEL
Activity levels at or below clearance WASTE – SHORT LIVED (LILW-SL) - For short-lived - Reduction in volume - For liquid &
levels Activity levels above clearance level radionuclide - Applicable to Solid & Liquid gaseous
- Retained & confined
waste and thermal power less than
Diposal : 2kW/m Restricted long lived
3.
No radiological restriction. Can be radionuclide concentration
disposed ordinarily CONDITIONING OF WASTE
Diposal : Objective: Leach resistant, stabilization (mechanically,
Near surface thermally, chemically)
LOW AND INTERMEDIATE LEVEL HIGH LEVEL WASTE STORAGE OF WASTE
WASTE – LONG LIVED (LILW-LL) Waste which contains large The storage facility must be properly construct depend on nature of waste
Activity levels above clearance level concentrations of both short and long- and category:
waste and thermal power less than lived radionuclide, and is sufficiently 1. Placement of radiation & caution signs
2kW/m . Long lived radionuclide radioactive to rquire both shielding and 2. Restricted area
3
concentrations exceeding limitations cooling. Generates more than 2kW/m 3 3. Cooling
for short lived waste. heat. 4. Shielding
5. Isolated area
Diposal : Diposal : 6. Low risk of fire & flood
Waste requires shielding, but needs Deep geological disposal.
little or no provision for heat
dissipation. Geological disposal facility DISPOSAL
Emplacement of waste material in repository without intention of retrieving it in
future.