Radioactive Waste and Clean-Up Division Scientific Output 2004

Radioactive Waste and Clean-up Division Scientific Output 2004

Contents

Waste & Evacuation ...... 1 Valorisation ...... 7 Site Restoration ...... 8 Nuclear Chemistry and Services ...... 10

Waste & Evacuation

Publications W. Bastiaens, F. Bernier, M. Buyens, M. Demarche, X.L. Li, J.-M. Linotte, J. Verstricht, "The connecting gallery. The extension of the HADES underground research facility at Mol, Belgium." EURIDICE REPORT 03-294, December 2003.

B. Laenen, M. De Craen, "Eogenetic siderite as an indicator for fluctuations in sedimentation rate in the Oligocene Boom Clay Formation (Belgium).", Publ.: ELSEVIER, Sedimentary Geology 163 (2004) pp. 165 – 174.

X. Sillen, J. Marivoet, W. Cool, P. de Preter, "Testing safety and performance indicators in an assessment of the long-term performance of the geological disposal of spent fuel in Boom Clay", Proceedings: ICEM '03: The 9th International Conference on Environmental Remediation and Radioactive Waste Management. (on CD, session 48). 2003.

F. Mees, R. Swennen, M. Van Geet, P. Jacobs, "Applications of x-ray computed tomography in the geosciences", Geological Society special publication no. 215 (243p.) pp. 1 – 6, Geological Society, London, UK, 2003.

M. Van Geet, D. Lagrou, R. Swennen, "Porosity measurements of sedimentary rocks by means of microfocus x-ray computed tomography ( CT)", Geological Society special publication no. 215 (243p.) pp. 51 – 60, Geological Society, London, UK, 2003.

M. Van Geet, A. Vervoort, M. Wevers, R. Swennen, S. Roels, E. Sellers "Recent advances of X-ray CT and its applications for rock material.", X-ray CT for Geomaterials; Soils, Concrete, Rocks - Otani & Obara (eds.). Kumamoto, Japan, 2004.

M. De Craen, M. Van Geet, L. Wang, M. Put, "High sulphate concentrations in squeezed Boom Clay pore water: evidence of oxidation of clay cores.", Physics and Chemistry of the Earth 29 (2004) pp. 91 - 103. ELSEVIER, Amsterdam, The Netherlands, 2004.

C. Cachoir, K. Lemmens "Static dissolution of alpha-doped UO2 in Boom Clay conditions: Preliminary results." Conf. : Scientific Basis for Nuclear Waste Management, MRS 2003, Kalmar, Sweden, 15-18 June 2003. Proceedings : Mat. Res. Soc. Symp. Vol. 807, 2004, pp. 59 – 64.

F. Rorif, E. Valcke, M.A. Glaus, "The effect of cellulose degradation products on the solubility and sorption of Pu and Am in alkaline-plume-affected and in unaffected Boom clay" Conf. : Scientific Basis for Nuclear Waste Management, MRS 2003, Kalmar, Sweden, 15-18 June 2003. Proceedings : Mat. Res. Soc. Symp. Vol. 807, 2004, pp. 633 – 638.

B. Kursten, F. Druyts, " Pitting Studies Under Anoxic Conditions on Candidate Container Materials AISI 316L hMo and UHB 904L for The Disposal of HLW in Argillaceous Formations" Conf.: Scientific Basis for Nuclear Waste Management, MRS 2003, Kalmar, Sweden, 15-18 June 2003. Proceedings: Mat. Res. Soc. Symp. Vol. 807, 2004, pp. 495 – 503.

www.sckcen.be Operational Office: Boeretang 200, B-2400 Mol – Scientific Report 2004

W. Bastiaens, M. Demarche, "The extension of URF HADES: realization & observations" Conf.: Waste Management 2003 (WM'03), Tucson, Arizona, 23-27 February, 2003. Proceedings: WM'03 Conference.

J. Marivoet, "The role of hydrology in radioactive waste disposal systems." Proceedings: Water Stories, workshop held on occasion of the retirement of Prof.em. Dr. ir. André Van der Beken, Brussels, 30 September 2004. pp. 59 – 63.

N. Maes, G. Delécaut, P. De Cannière, L. Wang, "Effect of reducing agents on the uranium concentration above uranium (IV) amorphous precipitate in Boom Clay pore water." Pub.: Radiochim. acta 92, 545-550 (2004).

Presentations F. Druyts, E. Alves, C.H. Wu, "Methods for the mitigation of the chemical reactivity of Beryllium in steam." Conf.: 6th International Beryllium Workshop, Tokyo, Japan, 1–6 December 2003.

F. Druyts, D. Mallants, X. Sillen, P. Van Iseghem, "Belgian Research on Fusion Beryllium Waste." Conf.: 6th International Beryllium Workshop, Tokyo, Japan, 1–6 December 2003.

J. Marivoet, S. Voinis, P. Lalieux, P. De Preter, "Functions of Argillaceous Media in Deep Geological Disposal and their Handling in a Safety Case." Conf. : NEA Workshop Geosphere Stability, Braunschweig, Germany, 9–11 December 2003.

