Amy Westesen
Amy Westesen
Biography
Amy Westesen is a chemical engineer in the Nuclear Sciences Division at Pacific Northwest National Laboratory. She has been extensively involved with the Radioactive Waste Test Platform, conducting testing with both actual and simulated Hanford tank waste.
Disciplines and Skills
- Chemical Process Engineering
- Filtration
- Ion Exchange
- Simulant Development
- Tank Waste Chemistry
Education
BS, chemical engineering, Montana State University
Publications
2022
Allred J.R., E.C. Buck, C. Burns, R.C. Daniel, J. Geeting, Z.B. Webb, and A.M. Westesen, et al. 2022. Fiscal Year 2022 Filtration of Hanford Tank 241-AP-101 Supernatant at 16 °C. PNNL-32851. Richland, WA: Pacific Northwest National Laboratory. Fiscal Year 2022 Filtration of Hanford Tank 241-AP-101 Supernatant at 16 °C
Shimskey R.W., J.R. Allred, S.E. Asmussen, S.K. Cooley, R.C. Daniel, L.H. Dinh, and M.K. Edwards, et al. 2022. PNNL FY2021 Sibling Pin Testing Results. PNNL-32783. Richland, WA: Pacific Northwest National Laboratory. PNNL FY2021 Sibling Pin Testing Results
Westesen A.M., E.L. Campbell, A.N. Williams, A.M. Carney, T. Trang-Le, and R.A. Peterson. 2022. Reduced Temperature Cesium Removal from AP-101 Using Crystalline Silicotitanate. PNNL-32911. Richland, WA: Pacific Northwest National Laboratory. Reduced Temperature Cesium Removal from AP-101 Using Crystalline Silicotitanate
Westesen A.M., E.L. Campbell, S.K. Fiskum, and R.A. Peterson. 2022. "Evaluation of load behavior for select analytes in Hanford tank waste." Industrial and Engineering Chemistry Research 61, no. 32:11691-11698. PNNL-SA-172935. doi:10.1021/acs.iecr.2c01656
2021
Allred J.R., J. Geeting, A.M. Westesen, E.C. Buck, and R.A. Peterson. 2021. Fiscal Year 2021 Filtration of Hanford Tank 241-AP-107 Supernatant Samples Obtained at Prototypic Tank Level and Filtered at 16 °C. PNNL-31557. Richland, WA: Pacific Northwest National Laboratory. Fiscal Year 2021 Filtration of Hanford Tank 241-AP-107 Supernatant Samples Obtained at Prototypic Tank Level and Filtered at 16 °C
Dixon D.R., A.M. Westesen, M.A. Hall, C.M. Stewart, J.B. Lang, D.A. Cutforth, and W.C. Eaton, et al. 2021. Vitrification of Hanford Tank Wastes for Condensate Recycle and Feed Composition Changeover Testing. PNNL-32344. Richland, WA: Pacific Northwest National Laboratory. Vitrification of Hanford Tank Wastes for Condensate Recycle and Feed Composition Changeover Testing
Fiskum S.K., A.M. Westesen, A.M. Carney, T. Trang-Le, and R.A. Peterson. 2021. Ion Exchange Processing of AP-105 Hanford Tank Waste through Crystalline Silicotitanate in a Staged 2- then 3-Column System. PNNL-30712. Richland, WA: Pacific Northwest National Laboratory. Ion Exchange Processing of AP-105 Hanford Tank Waste through Crystalline Silicotitanate in a Staged 2- then 3-Column System
Fiskum S.K., A.M. Westesen, and R.A. Peterson. 2021. Spent Crystalline Silicotitanate Storage Study-Post AP-105DF Processing. PNNL-30730 Rev 1. Richland, WA: Pacific Northwest National Laboratory. Spent Crystalline Silicotitanate Storage Study-Post AP-105DF Processing
Fiskum S.K., A.M. Westesen, and R.A. Peterson. 2021. Spent Crystalline Silicotitanate Storage Study-Post AP-105DF Processing. PNNL-30730. Richland, WA: Pacific Northwest National Laboratory. Spent Crystalline Silicotitanate Storage Study-Post AP-105DF Processing
Westesen A.M., S.K. Fiskum, A.M. Carney, E.L. Campbell, T. Trang-Le, and R.A. Peterson. 2021. Reduced Temperature Cesium Removal from AP-107 Using Crystalline Silicotitanate. PNNL-31868. Richland, WA: Pacific Northwest National Laboratory. Reduced Temperature Cesium Removal from AP-107 Using Crystalline Silicotitanate
