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Development and assessment of two decontamination processes: closed electropolishing system for decontamination of underwater surfaces -vibratory decontamination with abrasives

Abstract

Two decontamination processes have been developed to decontaminate the stainless steel components of nuclear power plants. The first process uses an underwater closed electropolishing system for the decontamination of large stainless steel surfaces in flooded systems without loss of electrolyte. Large underwater contaminated areas can be treated with an electropolishing head covering an area of 2 m{sup 2} in one step. The decontamination factors achieved with this technique range between 100 and 1000. The second process consists in the decontamination of nuclear components using vibratory equipment with self-cleaning abrasives generating a minimum quantity of waste. This technique may reach contamination factors similar to those obtained with other abrasive methods (brush abrasion, abrasive blasting, etc...). The obtained decontamination factors range between 5 and 50. Only a small quantity of waste is generated, which is treated and reduced in volume by filtration and evaporation.
Authors:
Benavides, E; Fajardo, M [1] 
  1. Equipos Nucleares, Madrid (Spain)
Publication Date:
Dec 31, 1992
Product Type:
Technical Report
Report Number:
EUR-14524
Reference Number:
SCA: 220200; PA: AIX-24:029682; SN: 93000955713
Resource Relation:
Other Information: PBD: 1992
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; DECONTAMINATION; ABRASIVES; ELECTROPOLISHING; FUEL STORAGE POOLS; STAINLESS STEELS; REACTORS; UNDERWATER; 220200; COMPONENTS AND ACCESSORIES
OSTI ID:
10132091
Research Organizations:
Commission of the European Communities, Luxembourg (Luxembourg)
Country of Origin:
CEC
Language:
English
Other Identifying Numbers:
Other: ON: TI93619298; CNN: Contract Fl1D-0065; Fl1D-0066; TRN: XE9300009029682
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
[43] p.
Announcement Date:
Jul 04, 2005

Citation Formats

Benavides, E, and Fajardo, M. Development and assessment of two decontamination processes: closed electropolishing system for decontamination of underwater surfaces -vibratory decontamination with abrasives. CEC: N. p., 1992. Web.
Benavides, E, & Fajardo, M. Development and assessment of two decontamination processes: closed electropolishing system for decontamination of underwater surfaces -vibratory decontamination with abrasives. CEC.
Benavides, E, and Fajardo, M. 1992. "Development and assessment of two decontamination processes: closed electropolishing system for decontamination of underwater surfaces -vibratory decontamination with abrasives." CEC.
@misc{etde_10132091,
title = {Development and assessment of two decontamination processes: closed electropolishing system for decontamination of underwater surfaces -vibratory decontamination with abrasives}
author = {Benavides, E, and Fajardo, M}
abstractNote = {Two decontamination processes have been developed to decontaminate the stainless steel components of nuclear power plants. The first process uses an underwater closed electropolishing system for the decontamination of large stainless steel surfaces in flooded systems without loss of electrolyte. Large underwater contaminated areas can be treated with an electropolishing head covering an area of 2 m{sup 2} in one step. The decontamination factors achieved with this technique range between 100 and 1000. The second process consists in the decontamination of nuclear components using vibratory equipment with self-cleaning abrasives generating a minimum quantity of waste. This technique may reach contamination factors similar to those obtained with other abrasive methods (brush abrasion, abrasive blasting, etc...). The obtained decontamination factors range between 5 and 50. Only a small quantity of waste is generated, which is treated and reduced in volume by filtration and evaporation.}
place = {CEC}
year = {1992}
month = {Dec}
}