SANTA FE, NM. U.S.A. SEPTEMBER 13-18, 2015 15th International Conference on the Chemistry and Migration Behaviour of Actinides and Fission Products in the Geosphere Migration 2015 Abstracts Santa Fe Community Convention Center Santa Fe, USA September 13 – 18, 2015 Abstracts Book This Page Intentionally Blank - ii - Background The MIGRATION conferences provide an international forum for the timely exchange of scientific information on chemical processes controlling the migration behaviour of actinides and fission products in natural aquifer systems. Experimental investigations and predictive modelling of these processes are the main topics of the conferences. The information generated from the MIGRATION conferences is the basis for the mechanistic understanding of the migration behaviour of long-lived radionuclides in the geosphere, which is essential for the long-term performance assessment of nuclear waste disposal. The first MIGRATION conference was held in 1987 in Munich, Germany. It was followed by MIGRATION ‘89 in Monterey, California, USA; MIGRATION ‘91 in Jerez de la Frontera, Spain; MIGRATION ‘93 in Charleston, South Carolina, USA; MIGRATION ‘95 in Saint-Malo, France; MIGRATION ‘97 in Sendai, Japan, MIGRATION ‘99 at Lake Tahoe, Nevada, USA, MIGRATION ‘01 in Bregenz, Austria, MIGRATION ‘03 in Gyeongju, Korea, MIGRATION ‘05 in Avignon, France, MIGRATION ‘07 in Munich, MIGRATION ’09 in Kennewick, Washington, USA, Migration 2011 in Beijing, China and Migration 2013 in Brighton, UK. - iii - Scope The MIGRATION conferences focus on recent developments in the fundamental chemistry of actinides, fission and activation products in natural aquifer systems, their interactions and migration in the geosphere, and the processes involved in modelling their geochemical behaviour. The sessions in MIGRATION’15 cover the following areas: A Aquatic chemistry of actinides and fission products 1) Solubility and dissolution 2) Solid solution and secondary phase formation 3) Complexation with inorganic and organic ligands 4) Redox reactions and radiolysis effects 5) Solid-water interface reactions 6) Colloid formation 7) Experimental methods 8) Computational chemistry B Migration behaviour of radionuclides 1) Sorption/desorption phenomena in dynamic systems 2) Diffusion and other migration processes 3) Colloid migration 4) Effects of biological and organic materials 5) Field and large scale experiments 6) Natural analogues C Geochemical and transport modelling 1) Data selection and evaluation 2) Coupling chemistry and transport 3) Development and application of models 4) Model validation 5) Safety assessment and repository concepts Repository and Remediation Programmes in the US International Programmes - iv - Conference Committees International Steering Committee: H. Geckeis (Chairman) (Germany) P. Toulhoat (France) D.L. Clark (USA) V. Vallet (France) S.B. Clark (USA) L. Van Loon (Switzerland) B. Grambow (France) J.