Westesen A.M., S.K. Fiskum, H.A. Colburn, J.R. Allred, M.R. Smoot, and R.A. Peterson. 2021. Cesium Ion Exchange Testing Using Crystalline Silicotitanate with Hanford Tank Waste 241-AP-107. PNNL-27706 Rev 1. Richland, WA: Pacific Northwest National Laboratory. Cesium Ion Exchange Testing Using Crystalline Silicotitanate with Hanford Tank Waste 241-AP-107
Westesen A.M., S.K. Fiskum, T. Trang-Le, A.M. Carney, R.A. Peterson, M.R. Landon, and K.A. Colosi. 2021. "Small to Full-Height Scale Comparisons of Cesium Ion Exchange Performance with Crystalline Silicotitanate." Solvent Extraction and Ion Exchange 39, no. 1:104-122. PNNL-SA-152428. doi:10.1080/07366299.2020.1831142
2020
Allred J.R., J. Geeting, A.M. Westesen, E.C. Buck, and R.A. Peterson. 2020. Fiscal Year 2020 Filtration of Hanford Tank Waste 241-AP-105. PNNL-30485. Richland, WA: Pacific Northwest National Laboratory. Fiscal Year 2020 Filtration of Hanford Tank Waste 241-AP-105
Campbell E.L., A.M. Westesen, F. Cintron Colon, D. Boglaienko, T.G. Levitskaia, and R.A. Peterson. 2020. "Elemental Characterization of Crystalline Silicotitanate Following Hanford Tank Waste Processing." Separation Science and Technology 56, no. 8:1457-1465. PNNL-SA-152594. doi:10.1080/01496395.2020.1777429
Dixon D.R., A.M. Westesen, M.A. Hall, C.M. Stewart, J.B. Lang, D.A. Cutforth, and W.C. Eaton, et al. 2020. Vitrification of Hanford Tank 241-AP-107 with Recycled Condensate. PNNL-30189. Richland, WA: Pacific Northwest National Laboratory. Vitrification of Hanford Tank 241-AP-107 with Recycled Condensate
Westesen A.M., E.L. Campbell, G.J. Lumetta, S.K. Fiskum, and R.A. Peterson. 2020. Modified Isotherm Modeling to Predict Cs Exchange with Crystalline Silicotitanate in Tank Waste Simulants. PNNL-30212. Richland, WA: Pacific Northwest National Laboratory. Modified Isotherm Modeling to Predict Cs Exchange with Crystalline Silicotitanate in Tank Waste Simulants
Westesen A.M., S.K. Fiskum, T. Trang-Le, A.M. Carney, and R.A. Peterson. 2020. Small to Full Height Scale Comparisons of Cesium Ion Exchange Performance with Crystalline Silicotitanate. PNNL-30142. Richland, WA: Pacific Northwest National Laboratory. Small to Full Height Scale Comparisons of Cesium Ion Exchange Performance with Crystalline Silicotitanate
2019
Dixon D.R., C.M. Stewart, J.J. Venarsky, J.A. Peterson, G.B. Hall, T.G. Levitskaia, and J.R. Allred, et al. 2019. Vitrification of Hanford Tank Waste 241-AP-107 in a Continuous Laboratory-Scale Melter. PNNL-28361. Richland, WA: Pacific Northwest National Laboratory. Vitrification of Hanford Tank Waste 241-AP-107 in a Continuous Laboratory-Scale Melter
Fiskum S.K., A.M. Rovira, H.A. Colburn, A.M. Carney, and R.A. Peterson. 2019. Cesium Ion Exchange Testing Using a Three-Column System with Crystalline Silicotitanate and Hanford Tank Waste 241-AP-107. PNNL-28958, Rev. 0. Richland, WA: Pacific Northwest National Laboratory. Cesium Ion Exchange Testing Using a Three-Column System with Crystalline Silicotitanate and Hanford Tank Waste 241-AP-107
Fiskum S.K., A.M. Rovira, J.R. Allred, H.A. Colburn, M.R. Smoot, A.M. Carney, and T. Trang-Le, et al. 2019. Cesium Removal from Tank Waste Simulants Using Crystalline Silicotitanate at 12% and 100% TSCR Bed Heights. PNNL-28527. Richland, WA: Pacific Northwest National Laboratory. Cesium Removal from Tank Waste Simulants Using Crystalline Silicotitanate at 12% and 100% TSCR Bed Heights
