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The Stability Of Uranium-Bearing Precipitates Created As A Result Of Ammonia Gas Injections In The Hanford Site Vadose Zone, Alberto Javier Abarca Betancourt
The Stability Of Uranium-Bearing Precipitates Created As A Result Of Ammonia Gas Injections In The Hanford Site Vadose Zone, Alberto Javier Abarca Betancourt
FIU Electronic Theses and Dissertations
Uranium (U) is a crucial contaminant in the Hanford Site. Remediation techniques to prevent contaminant migration of U located in the soils to other important water resources such as the Columbia River are of paramount importance. Given the location of the contaminant in the deep vadose zone, sequestration of U caused by ammonia (NH3) gas injections appears to be a feasible method to decrease U mobility in the contaminated subsurface via pH manipulation, ultimately converting aqueous U mobile phases to lower solubility precipitates that are stable in the natural environment. This study evaluated the stability of those U-bearing …