M. Van Geet, I. Deniau, C. Largeau, C. Bruggeman, A. Maes, A. Dierckx, "Presence and evolution of natural organic matter in the Boom Clay" Conf. : NEA Workshop Geosphere Stability, Braunschweig, Germany, 9–11 December 2003.

D. Mallants, "Evaluation of Gas Generation on Repository Performance in Case of Deep Disposal of LLW & Post-closure performance assessment for surface disposal of LLW containing inorganic non- radiological components." Training course: IAEA training course in the framework of the TC with Slovenia Performance assessment for low-level waste disposal, Mol, 22-27 March 2004.

E. Valcke, S. Smets, S. Labat, P. Van Iseghem, N. Godon, P. Jollivet, N. Jockwer, K. Wieczorek, "CORALUS : An integrated in situ corrosion test on alpha-active HLW glass. (Poster)" Conf.: Euradwaste 2004, Luxembourg, 29–31 March 2004.

G. Volckaert, F. Bernier, X. Sillen, M. Van Geet,J.-C. Mayor, I. Göbel, P. Blümling,B. Frieg, K. Su, "Similarities and Differences in the Behaviour of Plastic and Indurated Clays" Conf.: Euradwaste 2004, Luxembourg, 29–31 March 2004.

B. Kursten, "Corrosion Evaluation of Metallic Materials for Long-Lived HLW/Spent Fuel Disposal Containers – review of 15-20 years of research." Conf.: Euradwaste 2004, Luxemburg, 29-31 March 2004.

M. Van Geet, W. Bastiaens, G. Volckaert, M.V. Villar, M. Mingarro, A. Gens, B. Vallejan, M. Carron- charles, C. Imbert, F. Plas, "The RESEAL project. A large scale in situ demonstration test for repository sealing in an argillaceous host rock" Conf.: Euradwaste 2004, Luxemburg, 29-31 March 2004.

P. Van Iseghem, "GLAMOR. A Critical Evaluation of the Dissolution Mechanisms of High-Level Waste Glasses in Conditions of Relevance for Geological Disposal." Conf.: MRS 2004, San Francisco, 13-16 April 2004.

C. Cachoir, K. Lemmens "Dissolution tests with alpha-doped UO2 in Boom Clay conditions: results from static and dynamic tests." Conf. : Spent fuel workshop 2004, Chicago, 19-21 April 2004.

D. Jacques, P. Seuntjens, J. Simunek, D. Mallants, M. Th. Van Genuchten, "Effect of increased salt concentration on cadmium leaching in acid sandy soils." Conf.: EGU first General assembly 2004, Nice, France, 25-30 April 2004. Pub.: Geophysical Research Abstracts, Vol. 6, 02979, 2004.

D. Jacques, J. Simunek, D. Mallants, M. Th. Van Genuchten, "Reactive transport modelling in the www.sckcen.be Operational Office: Boeretang 200, B-2400 Mol – Scientific Report 2004 vadose zone with coupled PHREEQC – HYDRUS1D code." Conf.: EGU first General assembly 2004, Nice, France, 25-30 April 2004. Pub.: Geophysical Research Abstracts, Vol. 6, 02940, 2004.

D. Mallants, N. Maes, D. Jacques, I. Thys, E. Smolders, H. Vandenhove, L. Diels, "Laboratory testing of uranium removal efficiency of reactive media for use in groundwater remediation. (Poster)" Conf.: EGU first General assembly 2004, Nice, France, 25-30 April 2004. Pub.: Geophysical Research Abstracts, Vol. 6, 07381, 2004.

D. Mallants, H. Vandenhove, "Modelling radionuclide and heavy metal mobility in uranium mill tailings in Kyrgystan." Conf.: Subsurface radionuclide migration-Case studies organized by ITC School of underground waste storage and disposal & EAWAG Swiss Federal Institute for Environmental Science and Technology, Meiringen, Switzerland, 5-7 May 2004.

D. Jacques, J. Simunek, D. Mallants, M. Th. Van Genuchten, "A general code to model multicomponent reactive transport for variably-saturated porous media." Conf.: The Third International Conference "Interfaces against pollution", Jülich, Germany, 24-27 May 2004.

D. Jacques, K. Lemmens, P. Van Iseghem, "Geochemical modelling of SON68 and SM539 glass dissolution and gel formation at different temperatures using a solid solution model." Conf.: Goldschmidt Conference, Copenhagen, Danmark, 5-11 June 2004.

P. Van Iseghem, N. Maes, M. Van Geet, L. Wang, M. De Craen, H. Moors, P. De Canniere, D. Jacques, K. Lemmens, C. Cachoir, S. Salah, "The role of Geochemistry in the research on geological disposal of high-level radioactive waste in a deep Boom Clay in Belgium." Conf.: Goldschmidt Conference, Copenhagen, Danmark, 5-11 June 2004.

