作者: Vincent R. Vermeul , Mark D. Williams , Brad G. Fritz , Rob D. Mackley , Donaldo P. Mendoza
DOI: 10.2172/914686
关键词: Waste management 、 Polyphosphate 、 Materials science 、 Uranium 、 Aquifer 、 Phosphate minerals 、 Autunite 、 Sorption 、 Apatite 、 Nuclear chemistry 、 Groundwater
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 this effort, PNNL will perform bench- and field-scale treatability testing designed to evaluate efficacy injections reduced concentrations in groundwater meet drinking water standards (30 ug/L) situ. This technology works by forming phosphate minerals (autunite apatite) aquifer that directly sequester existing aqueous autunite precipitates apatite sorption long term treatment migrating zone, thus reducing current future concentrations. Polyphosphate injection was selected based on screening as 300-FF-5 Phase III Feasibility Study 300-Area.