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Title: Sorting method for radioactive waste

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 reducedmore » waste are substantially overturned and dispersed as they fall to the last named receiving portion.« less
Authors:
;
Publication Date:
OSTI Identifier:
6630466
Report Number(s):
US 4762280
TRN: 89-003426
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 8 Sep 1986
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; RADIOACTIVE WASTES; SORTING; SOLID WASTES; AIRTIGHTNESS; CONTAINMENT BUILDINGS; CONVEYORS; RADIATION DETECTION; RADIOACTIVE WASTE FACILITIES; RADIOACTIVE WASTE PROCESSING; RADIOACTIVITY; REDUCTION; TRANSPORT; BUILDINGS; CHEMICAL REACTIONS; CONTAINMENT; DETECTION; EQUIPMENT; HAULAGE EQUIPMENT; MANAGEMENT; MATERIALS; MATERIALS HANDLING EQUIPMENT; NUCLEAR FACILITIES; PROCESSING; RADIOACTIVE MATERIALS; WASTE MANAGEMENT; WASTE PROCESSING; WASTES 052001* -- Nuclear Fuels-- Waste Processing