D. Jacques, J. Simunek, D. Mallants, P. Seuntjens, M. Th. Van Genuchten, "Geochemical coupled transport code for variably saturated flow conditions: Metal leaching in a podzol." Conf.: Goldschmidt Conference, Copenhagen, Danmark, 5-11 June 2004.

F. Rorif, J. Fuger, J.F. Desreux, "Thermochemistry of selected sodium neptunyl carbonates. (Poster)" Conf.: The Sixth International Conference on Nuclear and Radiochemistry (NRC6), Aachen, Germany, 29August – 03 September 2004.

D. Jacques, S. Oswald, T. Roose, A. Schenpf, P. Seuntjens, W. Van-Beinum, F. Gérard, G. Kirk, H. Nietfeld, B. Jaillard, "Validation of coupled speciation-transport models to describe root-uptake." Conf.: Rhizosphere 2004, Perspectives and Challenges - A tribute to Lorenz Hiltner, 2004, Munich, Germany, 12-17 September.

J. Marivoet, "Disposal of high level radioactive waste in clay formations: the role of the geology for the long term safety" Conf.: UGV Symposium: Underground waste Disposal. Utrecht, The Netherlands 24 September 2004.

J. Marivoet, "The role of hydrology in radioactive waste disposal systems." Conf.: Emiraat Prof. André Van der Beken, VUB, Brussels, Belgium, 30 September 2004.

D. Mallants, "Performance/safety assessment studies for disposal of LILW/HLW." Training course: Cursus PA in het kader van de MEZ bilaterale samenwerking met Oosteuropa, SCK Mol, 27 September – 1 October 2004.

D. Mallants, "Fundamentals of chemical transport: basic equations and parameters." Training course: Cursus PA in het kader van de MEZ bilaterale samenwerking met Oosteuropa, SCK Mol, 27 September – 1 October 2004.

D. Mallants, "LLW management in Belgium" Conf.: A two-day trade mission was held in Bucharest, organised by BCE Network v.z.w. BCE Network (Central and Eeast European Network) is an interface between government and the (Flemish) private sector, providing a platform for companies interested in Central and Eastern Europe development, in light of the EU enlargement. BCE focuses on four sectors: “Environment”, “Economic and Regional Development”, “Transport and Infrastructure”, and “Culture”. Romania, 7-8 October 2004.

www.sckcen.be Operational Office: Boeretang 200, B-2400 Mol – Scientific Report 2004 D. Jacques, J. Simunek, M. Th. Van Genuchten, M. Schaap, E.D. Mattson, "Recent Development in the Hydrus Software: Overland Flow and Biogeochemical Modules." Conf.: SAHRA 4th Annual meeting, Albuquerque, New Mexico, 13 – 15 October 2004.

A. Sneyers, "The integrated project NF-PRO. Objectives, scope and project structure." Conf.: Meeting of the FP6 consultative committee Euratom - Fission, Brussels, 21 October 2004.

D. Mallants, "Gas generation and potential impact on repository performance." Conf.: EURIDICE- SCK•CEN-NIRAS/ONDRAF Information Exchange meeting bituminised waste, Mol, 26 October 2004.

E. Valcke, R. Gens, F. Rorif, A. Sneyers, P. Van Iseghem, "The effect of radiolytic and chemical degradation products." Conf.: EURIDICE-SCK•CEN-NIRAS/ONDRAF Information Exchange meeting bituminised waste, Mol, 26 October 2004.

E. Valcke, X. Li, E. Weetjens, H. Moors, F. Bernier, P. De Canniere, J. Marivoet, L. Ortiz, F. Rorif, X. Sillen, A. Sneyers, M. Van Geet, P. Van Iseghem, G. Volckaert, A. Dierckx, R. Gens, H. Van Humbeeck, "Processes related to the uptake of water and release of NaNO3 by Eurobitum." Conf.: EURIDICE-SCK•CEN-NIRAS/ONDRAF Information Exchange meeting bituminised waste, Mol, 26 October 2004.

F. Rorif, E. Valcke, "Evolution of the characteristics of the Eurobitum matrix." Conf.: EURIDICE- SCK•CEN-NIRAS/ONDRAF Information Exchange meeting bituminised waste, Mol, 26 October 2004.

G. Volckart, F. Bernier, M. Demarche, P. Lalieux, "The construction and the experimental programme of the URF HADES at Mol, Belgium." Conf.: International workshop on Honoronobe underground research laboratory project, Tokyo, 27 October 2004.

M. De Craen, "Site characterisation in plastic clays: specific example of the Boom Clay" Training course: Methodology for geological disposal. The fundamentals of geological disposal, Meiringen, 23- 26 November 2004.

Reports M. Mazurek, F. Joe Pearson, G. Volckaert, H. Bock, "Features, Events and Processes Evaluation Catalogue for Argillaceous Media." NEA-4437, OECD 2003.

