News from 2004

News Items

Public consultation on the long-term management of low and intermediate level radioactive waste in Ontario, Canada

18 Nov 2004

During late 2002 and early 2003, Ontario Power Generation Inc. (OPG) contracted Quintessa to undertake a preliminary assessment of the long-term radiological safety of four permanent repository concepts for the management of low and intermediate level radioactive waste at the Western Waste Manageme…

Partnership with GoldSim Agreed

2 Nov 2004

Quintessa is delighted to announce that it has signed an agreement to collaborate with the GoldSim Technology Group (GTG).

Verification of Raiden3 for cement-bentonite interactions

12 Oct 2004

Raiden3, Quintessa's fully coupled reaction-transport code, has been verified for problems involving the interaction of hyperalkaline fluids with bentonite by inter-comparison with the published results from an independent code.

Online Database for CO₂ Storage Features, Events & Processes

13 Sep 2004

Of the many methods that have been proposed to reduce the amount of CO2 that is released to the atmosphere, geological storage of CO2 is starting to be tested in many commercial-scale projects worldwide.

Regulatory criteria for de-licensing nuclear sites

20 Jul 2004

In April 2004, the UK Health and Safety Executive (HSE) published a consultative document on proposed regulatory criteria for de-licensing nuclear sites under the Nuclear Installations Act 1965.

Performance Assessment Workshop for UKAEA staff

22 Mar 2004

Quintessa recently ran a one-week residential course in Performance Assessment (PA) for UKAEA technical and project management staff from Dounreay and Harwell sites.

TESLA Version 1.2 Launched

19 Mar 2004

Quintessa is pleased to announce the release of TESLA 1.2, a decision support modelling application based on Evidence Support Logic. TESLA is a tool to assist in the evaluation of complex situations where there are multiple and sometimes conflicting sources of evidence, as well as residual uncertai…

UK Government Consultation on Decommissioning the UK's Nuclear Facilities

15 Mar 2004

In November 2003, the UK Government published proposals to modernise its policy on decommissioning nuclear facilities. The suggested policy takes account of the proposed formation of the Nuclear Decommissioning Authority.

Modelling of Waste Package Evolution Scenarios for the Nirex Phased Disposal Concept

15 Mar 2004

Following the development of waste package evolution scenarios for the geological disposal of cemented intermediate-level wastes (see news story dated 15th August 2003), Quintessa has developed a model to investigate the importance of time dependence and heterogeneity effects on post-closure reposi…

Raiden3 - fully coupled reactive geochemical transport and flow code Developed

9 Mar 2004

Raiden3 is the latest evolution of Quintessa's fully coupled reactive geochemical transport and flow code.

Governance in European Radioactive Waste Management - COWAM 2

4 Feb 2004

Quintessa is a participant in the newly-established COWAM 2 project on radioactive waste management governance, which has been developed within the European Commission's Sixth Framework Programme. COWAM 2 is a follow up to the COWAM (Communities and Waste Management) concerted action, which ran as…

Contribution to TRENDS in the European Offshore Energy Industry

12 Jan 2004

Quintessa is a participant and working group co-leader for the European TRENDS thematic network, which brings together organisations from across Europe, to address the present and future challenges in the health, safety, environmental and quality (HSEQ) aspects of hydrocarbon energy production.