科技报告详细信息
Treatability Test Plan for 300 Area Uranium Stabilization through Polyphosphate Injection
Vermeul, Vincent R. ; Williams, Mark D. ; Fritz, Brad G. ; Mackley, Rob D. ; Mendoza, Donaldo P. ; Newcomer, Darrell R. ; Rockhold, Mark L. ; Williams, Bruce A. ; Wellman, Dawn M.
关键词: APATITES;    AQUIFERS;    AUTUNITE;    DRINKING WATER;    PHOSPHATE MINERALS;    SORPTION;    STABILIZATION;    TESTING;    URANIUM;   
DOI  :  10.2172/914686
RP-ID  :  PNNL-16571
PID  :  OSTI ID: 914686
Others  :  Other: 830403000
Others  :  TRN: US0803361
美国|英语
来源: SciTech Connect
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【 摘 要 】

The U.S. Department of Energy has initiated a study into possible options for stabilizing uranium at the 300 Area using polyphosphate injection. As part of this effort, PNNL will perform bench- and field-scale treatability testing designed to evaluate the efficacy of using polyphosphate injections to reduced uranium concentrations in the groundwater to meet drinking water standards (30 ug/L) in situ. This technology works by forming phosphate minerals (autunite and apatite) in the aquifer that directly sequester the existing aqueous uranium in autunite minerals and precipitates apatite minerals for sorption and long term treatment of uranium migrating into the treatment zone, thus reducing current and future aqueous uranium concentrations. Polyphosphate injection was selected for testing based on technology screening as part of the 300-FF-5 Phase III Feasibility Study for treatment of uranium in the 300-Area.

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