This study showed that ammonia gas treatment of sediment is successful in decreasing the mobility of uranium. Even after a short time period of experimentation (800 hours), uranium surface phases indicated changes to less mobile phases. Over time, the pH remained fairly constant, yet some pore water cation/anion concentrations decreased and others remained constant. The results showed that greater ammonia treatment increased the sediment pH and mineral dissolution for both the column and the batch experiments.
Data was compared between batch experiments (vials with no gas flow) and 20-ft long 1-D column (i.e., gas flow) experiments. The goal of this study is to quantify the geochemical changes that occur from ammonia gas treatment at differing concentrations of ammonia gas for different time periods. Previous laboratory studies have shown that ammonia gas treatment of sediment decreases the overall mobility of the uranium, as there is less aqueous and adsorbed U and a greater fraction of U-containing precipitates. Various efforts to remediate this contamination are focused on reducing the transport of U to the accessible environment. Left to Right: Joseph Whitt, Sherille Bradly, Amanda Duran, Lucinda Choules and Danielle Faurieĭanielle Faurie, "Uranium Remediation in Hanford Vadose Zone Sediments by Ammonia Gas Treatment"Īn estimated 202,703 kg of uranium (U) has been released to the ground surface at the Department of Energy’s Hanford Site in Hanford, WA, and is present in the vadose zone and groundwater as a contaminant. Let the Good Times Roll: How Ray Charles Gaining Artistic Control Affected the Income of Black Musicians “The Blacker the Berry, the Sweeter the Juice”: Understanding the Power of Race in Hip-Hop Activism NEH sponsored Music and Society Category Poster Co-winners: Hollow Silica Microspheres for Density-based Bioseparation of a Tumor BiomarkerĬo-Authors: Lichen Xiang, Lingying Li, Ashutosh Chilkoti, Gabriel P. Space Box: Imitation of the NASA’s One Year in Space MissionĬo-Authors: Steven Mathis, Dr. Maria Czyzewska, Ryan Hall, and Mackenzie O’Neill Supervising Professor and/or Collaborators: Dr. The Effects of Source Credibility and Message Frames on Sociopolitical Attitudes URC General Topics Category Poster Co-winners: Undergraduate Research Conference Spring 2016 Winners Luis Gonzalez-Aponte, An Examination of Note Writing Activities on Note Reading Ability in Suzuki Based Ensemble Classes, co-winner, 3 rd placeĭerek Miller, Ball Culture in New York City from 1986 to 1988 and its Roots in African Movement, co-winner, 3 rd place Joshua Mark Rogalski, How Kevin Abstract’s Lyricism Subverts Homonegativity in Rap Music, 2 nd place Marisol Soza, Adding Value to Hydroponic Production with Oyster MushroomsĪlec Chamberlain, Additive Manufacturing Badge DevelopmentĪlberto Limon, Cameron County Community: Social and Epidemiological AssessmentĬlaire Partain, The Source of Rhythm: How Environment and Culture Affect a Taste for Music, 1 st place Honorable Mentions General Topics Category Olaoluwa Aina, Computational Fluid Dynamics Study of an Atmospheric Water GeneratorĮlizabeth Sanchez, Characterization of the role of PIC30 protein as a salicylic acid transporter in Arabidopsis Kristin Dyer, Activity patterns of Hantavirus infected cotton rats URC General Topics Category Poster Co-Winners
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