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Migration09 Conference

Migration '09

12th International Conference on the Chemistry and Migration Behaviour of Actinides and Fission Products in the Geosphere

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Three Rivers Convention Center
Kennewick, Washington, USA
September 20 - 25, 2009

The 12th Migration Conference was held in Kennewick Washington, close to one of the pioneer locations of nuclear technology: the Hanford Site.


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 '09 covered the following areas:

Aquatic chemistry of actinides and fission products

  • Solubility and dissolution
  • Solid solution and secondary phase formation
  • Complexation with inorganic and organic ligands
  • Redox reactions and radiolysis effects
  • Solid-water interface reactions
  • Colloid formation
  • Experimental methods

Migration behaviour of radionuclides

  • Sorption/desorption phenomena in dynamic systems
  • Diffusion and other migration processes
  • Colloid migration
  • Effects of biological and organic materials
  • Field and large scale experiments
  • Natural Analogues

Geochemical and transport modelling

  • Data selection and evaluation
  • Coupling chemistry and transport
  • Development and application of models
  • Model validation

Scientific Program

The primary mode of presentation was early evening poster sessions designed to encourage intense communication, in a relaxed atmosphere, among the authors and participants. Daily oral sessions were opened with invited lectures followed by contributed papers within the scope of each session.


Full papers of all invited and contributed presentations were peer-reviewed and, if accepted, published in the conference proceedings. The proceedings consisted of special issues of international journals.


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, and MIGRATION '07 again in Munich.

Conference papers that were peer-reviewed and accepted for publication have appeared in special issues of Radiochimica Acta 44/45 (1988), 52/53 (1991), 58/59 (1992), 66/67 (1994), 74 (1996), 82 (1998), 88 (no. 9/10) (2000), 90 (2002), 92 (2004), 94 (2006), in the Journal of Contaminant Hydrology 13 (no. 1/4) (1993), 21 (no.1/4) (1996), 26 (no.1/4) (1997), 35 (no. 1/3) (1998), 47 (no2/4) (2001), 61 (no1/4) (2003) and in Physics and Chemistry of the Earth 31 (2006) . Proceedings of the last conference are in print in the journals Radiochimica Acta 96 (2008) and Physics and Chemistry of the Earth.



Migration 09