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Title: Pore Water Extraction Test Near 241-SX Tank Farm at the Hanford Site, Washington, USA

A proof-of-principle test is underway near the Hanford Site 241-SX Tank Farm. The test will evaluate a potential remediation technology that will use tank farm-deployable equipment to remove contaminated pore water from vadose zone soils. The test system was designed and built to address the constraints of working within a tank farm. Due to radioactive soil contamination and limitations in drilling near tanks, small-diameter direct push drilling techniques applicable to tank farms are being utilized for well placement. To address space and weight limitations in working around tanks and obstacles within tank farms, the above ground portions of the test system have been constructed to allow deployment flexibility. The test system utilizes low vacuum over a sealed well screen to establish flow into an extraction well. Extracted pore water is collected in a well sump,and then pumped to the surface using a small-diameter bladder pump.If pore water extraction using this system can be successfully demonstrated, it may be possible to target local contamination in the vadose zone around underground storage tanks. It is anticipated that the results of this proof-of-principle test will support future decision making regarding interim and final actions for soil contamination within the tank farms.
Authors:
 [1] ;  [1] ;  [1] ;  [1]
  1. Washington River Protection Systems, Richland, WA (United States)
Publication Date:
OSTI Identifier:
1105044
Report Number(s):
WRPS--56367-FP-Rev.0
TRN: US1400394
DOE Contract Number:
DE-AC27-08RV14800
Resource Type:
Conference
Resource Relation:
Conference: WM2014 Waste Management Symposia, Phoenix, AZ (United States), 2-6 Mar 2014; Related Information: Number 14168
Research Org:
Hanford Site (HNF), Richland, WA (United States)
Sponsoring Org:
USDOE Office of Environmental Management (EM)
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 54 ENVIRONMENTAL SCIENCES