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Title: 100 Area Hanford soil washing treatability tests

Conference ·
OSTI ID:10190693
;  [1]; ; ;  [2];  [3];  [4]
  1. Westinghouse Hanford Co., Richland, WA (United States)
  2. Pacific Northwest Lab., Richland, WA (United States)
  3. Mactec/Dames and Moore (United States)
  4. USDOE Richland Operations Office, WA (United States)
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Soil washing laboratory tests performed at Hanford in support of 100 Area Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) feasibility studies included characterization of soils, physical separation, chemical extraction, and water treatment. Results to date show that < 20 % of the soil is finer than 0.25 mm ({minus}40 mesh). The highest concentration of {sup 60}Co, {sup 152}Eu, and {sup 137}Cs contaminants is generally associated with fine soil particles. However, measurable concentrations of contaminants were found in all sizes of soil particles. In initial testing, attrition scrubbing was generally sufficient to treat soils to meet selected performance levels for {sup 60}Co and {sup 152}Eu. However, more intense attrition scrubbing, autogenous grinding, or chemical extraction was required to enhance removal of {sup 137}Cs. Additional tests and assessment of the feasibility of using soil washing techniques are in progress.

Research Organization:
Westinghouse Hanford Co., Richland, WA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC06-87RL10930
OSTI ID:
10190693
Report Number(s):
WHC-SA-2059; CONF-931095-27; ON: DE94001688; BR: 35AF11201/35AF11202; TRN: 93:025558
Resource Relation:
Conference: Department of Energy environmental remediation conference,Augusta, GA (United States),24-28 Oct 1993; Other Information: PBD: Sep 1993
Country of Publication:
United States
Language:
English

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11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
54 ENVIRONMENTAL SCIENCES
SOILS
REMEDIAL ACTION
CONTAMINATION
HANFORD RESERVATION
WASHING
US SUPERFUND
COBALT 60
EUROPIUM 152
CESIUM 137
SEPARATION PROCESSES
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540230
540250
HEALTH AND SAFETY
RADIOACTIVE MATERIALS MONITORING AND TRANSPORT
SITE RESOURCE AND USE STUDIES