soil-groundwater

Sponsor – DOE FIU’s Applied Research Center (ARC) is supporting the U.S. Department of Energy’s Savannah River Site in remediating uranium in F/H area seepage basins. The F/H area seepage basins received approximately 1.8 billion gallons of acidic (pH 3.2-5.5) waste solutions contaminated with radionuclides and dissolved metals. The acidic nature of the basin waste solutions caused the mobilization of metals and radionuclides, resulting in contaminated groundwater plumes. The major…

Sponsor – DOE FIU’s Applied Research Center (ARC) is supporting the U.S. Department of Energy’s Hanford Site in developing a strategy to improve the efficiency of the uranium stabilization process through polyphosphate injection technology. Tripolyphosphate injected in aqueous solutions in order to sequester uranium, undergoes hydrolysis to orthophosphate forms, which serve as readily available nutrients for the various micro-organisms that thrive under these specific conditions and may even lead to…

Sponsor – DOE FIU’s Applied Research Center (ARC) is supporting the U.S. Department of Energy’s Hanford Site in developing a strategy to improve the efficiency of subsurface uranium stabilization through pH manipulation via NH3 gas injection. This work is focused on long-lived uranium contamination, which is one of the key contaminants of concern for the Hanford site. Injection of reactive gases such as NH3 is an innovative remediation technology shown…