J. Alonso (Coordinator), D.A. Becker, R. Storck, F. Besnus, D. Pellegrini, C. Serres, L. Johnson, J. Hart, J. Marivoet, X. Sillen, T. Vieno, H. Nordman, B. Petkovsek, "Bentonite barriers in integrated performance assessment (Benipa). Final report." Contract No FIKW-CT-2000-00015. EUR-21023, 2004.

N. Maes, L. Wang, G. Delécault, T. Beauwens, M. Van Geet, M. Put, E. Weetjens, J. Marivoet, J. Van der Lee, P. Warwick, A. Hall, G. Walker, A. Maes, C. Bruggeman, D. Bennett, T. Hicks, J. Higgo, D. Galson, "Migration Case Study : Transport of radionuclides in a Reducing Clay Sediment (TRANCOM 2)" Contract No FIKW-CT-2000-00008. EUR-21022, 2004.

M. Van Geet, N. Maes, W. Bastiaens, H. Moors, G. Volckaert, M. Put, F. Plas, C. Imbert, M. Carron- Charles, P. Maugis, M.V. Villar, M. Mingarro, M. Garcia-Gutierrez, A. Gens, B. Vallejan, “A large scale in situ demonstration test for repository sealing in an argillaceous host rock - phase 2 - RESEAL 2”, 5th Euratom framework programme 1998-2002. Key Action: Nuclear Fission. EC contract : FIKW-CT2000- 00010, 3rd scientific report, September 2002 – August 2003. R-3821, January 2004.

M. Van Geet, N. Maes, W. Bastiaens, H. Moors, G. Volckaert, M. Put, F. Plas, C. Imbert, M. Carron- Charles, P. Maugis, M.V. Villar, M. Mingarro, M. Garcia-Gutierrez, A. Gens, B. Vallejan, “A large scale in situ demonstration test for repository sealing in an argillaceous host rock - phase 2 - RESEAL 2”, EC contract : FIKW-CT2000-00010, 6th management report, March 2003 - September 2003. R-3822, January 2004.

P. Borgermans, "SOMOS - Safety and Operational Monitoring of nuclear waste repositories with fibre Optic sensing Systems." MID TERM REPORT. Reporting period: From 2001-12-01 to 2003-05-31. Contract N° : FIKW-CT2001-00190. R-3824, October 2003.

A. Sneyers, G. Volckaert, "Regulatory framework and procedures for quality control and waste acceptance applicable to conditioned radioactive waste repatriated from foreign reprocessing facilities www.sckcen.be Operational Office: Boeretang 200, B-2400 Mol – Scientific Report 2004 to Belgium." Consultant report drafted on request by the Mitsubishi Corporation in the framework of contract RWMC FY2003. R-3805, December 2003.

D. Mallants, G. Volckaert, S. Labat, "Parameter values used in the performance assessment of the disposal of low level radioactive waste at the nuclear zone Mol-Dessel. Volume 1, 2 and 3" Contract with NIRAS/ONDRAF KNT 90.00.1371. R-3521rev.1, December 2003.

L. Hardy, D. Mallants, G. Volckaert, "Hydrogeological model for the safety evaluation: groundwater flow and transport calculations for the nuclear zone Mol-Dessel. Surface disposal of category A waste." Report to NIRAS/ONDRAF contract KNT 90.00.1371.01 R-3550rev.1, December 2003.

V. Moise, P. Van Iseghem, "General Overview of Mixed Waste. Addressing performance assessment studies on the Belgian waste types."General Report I-34, January 2004.

D. Mallants, A. Dierckx, G. Volckaert, L. Wang, T. Zeevaert, "Impact assessment of the radium storage facility of Umicore at the Olen site. Part 1: Safety data and migration study. + Appendices." Contractnr.: E023017. R-3478, January 2004.

M. Gedeon, D. Mallants, "Hydrogeological model for the safety evaluation. Groundwater flow and transport calculations for the nuclear zone Mol-Dessel. Surface disposal of category A waste." Restricted Contract Report. Contract CO.90.00.1371.03. R-3797, January 2004.

P. Meynendonckx, A. Sneyers, "The HADES Underground Research Facility Information brochures on the HADES URF." RWMC FY2003 Consultation 1 Task 2 Special Report 5. R-3825, January 2004.

J. Verstricht, "IAEA Expert Group on Safeguards for Final Disposal of Spent Fuel in Geological Repositories." Belgian Contribution. IAEA Task JNT C 01273 BEL. R-3838, February 2004.

L. Ortiz, "Utilization of HADES URF for other purposes than for R&D on radioactive waste disposal." RWMC FY2003 Consultation 1 Task 2 Special Report 2.5.2. R-3830, February 2004.

A. Sneyers, "Report on the use FAQs for public information purposes." RWMC FY2003 Consultation 1 Task 2 Special Report 2.8. R-3835, February 2004.