-I. Yun (Korea) International Scientific Committee: M.H. Baik (Korea) Liu Chunli (China) U. Berner (Switzerland) T. Ohnuki (Japan) D. Bosbach (Germany) T. Payne (Australia) V. Brendler (Germany) Ch. Poinssot (France) J. Bruno (Spain) D. Reed (USA) N.D. Bryan (UK) T. Sasaki (Japan) P. de Canniere (Belgium) K. Spahiu (Sweden) N. Evans (UK) B.S. Tomar (India) A. Felmy (USA) Wang Xiangke (China) Scientific Secretary: Th. Rabung (Germany) D. Reed (USA) Local Committees: Los Alamos, USA: National Labs/ Universities, USA: P. Dixon N. Hess (PNNL) B. Robinson D. Kaplan (SRNL) R. Roback A. Kersting (LLNL) W. Runde B. Powell (Clemson University) K. Birdsell Carlsbad/Wipp, USA: R. Hardy (NMSU) R. Patterson (DOE-CBFO) A. Van Luik (DOE-CBFO) - v - Contacts Technical and programmatic content/issues Don Reed (Los Alamos National Laboratory) Phone: +1 575 234 5559 Email: [email protected] Thomas Rabung (KIT-INE) Phone: +49 721 608 2546 Email: [email protected] Conference logistics and operation Shannan Yeager (New Mexico Consortium) Phone: +1 505-412-4200 Email: [email protected] - vi - Organization and Support Migration 2015 is being organized by Los Alamos National Laboratory, New Mexico Consortium and KIT/INE Support for conference activities is provided by the German Federal Ministry for Economic Affairs and Energy, the Carlsbad Environmental Monitoring and Research Center, Los Alamos National Laboratory, and the US Department of Energy: Provisions for the opening day reception and poster sessions Carlsbad Environmental Monitoring and Research Center Provisions for the poster sessions Nuclear Waste Partnership, M&O for the WIPP Project Provisions for the poster sessions Student registration subsidy, poster boards and program printing Overall meeting sponsorship and support - vii - This Page Intentionally Blank - viii - List of Abstracts OPENING SESSION (Sunday September 13) Title/Author(s) Page OVERVIEW AND UPDATE OF EM/ER NUCLEAR SITE REMEDIATION AND NUCLEAR 1 WASTE MANAGEMENT Christine Gelles for Monica Regalbuto (INVITED) (DOE-EM) PROGRESS AND CHALLENGES IN REPOSITORY PROJECTS: AN INTERNATIONAL 2 PERSPECTIVE Lawrence H. Johnson (INVITED) (Canada) STATUS OF THE WASTE ISOLATION PILOT PLANT AND ITS RECOVERY 3 Abraham van Luik (INVITED) (Carlsbad Field Office, DOE) MONDAY SESSIONS (September 14) Abstract Title/Author(s) Page SESSION 1 B5: FIELD AND LARGE SCALE EXPERIMENTS INVITED RADIOACTIVE WASTE DISPOSAL: THE SCIENCE AND THE PUBLIC 5 B. Grambow (INVITED) (France) B5-1 THE CURRENT STATUS OF TWO UNIQUE IN-SITU RADIONUCLIDE 6 MIGRATION TESTS AT THE GRIMSEL TEST SITE A. Martin, I. Blechschmidt (Switzerland) B5-2 MIGRATION MECHANISMS OF PLUTONIUM, OTHER ACTINIDES AND 8 FISSION PRODUCTS AT THE LITTLE FOREST LEGACY SITE T.E. Payne, M.J. Comarmond, J.J. Harrison, M.A.C. Hotchkis, C.E. Hughes, M.P. Johansen (Australia) B5-3 SPECTROSCOPY AND SPECIATION OF ACTINIDES IN NATURAL 9 SEAWATER M. Maloubier, C. Moulin, M. Monfort, P. L. Solari, P. Moisy, C. Den Auwer (France) SESSION 2 C2: COUPLING CHEMISTRY AND TRANSPORT C2-1 MODELLING OF IN-SITU DIFFUSION EXPERIMENTS PERFORMED IN 11 ONKALO UNDERGROUND FACILITY M. Voutilainen, P. Kekäläinen, M. Siitari-Kauppi, K. Helariutta, J. Ikonen, J. Sammaljärvi, A. Poteri, P. Andersson, K. Nilsson, J. Byegård, M. Skålberg, J. Kuva, P. Pitkänen, K. Kemppainen, J. Liimatainen, I. Aaltonen, L. Koskinen (Finland, Sweden) C2-2 POROSITY IMPAIRMENT INDUCED BY DIFFUSION