Fiskum S.K., A.M. Rovira, M.G. Cantaloub, A.M. Carney, H.A. Colburn, R.A. Peterson, and B.D. Pierson. 2019. Impact of Crystalline Silicotitanate Particle Size on Cesium Removal Efficiency. PNNL-29273. Richland, WA: Pacific Northwest National Laboratory. Impact of Crystalline Silicotitanate Particle Size on Cesium Removal Efficiency
Fiskum S.K., H.A. Colburn, A.M. Rovira, J.R. Allred, M.R. Smoot, R.A. Peterson, and M.R. Landon, et al. 2019. "Cesium Removal from AP-105 Hanford Tank Waste Using Spherical Resorcinol Formaldehyde Resin." Separation Science and Technology 54, no. 12:1932-1941. PNNL-SA-138559. doi:10.1080/01496395.2019.1577273
Geeting J., J.R. Allred, A.M. Rovira, and R.A. Peterson. 2019. Fiscal Year 2019 Filtration of Hanford Tank AP-107 Supernatant. PNNL-28780. Richland, WA: Pacific Northwest National Laboratory. Fiscal Year 2019 Filtration of Hanford Tank AP-107 Supernatant
Rovira A.M., J. Geeting, J.R. Allred, R.W. Shimskey, C. Burns, R.A. Peterson, and K.A. Colosi. 2019. "Media Comparison of Filtration with Hanford Tank AP-107 Supernate." Separation Science and Technology 54, no. 12:1912-1921. PNNL-SA-138682. doi:10.1080/01496395.2019.1575419
Rovira A.M., S.K. Fiskum, H.A. Colburn, J.R. Allred, M.R. Smoot, R.A. Peterson, and K.A. Colosi. 2019. "Cesium Ion Exchange Testing Using Crystalline Silicotitanate with Hanford Tank Waste 241-AP-107." Separation Science and Technology 54, no. 12:1942-1951. PNNL-SA-138733. doi:10.1080/01496395.2019.1577895
Rovira A.M., S.K. Fiskum, J.R. Allred, J. Geeting, H.A. Colburn, A.M. Carney, and T. Trang-Le, et al. 2019. Dead-End Filtration and Crystalline Silicotitanate Cesium Ion Exchange with Hanford Tank Waste AW-102. PNNL-28783. Richland, WA: Pacific Northwest National Laboratory. Dead-End Filtration and Crystalline Silicotitanate Cesium Ion Exchange with Hanford Tank Waste AW-102
2018
Dixon D.R., C.M. Stewart, J.J. Venarsky, J.A. Peterson, G.B. Hall, T.G. Levitskaia, and J.R. Allred, et al. 2018. Vitrification of Hanford Tank Waste 241-AP-105 in a Continuous Laboratory-Scale Melter. PNNL-27775. Richland, WA: Pacific Northwest National Laboratory.
Fiskum S.K., H.A. Colburn, R.A. Peterson, A.M. Rovira, and M.R. Smoot. 2018. Cesium Ion Exchange Using Crystalline Silicotitanate with 5.6 M Sodium Simulant. PNNL-27587. Richland, WA: Pacific Northwest National Laboratory. Cesium Ion Exchange Using Crystalline Silicotitanate with 5.6 M Sodium Simulant
Fiskum S.K., J.R. Allred, H.A. Colburn, A.M. Rovira, M.R. Smoot, and R.A. Peterson. 2018. Multi-Cycle Cesium Ion Exchange Testing Using Spherical Resorcinol-Formaldehyde Resin with Diluted Hanford Tank Waste 241-AP-105. PNNL-27432. Richland, WA: Pacific Northwest National Laboratory. Multi-Cycle Cesium Ion Exchange Testing Using Spherical Resorcinol-Formaldehyde Resin with Diluted Hanford Tank Waste 241-AP-105
Geeting J., A.M. Rovira, J.R. Allred, R.W. Shimskey, C. Burns, and R.A. Peterson. 2018. Filtration of Hanford Tank AP-107 Supernatant. PNNL-27638;RPT-DFTP-009, Rev. 0. Richland, WA: Pacific Northwest National Laboratory.
Geeting J., J.R. Allred, A.M. Rovira, R.W. Shimskey, C. Burns, and R.A. Peterson. 2018. Crossflow Filtration of Hanford Tank AP-105 Supernatant. PNNL-27085. Richland, WA: Pacific Northwest National Laboratory. Crossflow Filtration of Hanford Tank AP-105 Supernatant
Rovira A.M., S.K. Fiskum, H.A. Colburn, J.R. Allred, M.R. Smoot, and R.A. Peterson. 2018. Cesium Ion Exchange Testing Using Crystalline Silicotitanate with Hanford Tank Waste 241-AP-107. PNNL-27706. Richland, WA: Pacific Northwest National Laboratory. Cesium Ion Exchange Testing Using Crystalline Silicotitanate with Hanford Tank Waste 241-AP-107