D. Mallants, J. Diederik, T. Zeevaert, "Evaluatie van de mogelijke impact van de berging van zeer laagactief afval aan de oppervlakte in de nabijheid van de D1-stortplaats van UMICORE-OLEN" Contract to NIRAS/ONDRAF CO 90.02.1633.00. DISCLAIMER : This report was prepared on behalf of NIRAS. The viewpoints presented and conclusions reached are those of the autor(s) and do not necessarily represent those of NIRAS, or any other party involved in the BRAEM project. R-3772, March 2004.

F. Druyts, "Corrosion of fusion-specific waste material in a clay geological repository. Status report for the year 2003." Contract 90-02-1646-07 UT-BER. R-3848, March 2004.

G. Volckaert, "Radiological impact assessment for human intrusion scenarios. Surface disposal of category A waste." Contract NIRAS/ONDRAF KNT.90.00.1371.04. R-3769, March 2004.

D. Mallants, G. Volckaert, "Gedetailleerde beschrijving van het bergingssysteem en zijn omgeving. Veiligheidsstudies voor berging van radioactief afval van categorie A" Report to NIRAS/ONDRAF Contract KNT 90 98 1073. R-3321rev.2, April 2004.

X. Li, F. Bernier, "Characterisation and compatibility with the disposal medium of Eurochemic reprocessing waste forms Interaction swelling bitumen – host rock: Scoping calculations." Work performed in the frame of EUROCOMPAT, Task BV6 (RP.WD.027, WP3) of Annex 2 of NIRAS/ONDRAF contract CCHO-90/123-2. R-3852, April 2004.

A. Sneyers, G. Volckaert, "Waste management of ILW and HLW related to geological disposal." RWMC FY2003 Consultation 1 Task 2 Special Report 2.1. R-3831, May 2004.

A. Sneyers, G. Volckaert, "Overview of organisations in Belgium producing radioactive waste." RWMC FY2003 Consultation 1 Task 2 Special Report 2.3. R-3832, May 2004.

www.sckcen.be Operational Office: Boeretang 200, B-2400 Mol – Scientific Report 2004 A. Sneyers, G. Volckaert, "Status of disposal of LLW, ILW and HLW in Belgium." RWMC FY2003 Consultation 1 Task 2 Special Report 2.4. R-3833, May 2004.

L. Ortiz, "Summary information on the Belgian R&D programme on geological disposal." RWMC FY2003 Consultation 1 Task 2 Special Report 2.6. R-3828, May 2004.

A. Sneyers, G. Volckaert, "Report on the institutional framework and the role of the implementing organisation NIRAS/ONDRAF applicable to radioactive waste management in Belgium." RWMC FY2003 Consultation 1 Task 2 Special Report 2.7. R-3834, May 2004.

D. Mallants, D. Jacques, "Performance Assessment for Deep Disposal of Low and Intermediate Level Short-Lived Radioactive Waste in Boom Clay. Geological disposal of category A waste." Contract to NIRAS/ONDRAF KNT.90.98.1072.01. R-3793, May 2004.

M. Van Geet, "Characterisation of Boom Clay organic matter: mobile and immobile fraction. Interim report for the period 2001-2003." D.S. 2.82. R-3884, June 2004.

M. Van Geet, N. Maes, W. Bastiaens, H. Moors, G. Volckaert, M. Put, F. Plas, C. Imbert, M. Carron- Charles, P. Maugis, M.V. Villar, M. Mingarro, M. Garcia-Gutierrez, A. Gens, B. Vallejan, “A large scale in situ demonstration test for repository sealing in an argillaceous host rock - phase 2 - RESEAL 2”, EC contract : FIKW-CT2000-00010, 7th management report, September 2003 – February 2004. R- 3903, June 2004.

D. Mallants, "Special report on the status of the LLW programme in Belgium." Consultant report drafted on request by the Mitsubishi Corporation in the framework of contract RWMC FY2003 Consultation 1 Task 2 Special Report 2, R-3809, June 2004.

I. Wemaere, J. Marivoet,S. Labat,T. Maes, R. Beaufays, "Zoersel borehole of the hydro/96neb campaign: technical aspects and hydrogeological investigations. Geological disposal of conditioned high-level and long-lived radioactive waste." Contractnr: CO 90 98 1685.00, R-3892, June 2004.

M. De Craen, L. Wang, E. Weetjens, "Natural evidence on the long-term behaviour of trace elements and radionuclides in the Boom Clay." Final report of DS 2.9 for the period 2000-2003. Contract NIRAS: CCHO 2000-773/00/00, KNT 90 01 1467. R-3926, July 2004.

I. Wemaere, J. Marivoet, S. Labat,T. Maes, R. Beaufays, "Rijkevorsel borehole of the hydro/96neb campaign: technical aspects and hydrogeological investigations. Geological disposal of conditioned high-level and long-lived radioactive waste." Contractnr: CO 90 98 1044.05, R-3930, September 2004.

M. De Craen, L. Wang, M. Van Geet, H. Moors, "Geochemistry of Boom Clay Pore Water at the Mol site – status 2004" BLG-990, September 2004.