OF REACTIVE 13 FLUIDS IN POROUS MATERIALS: EXPERIMENT APPROACH AND MODELING I. Fatnassi, S. Savoye, P. Arnoux, O. Bildstein, V. Detilleux, C. Wittebroodt, P. Gouze (France) - ix - C2-3 COUPLED GROUNDWATER FLOW AND REACTIVE TRANSPORT 15 REGIONAL-SCALE SIMULATIONS OF THE EVOLUTION OF GROUNDWATER CHEMISTRY FOR A GEOLOGICAL SPENT NUCLEAR FUEL REPOSITORY S. Joyce, L. Hartley, H. Woollard, N. Marsic, M. Sidborn, B. Gylling, I. Puigdomenech, L. Koskinen (UK, Sweden, Finland) C2-4 ROCK FRACTURE CLOSURE MEDIATED BY PRESSURE SOLUTION IN A 17 COUPLED FLOWING CHANNEL–ROCK MATRIX–STAGNANT ZONE SYSTEM B. Mahmoudzadeh, L. Liu, L. Moreno, I. Neretnieks (Sweden) SESSION 3 SPECIAL US SESSION (I) REPOSITORY SCIENCE SUS-1 "RESET" OF UNITED STATES NUCLEAR WASTE MANAGEMENT 19 STRATEGY AND POLICY R. Ewing (INVITED) (USA) SUS-2 WIPP, DE-COMINGLING, AND THE US REPOSITORY PATH FORWARD 20 B. Robinson (USA) SUS-3 ACTINIDE SOLUBILITY AND SPECIATION IN A SALT REPOSITORY: 21 CURRENT STATUS D. Reed, M. Altmaier (USA, Germany) SUS-4 INDEPENDENT MONITORING OF THE 2014 RADIATION RELEASE 23 FROM THE WASTE ISOLATION PILOT PLANT IN NEW MEXICO, USA- AN OVERVIEW P. Thakur, B.G. Lemons, S. Ballard R. Hardy (USA) SESSION 4 SPECIAL US SESSION (II) CONTAMINATED SITES SUS-5 MINERALOGY OF PLUTONIUM AT THE HANFORD SITE 25 E. Buck (INVITED), D.D. Reilly, A.R. Felmy, K.J. Cantrell (USA) SUS-6 ACTINIDE ENVIRONMENTAL SITES AT LANL: CHALLENGES AND 26 OPPORTUNITIES B.C. Roback, H. Boukhalfa, K. Birdsell, D. Katzman (USA) SUS-7 USING ADVANCED MODELING TECHNIQUES TO SEE BENEATH THE 27 EARTH’S SURFACE AND IMPROVE ENVIRONMENTAL CLEANUP EFFORTS P. Dixon, M. Freshley, V. Freedman, D. Moulton, H. Wainwright, S. Finsterle, C. Steefel, R. Seitz, J. Marble (USA) SUS-8 SCIENCE-BASED CLEANUP OF ROCKY FLATS. TEN YEARS LATER, 28 WHAT HAVE WE LEARNED? D.L. Clark (USA) SESSION 5 POSTER SESSION I PA2: SOLID SOLUTION AND SECONDARY PHASE FORMATION PA2-1 RETENTION OF TRIVALENT ACTINIDES BY STRUCTURAL 29 INCORPORATION M. Schmidt, S. Peschel, S. Hofmann, C. Walther, D. Bosbach, T. Stumpf (Germany) - x - PA2-2 MINERALOGY AND URANIUM-BINDING ENVIRONMENT IN THE 30 RHIZOSPHERE OF WETLAND SOILS D.I. Kaplan, P. Jaffe, D. Li, M. Bowden, J. Seaman, R. Kukkadapu, B. Arey, A. Dohnalkova, T. Varga (USA) PA2-3 EXPERIMENTAL AND SIMULATION STUDY OF PHASE EQUILIBRIUM 31 IN THE SYSTEM (Ba,Sr,Ra)SO4 + H2O M. Klinkenberg, F. Brandt, J. Weber, V.L. Vinograd, K. Rozov, D. Kulik, B. Winkler, D. Bosbach (Germany, Switzerland) PA2-4 TRIVALENT ACTINIDES RETENTION BY IRON (HYDR)OXIDES 33 N. Finck, S. Nedel, K. Didereksen, M.L. Schlegel (Germany, Denmark, France) PA5: SOLID-WATER INTERFACE REACTIONS PA5-1 RETENTION OF CESIUM AND STRONTIUM BY SORPTION ON 35 URANOPHANE A. Espriu, J. de Pablo, J. Giménez, I. Casas (Spain) PA5-2 REMOVAL OF U(VI) USING GRAPHENE NANOMATERIALS STUDIED 36 BY BATCH AND SPECTROSCOPY TECHNIQUES X.K. Wang (China) PA5-3 THERMODINAMIC STUDIES ON EUROPIUM(III) BEHAVIOUR ON 37 THERMALLY AGED CALLOVIAN-OXFORDIAN ARGILLITE P. Parant, M.V. Di Giandomenico, L. Mercier, X. Crozes (France) PA5-4 URANIUM BEHAVIOUR IN HIGH pH CEMENTITIOUS SYSTEMS 38 R. Telchadder, R. Hibberd, P. Bots, G. Law, K. Morris, N. Bryan, K. Smith,