Multi-Scale Mass Transfer Processes Controlling Natural Attenuation and Engineered Remediation: An IFRC Focused on Hanford’s 300 Area Uranium Plume January 2011 to January 2012 Page: 12 of 41
This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided to UNT Digital Library by the UNT Libraries Government Documents Department.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
existence of a deeper biogeochemically active zone where various terminal electron acceptors are
used and depleted including oxygen, nitrate, manganese (III/IV), iron (III), and sulfate. Reduced
products of anaerobic metabolism including nitrous oxide, methane, and hydrogen gas diffuse
upward from this active zone into overlying oxic groundwaters that host the U(VI) plume.
" Surface geophysical measurements by ERT have shown great promise in monitoring the complex
temporal dynamics and heterogeneity of both meteoric water infiltration and river water intrusion
into the IFRC subsurface environment. A better quantification of these hydrologic vectors is
necessary to forecast U flux from the vadose zone, and predict groundwater compositional
changes resulting from river water intrusion and mixing.
Current Status
At the time of this report writing (2/2012) all ongoing IFRC experimental activities have been terminated,
and remaining project resources are being directed toward i.) analysis of field samples collected in the fall
2011 experimental campaign, ii.) data assimilation activities, iii.) field experiment and smear zone
modeling, and iv.) manuscript preparation.
In the text that follows we will summarize select results of 2011 research targeting the activities and
findings noted above. Our intent is not to be exhaustive, but to be informative in a concise manner. A
Hanford IFRC poster session at the SBR Annual Meeting in April 2012 will describe additional findings.8
Upcoming Pages
Here’s what’s next.
Search Inside
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
Zachara, John M.; Bjornstad, Bruce N.; Christensen, John N.; Conrad, Mark S.; Fredrickson, Jim K.; Freshley, Mark D. et al. Multi-Scale Mass Transfer Processes Controlling Natural Attenuation and Engineered Remediation: An IFRC Focused on Hanford’s 300 Area Uranium Plume January 2011 to January 2012, report, March 5, 2012; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc845004/m1/12/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.