L. Wang, P. De Cannière, D. Jacques, H. Moors, M. Van Gompel, M. Aertsens, "Experimental and modelling studies of Boom Clay exposed to an alkaline perturbation." Final Report to NIRAS/ONDRAF, DS 2.13 (2002-2003). Contract CO-90 01 1467.05, R-4019, September 2004.

M. Aertsens, N. Maes, K. Lemmens, "Characterization and compatibility with the disposal medium of Cogema and Eurochemic reprocessing waste forms. Silica retention in Boom Clay, FoCa clay and M2. Thematical report for WP1.exp3 of RP.WD.008 for the period January 2000 - June 2003" Tasks VM-6 and GV8 of NIRAS/ONDRAF contracts N° CCHO-90/123-1 and CCHO-90/123-2 (vitrified waste), R- 3866, September 2004.

F. Druyts, "Interaction of Be12Ti with air and steam at HCPB BB relevant temperatures. Interim report on the results in air." SCK contract CO-90-02-1646-13, R-4038, October 2004.

F. Druyts, "Chemical reactivity of dust and flakes and D mobilisation experiments from co-deposited layers – Reactivity of Be, W, Mo, and CFC." Final report for ITER Task TW0-T438/06, R-4039, October 2004. www.sckcen.be Operational Office: Boeretang 200, B-2400 Mol – Scientific Report 2004

D. Mallants, "Acceptability of beryllium waste in near surface waste disposal sites." Final report of Task TW1-TSW-002-D6, R-4043, November 2004.

D. Mallants, E. Weetjens, L. Wang, "Evaluation of the consequences of inorganic non-radiological components in case of subsurface disposal of low and intermediate level short-lived radioactive waste at the nuclear zone of Fleurus-Farciennes. Geological disposal of category A waste." Contract to NIRAS/ONDRAF KNT.90.02.1620.00. R-3782, November 2004.

A. Sneyers, G. Volckaert, "Information update concerning geological disposal programme in Belgium." RWMC FY2003 Consultation 1. R-3837, November 2004.

J. Marivoet, "A Study on Upgrading Safety Assessment Technology." Case Survey of Handling of Uncertainties in Data, Models and Scenarios for Safety Assessment (Belgium) RWMC FY2004 Consultation 1. R-4058, December 2004.

Valorisation

Publications L. Denissen, V. Massaut - IRDIT project: Innovative Remote Dismantling Techniques – Remotely controlled water jet cutting tool used in a small PWR (BR3) (052/04-02) Euradwaste, Luxemburg 29-31 March 2004

L. Denissen, L. Ooms, H. Davain - Remote high pressure water jet cutting used at the BR3 nuclear dismantling site (052/04-03). 17th International Conference on Water Jetting, Advances and Future needs, Mainz, Germany, 7-9 September, 2004

V. Massaut, G. Collard - R&D techniques and how to continuously improve them (052/04-04) NEA International Workshop: Safe, efficient and cost-effective decommissioning Rome, 6-10 September 2004

I. Verwaest - The material (and waste) management in NPP decommissioning: a practical example and return of experience (052/04-07) IAEA International symposium on the Disposal of Low-Activity Radioactive Waste, Cordoba, Spain, 13-17 September 2004

Presentations V. Massaut - Is dismantling an exciting job? Internal Lunch Talk, SCK•CEN, 26 March 2004

V. Massaut, The BR3 project – Progress report - Presentation to the TAG 36 meeting, Daejeon, Korea, 10-14 April 2004

V. Massaut - The BR3 project – Progress report Presentation to the TAG 37 meeting,Aachen, Germany, 18-22 October 2004

V. Massaut - Technology issue: an international overview (225/04-01) IAEA Regional Workshop on Decommissioning, Vandellos, Spain, 27/09-01/10/2004

Reports P. Valenduc - Final Report ECDB Net 2 – EC contract FI4D-CT96-0010, Ref. 217/04-15Rev.1

EUNDETRAF - The European Nuclear Decommissioning Training Facility, Final Technical Report – ref. 217/04-07, Contract: FIKR-CT-2001-80123 – FP5 CCE, Reporting period from 01/01/2002 – 31/12/2003

V. Massaut - Identification of decommissioning options for reduction of tritiated waste quantities TWS-TSS-TS W1, Association Euratom-Belgian State, Watching activities in decommissioning R-4007 – Ref. 276/04-13 December 2004

Summary record of the 37th meeting of the Technical Advisory Group, Ref. CPD/PCJ/04/01

www.sckcen.be Operational Office: Boeretang 200, B-2400 Mol – Scientific Report 2004 Aachen, Germany, 18-22 October 2004

Training Courses V. Massaut - Application du principe ALARA en démantèlement, Université J. Fourier Grenoble, Valence, 19 January 2004

V. Massaut - BNEN Special Training Course on Decommissioning of Nuclear Installations SCK•CEN, Mol, April 20-21, 2004 Sessions on: - Introduction to Decommissioning: Definitions, objectives, levels, regulatory aspects - Different types of installations from a decommissioning point of view - Strategy and planning of a decommissioning project - Radioprotection, ALARA and Safety - Financial aspects of a decommissioning project

