skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fluidic Sampler. Tanks Focus Area. OST Reference No. 2007

Abstract

Problem Definition; Millions of gallons of radioactive and hazardous wastes are stored in underground tanks across the U.S. Department of Energy (DOE) complex. To manage this waste, tank operators need safe, cost-effective methods for mixing tank material, transferring tank waste between tanks, and collecting samples. Samples must be collected at different depths within storage tanks containing various kinds of waste including salt, sludge, and supernatant. With current or baseline methods, a grab sampler or a core sampler is inserted into the tank, waste is maneuvered into the sample chamber, and the sample is withdrawn from the tank. The mixing pumps in the tank, which are required to keep the contents homogeneous, must be shut down before and during sampling to prevent airborne releases. These methods are expensive, require substantial hands-on labor, increase the risk of worker exposure to radiation, and often produce nonrepresentative and unreproducible samples. How It Works: The Fluidic Sampler manufactured by AEA Technology Engineering Services, Inc., enables tank sampling to be done remotely with the mixing pumps in operation. Remote operation minimizes the risk of exposure to personnel and the possibility of spills, reducing associated costs. Sampling while the tank contents are being agitated yields consistently homogeneous,more » representative samples and facilitates more efficient feed preparation and evaluation of the tank contents. The above-tank portion of the Fluidic Sampler and the replacement plug and pipework that insert through the tank top are shown.« less

Authors:
Publication Date:
Research Org.:
USDOE Office of Environmental Management (EM), Washington, DC (United States)
Sponsoring Org.:
USDOE Office of Environmental Management (EM)
OSTI Identifier:
1248376
Report Number(s):
DOE/EM-0485
TRN: US1601266
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; TANKS; SAMPLERS; RADIOACTIVE WASTES; HAZARDOUS MATERIALS; RADIOACTIVE WASTE MANAGEMENT; PUMPS; MIXING; SAMPLING; DEPTH; REMOTE HANDLING; UNDERGROUND; CLOSURES; SALTS; SLUDGES

Citation Formats

None, None. Fluidic Sampler. Tanks Focus Area. OST Reference No. 2007. United States: N. p., 1999. Web. doi:10.2172/1248376.
None, None. Fluidic Sampler. Tanks Focus Area. OST Reference No. 2007. United States. doi:10.2172/1248376.
None, None. Wed . "Fluidic Sampler. Tanks Focus Area. OST Reference No. 2007". United States. doi:10.2172/1248376. https://www.osti.gov/servlets/purl/1248376.
@article{osti_1248376,
title = {Fluidic Sampler. Tanks Focus Area. OST Reference No. 2007},
author = {None, None},
abstractNote = {Problem Definition; Millions of gallons of radioactive and hazardous wastes are stored in underground tanks across the U.S. Department of Energy (DOE) complex. To manage this waste, tank operators need safe, cost-effective methods for mixing tank material, transferring tank waste between tanks, and collecting samples. Samples must be collected at different depths within storage tanks containing various kinds of waste including salt, sludge, and supernatant. With current or baseline methods, a grab sampler or a core sampler is inserted into the tank, waste is maneuvered into the sample chamber, and the sample is withdrawn from the tank. The mixing pumps in the tank, which are required to keep the contents homogeneous, must be shut down before and during sampling to prevent airborne releases. These methods are expensive, require substantial hands-on labor, increase the risk of worker exposure to radiation, and often produce nonrepresentative and unreproducible samples. How It Works: The Fluidic Sampler manufactured by AEA Technology Engineering Services, Inc., enables tank sampling to be done remotely with the mixing pumps in operation. Remote operation minimizes the risk of exposure to personnel and the possibility of spills, reducing associated costs. Sampling while the tank contents are being agitated yields consistently homogeneous, representative samples and facilitates more efficient feed preparation and evaluation of the tank contents. The above-tank portion of the Fluidic Sampler and the replacement plug and pipework that insert through the tank top are shown.},
doi = {10.2172/1248376},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {9}
}