Sorting method for radioactive waste
Patent
·
OSTI ID:6630466
This paper describes a method for detecting radioactive components in dry active waste, comprising the steps of: providing a substantially airtight housing, withdrawing air from the housing, reducing the waste to pieces of substantially uniform size, providing a first conveyor in the housing, the first conveyor having a receiving portion and a discharge portion, discharging the pieces of reduced waste onto the first conveyor, flattening the pieces of reduced waste, detecting radiation emanating from the pieces of reduced waste from a position closely overlying the first conveyor, after the pieces are flattened, removing from the first conveyor the pieces of reduced waste from which radioactive radiation above a determined level is detected, providing a second conveyor in the housing, the second conveyor having a receiving portion and a discharge portion, disposing the second conveyor so that its receiving portion is below and spaced from the discharge portion of the first conveyor, discharging the pieces of reduced waste from the discharge portion of the first conveyor so that they fall onto the receiving portion of the second conveyor; the space between the last named discharge portion and the last named receiving portion being sufficiently great so that the pieces of reduced waste are substantially overturned and dispersed as they fall to the last named receiving portion.
- Assignee:
- Westinghouse Electric Corp., Pittsburgh, PA
- Patent Number(s):
- US 4762280
- OSTI ID:
- 6630466
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
AIRTIGHTNESS
BUILDINGS
CHEMICAL REACTIONS
CONTAINMENT
CONTAINMENT BUILDINGS
CONVEYORS
DETECTION
EQUIPMENT
HAULAGE EQUIPMENT
MANAGEMENT
MATERIALS
MATERIALS HANDLING EQUIPMENT
NUCLEAR FACILITIES
PROCESSING
RADIATION DETECTION
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE FACILITIES
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
RADIOACTIVITY
REDUCTION
SOLID WASTES
SORTING
TRANSPORT
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
AIRTIGHTNESS
BUILDINGS
CHEMICAL REACTIONS
CONTAINMENT
CONTAINMENT BUILDINGS
CONVEYORS
DETECTION
EQUIPMENT
HAULAGE EQUIPMENT
MANAGEMENT
MATERIALS
MATERIALS HANDLING EQUIPMENT
NUCLEAR FACILITIES
PROCESSING
RADIATION DETECTION
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE FACILITIES
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
RADIOACTIVITY
REDUCTION
SOLID WASTES
SORTING
TRANSPORT
WASTE MANAGEMENT
WASTE PROCESSING
WASTES