M. Ponnet, BNEN Special Training Course on Decommissioning of Nuclear Installations, SCK•CEN, Mol, April 20-21, 2004 Sessions on: - Metal Decontamination Techniques used in Decommissioning Activities - Inventory & Characterization before dismantling

J. Dadoumont, BNEN Special Training Course on Decommissioning of Nuclear Installations, SCK•CEN, Mol, April 20-21, 2004, - Dismantling techniques: the BR3 experience

E. Cantrel, BNEN Special Training Course on Decommissioning of Nuclear Installations, SCK•CEN, Mol, April 20-21, 2004 - Strategy for the decontamination of buildings, concrete pieces and structures

V. Massaut - IBC Summer School on Radioactive Waste Management and Decommissioning Cambridge, 1 July 2004

The Third European Nuclear Decommissioning Training Facility (EUNDETRAF), Third Training Course CEA Saclay, November 22 – December 3, 2004 Sessions on: - Y. Demeulemeester: Material management - V. Massaut: o Financial Aspects of a Decommissioning Project o Metal Decontamination Techniques used in Decommissioning Activities o Decontamination for decommissioning Decontamination of buildings and concrete

Contracts E. Cantrel, Chr. Le Goaller - "Strategy for the radiological characterization of the bioshield at the Salaspils research reactor" - End of mission report, 7-11 June 2004, IAEA Technical Co-operation project LAT/4/06-02

Y. Demeulemeester, S. Bodart, V. Massaut - Agreement on the purchase of decommissioning data of the BR3 reactor Phase 3bis, Air data for HPWJC cutting head and bottom, Contract nr. KNT 90 99 1306.03, Ref. 240/04-13, December 2004-January 2005

Conferences & events F. Vermeersch, V. Massaut - Visiplan Users Day, SCK•CEN Brussels, 22 June 2004

Site Restoration

Publications N. Impens, M. P. Van Laer, L. Vos, A. J.G. Leenaers, A. F. Fonteyne, S. Dekelver, R. C.P. Vandevoorde, Maltene and soluble salt removal from bituminized waste simulates: fractionation of the waste elements, International journal

www.sckcen.be Operational Office: Boeretang 200, B-2400 Mol – Scientific Report 2004 A. Bruggeman, P. Chaix, J.-P. Glatz, T. Fanghanel, ACTINET: Establishment of a Network of Excellence for Actinide Sciences, Proceedings Euradwaste ’04, Luxembourg, 29.03.2004-31.03.2004

N. Impens, P. Van Bree, J. Van Laer, P. Thomas, L. Vos, A. Fonteyne S. Dekelver, R. Vandevoorde, A. Leenaers, Stability of concentrated bitumen-salt-solvent mixtures, N. Impens et al, STABILITY OF CONCENTRATED BITUMEN-SALT-SOLVENT MIXTURES, proceedings of The 5th International Conference on Petroleum Phase Behaviour and Fouling, 14-17/06 2004

Presentations A. Bruggeman, S. Vanderbiesen, J. Braet, Tritium R&D in SCK-CEN's Chemical Processes Section Tritium meeting at ICSI, Romania, 10 to 12 February 2004

J. Braet, A. Bruggeman, J. Seghers, S. Vanderbiesen, Characterisation of JET waste streams (organic liquids, soft housekeeping waste, contaminated metals) and application of detritiation techniques. JW3-FT-2.15, EFDA/JET, Fusion Technology Task Force Monitoring Meeting, 19 May 2004, Telephone conference

J. Braet, A. Bruggeman, S. Vanderbiesen, Testing and demonstration of LPCE for high detritiation factors over a long time, EFDA/JET, Fusion Technology Task Force Monitoring Meeting, 19 May 2004, Telephone conference

N. Impens, P. Van Bree, J. Van Laer, P. Thomas, L. Vos, A. Fonteyne, S. Dekelver, R. Vandevoorde, A. Leenaers,Stability of concentrated bitumen-salt-solvent mixtures, The 5th international conference on petroleum phase behaviour and fouling, Banff, Alberta, June 13-17, 2004, Canada

A. Bruggeman, P. Goethals, Y-Z Wei, K. Horiguchi, M. Kumagai, Palladium removal from spent nuclear fuel solution using SiPyR-N3 anion exchanger, IEX 2004, 4 - 7 July 2004, Churchill College, University of Cambridge, UK

A. Bruggeman, J. Braet, S. Vanderbiesen, Water detritiation: better catalysts for liquid phase catalytic exchange, Tritium 2004 conference, Baden-Baden, Germany, 12-17 September 2004

J. Braet, A. Bruggeman, Oxidation of tritiated organic liquid waste, Tritium 2004 Conference, Baden- Baden, Germany, 12-17 September 2004

J. Braet, A. Bruggeman, S. Vanderbiesen, An overview of SCK•CEN’s technological research for the treatment of tritiated waste, 10 th international Conference "Progress in Cryogenics and Isotopes Separation", Calamanesti, Romania, 13-15 Oktober 2004

N. Impens, Research into possible alternative solutions for the long term management of bituminised radioactive waste, Exchange meeting on bituminised radioactive waste 26/10/2004, SCK•CEN, Mol, Belgium Organised by NIRAS/ONDRAF

J. Braet, A. Bruggeman, S. Vanderbiesen, Progress in the testing and demonstration of LPCE for high detritiation factors over a long time, EFDA/JET, Fusion Technology Task Force Monitoring Meeting, 15 November 2004, Telephone conference

Reports P. Goethals, D. Penneman, A. Bruggeman, J. Braet, L. Sannen, M. Gysemans, P. Van Bree, G. Verpoucke, DEVELOPMENT OF THE ERIX PROCESS for REPROCESSING SPENT FBR-MOX FUEL – 2003: Pd Recovery Experiment Using a Solution of Irradiated MOX Fuel, Subsequent Electrolytic Reduction Experiment and Chromatographic Separation on AR-01 Anion Exchanger R- 3870

N. Impens, J. Van Laer, R. Vandevoorde, Organic depositions in petroleum industry. Towards the selection of active compounds (II), Contract-report with R-nr-3844

Thesis B. Decelle, De kwantitatieve bepaling en chromatografische scheiding van actiniden, (²⁴¹Am) en lanthaniden (Nd), Kath. Hogeschool Limburg, Grad. Chemie, 2003-2004

B. Jordens, C. Bortels, Geïntegreerde proef Chemie: Turbimetrie, KTA, Hasselt, April 2004

www.sckcen.be Operational Office: Boeretang 200, B-2400 Mol – Scientific Report 2004 T. Verheyen, Koude simulatie van een gebitumineerd zoutmengsel, KHLIM Diepenbeek, Juni 2004

J. Bertels, Kwantitatieve bepaling van radionucliden via vloeibare scintillatietelling, Groep T thesis, Ind. Ir. Chemie, 2003 – 2004

J. Briat, Fysicochemisch gedrag van bitumen oplossingen, Groep T Leuven, chemie, juni 2004

J. Truyens, Fusie-energie zonder tritiumlozingen: volledige decontaminatie van getritieerde waterstof in een tegenstroomdruipbedreactor, Kath. Hogeschool Limburg, Diepenbeek, juni 2004

J. Camps, Opbouw en testen van de pilootopstelling voor de verwerking van getritieerde organische vloeistoffen, Hogeschool Limburg - Departement industriële

Poster International Conference P. Goethals, L. Vos, D. Penneman, A. Bruggeman, Y. Wei, H. Hoshi, M. Kumagai CHROMATOGRAPHIC SEPARATION OF ACTINIDES AND LANTHANIDES FROM FISSION PRODUCTS ON CMPO/SiO2-P EXTRACTION RESIN Sixth International Conference on Nuclear and Radiochemistry (NRC6) 29 August to 3 September 2004 Aachen, Germany

Nuclear Chemistry and Services

Publications M. Gysemans, M. Van Bocxstaele, P. Van Bree, L. Vandevelde, E. Koonen, L. Sannen, B. Guigon, "Destructive Radiochemical Analysis of Uraniumsilicide Fuel for Burnup Determination", Advances in Nuclear and Radiochemistry, Extended Abstracts, pp. 187-188, 2004.

Presentations M. Gysemans, M. Van Bocxstaele, P. Van Bree, L. Vandevelde, E. Koonen, L. Sannen, B. Guigon, "Destructive Radiochemical Analysis of Uraniumsilicide Fuel for Burnup Determination", Sixth International Conference on Nuclear and Radiochemistry (NRC-6), Aachen Germany, 29 August to 3 September 2004.

M. Gysemans, Destructive Radiochemical and Chemical Analysis of Nuclear Research and Industrial Materials at NCS, SCK.CEN, Mol September 17, 2004.

M. Gysemans, Destructive Radiochemical Analysis of 2 Rebus spent fuel samples, Rebus PWR 4th PCM, Brussels Belgonucléaire, November 19, 2004.

M. Gysemans, Destructive Radiochemical Analysis, Topgun/Geronimo Progress Report, Geronimo PCM-4, Topgun PCM-3, Brussels Belgonucléaire, December 9, 2004

Reports M. Gysemans, TOPGUN – Destructive radiochemical analysis for burnup determination – Fuel rod WRCP0950 (G3), SCK.CEN-R-3820, January, 2004.

P. Van Bree, Determination of Cu, Ni, Mn, Mo, Cr, Al in ferritic low alloy steels by ICP-MS, Intermediate report,SCK.CEN-R-3931, July, 2004.

Training Courses M. Gysemans, Training Radiation Expert SCK.CEN/HL, Module Radiochemistry, 2004.

www.sckcen.be Operational Office: Boeretang 200, B-2400 Mol – Scientific Report 2004