radioactive waste Articles
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Optimisation of processes in a two-stage installation for liquid radioactive waste immobilisation
A two-stage installation for liquid radioactive waste (LRW) immobilisation is intended for LRW reprocessing with the objective to include radionuclides into solid vitreous matrix. Depending on the processing scheme of immobilisation, an installation for LRW immobilisation may include one or more devices. This paper describes a developed mathematical model of a two-stage installation for LRW ...
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Knowledge management for radioactive waste management organisations
Starting in 2006, the International Atomic Energy Agency (IAEA) developed a guidance publication on knowledge management for radioactive waste management organisations. The publication is part of the IAEA Nuclear Energy Document Series at the level of Report. The purpose of the document was to provide guidance to the full range of decision makers (in both the public and private sectors) on ...
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Assessment of uncertainty in discrete fracture network modeling using probabilistic distribution method
There have been widespread concerns about solute transport problems in fractured media, e.g. the disposal of high-level radioactive waste in geological fractured rocks. Numerical simulation of particle tracking is gradually being employed to address these issues. Traditional predictions of radioactive waste transport using discrete fracture network (DFN) models often consider one particular ...
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Integrated system for regulatory control of the radioactive waste management in radioactive installations
The object of this paper is to present the 'Integrated Information System for Supporting the Inventory Control of Radioactive Waste' ? SICORR. The SICORR model considers the following items: the radioactive waste control inventory, encompassing the treatment and integration of the radioactive waste and the radionuclide data and processes; the installations that produce, use, transport or store ...
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Radioactive waste management in Italy
After a short review of radioactive waste origins and inventories in Italy, the paper deals with the current major challenges that Italy has to cope with to pursue its radioactive waste sustainable management and safe disposal. Site restoration by Sogin of dismissed nuclear installations is part of the waste management challenge. The importance of assuring the highest levels of safety culture ...
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Knowledge management for radioactive waste disposal: moving from theory to practice
The exponential growth in the knowledge base for radioactive waste management is a cause for concern in many national programmes. In Japan, this problem is exacerbated by a volunteering approach to siting of a deep geological repository, which requires particular flexibility in the tailoring of site characterisation plans, repository concepts and associated Performance Assessments (PAs). ...
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Research output in radioactive waste management based on non–conventional literature
This paper identifies the research paradigms in the area of radioactive waste management based on the technical reports retrieved from the International Nuclear Information System (INIS) from 1970 to 2012. The aim is to determine the volume of research output, the countries involved in the research; collaboration network has been studied at the micro level (individuals) and the macro level ...
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Research trends in radioactive waste management: a global perspective
The present study is aimed at analysing the growth of literature on radioactive waste management. International Nuclear Information System (INIS) database is used as a data source to analyse the focused areas of this field for the period 1970–2011. Journal Citation Report–2010 is used for eliciting information related to journal impact factors. The database contained a total of 101,419 ...
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Sogin: best practice in supplier qualification
The purchasing and procurement policy of the Italian Sogin company, which is engaged in the reclamation of nuclear sites and management of radioactive waste, helps to ensure safety and quality during all work stages so as to protect workers, citizens and the environment.Keywords: Sogin, Nucleco, nuclear decommissioning, radioactive waste, waste management and disposal, qualification system, ...
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A financial-option procedure for determining a fuzzy discount rate in radioactive waste management
This paper proposes a procedure based on financial-option theory for establishing a fuzzy discount rate for radioactive waste management. Funding is made available in a dedicated fund for covering future liabilities, including technical-scenario uncertainties. Assets in the fund are managed according to some given strategic asset allocation. Put-option theory is used for testing the suitability ...
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Investigating the mechanical behavior of a surface repository for low and intermediatelevel short-lived radioactive waste - Case Study
Project Description Andra operates a surface repository in Aube (“CSA”, North‐Eastern France), where some of the concrete canisters containing low and intermediate‐level short‐lived radioactive waste are stacked in concrete structures, then filled with gravel (Fig 1). ITASCA Consultants SAS, together with EGIS Industries, has studied the mechanical behavior of the ...
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Sub-seabed disposal of radioactive waste
This article considers two detailed reviews of the legal aspects of Sub-Seabed Disposal of Radioactive Waste, by Richard Macrory and Ray Purdy (January 2005) and the opinion of Christopher Katkowski Q.C. and Stephen Tromans, March 2005. In substance, both reviews conclude that for a sub-seabed repository accessed from land by tunnel, the relevant International Conventions, in particular the UN ...
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Accounting and control of sources of ionising radiation and radioactive materials
The paper describes the various elements of the state accounting and control system of radioactive materials and radioactive waste in the Russian Federation, and some of the tasks to be carried out for the development and improvement of the system. A list and short description of documents of this system and structure and the organisation scheme of the system are also presented.Keywords: state ...
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Socio–environmental nuclear conflicts: the case of El Cabril
Since the commissioning of the 'El Cabril' Central Storage Facility for Low– and Intermediate–level Radioactive Waste (hereafter 'El Cabril'), most people living in nearby towns and villages have regarded this nuclear facility with a marked degree of rejection and distrust. This study examines the process of analysis, management and intervention specifically designed and implemented with a view ...
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Potential for British research into the transmutation of radioactive wastes and problematic nuclear materials
Issues concerning the management of the UK's official radioactive wastes and associated surplus radioactive materials are summarised. The potential for partitioning and transmutation (P&T) of these materials is considered and associated potential developments discussed. The paper recommends international P&T research as part of a move to reduce the volume of nuclear waste. This reduction would be ...
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Analysis of reconstruction of the composition of liquid radioactive waste released into the Techa River in 19491956
An analysis of archival data of liquid radioactive waste samples and Techa River bottom sediments was made, taking into consideration the radiochemical methods for extraction and beta-emitting radionuclide activity measurements existing in the early 1950s. It was stated that the radionuclide composition of the routine and accidental liquid radioactive waste releases in 19491951 corresponded to ...
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Abundant health from radioactive waste
When beliefs are abandoned and evidence from only whole body exposures to mammals is considered, it becomes obvious that increased ionising radiation would provide abundant health. The best source for that increased exposure is radioactive waste. A radiation deficiency is seen in a variety of species, including rats and mice; the evidence for a radiation deficiency in humans is compelling. We ...
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Multinational repositories: ethical, legal and political/public aspects
Concepts for shared multinational repositories face a great challenge in achieving acceptance, despite the fact that they promise advantages in safety, security, environmental protection and costs. When considering advantages of shared multinational repositories, it is instructive to examine which are the ethical, legal and political issues that mostly affect the feasibility of implementing such ...
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A simple gamma technique for the assay of radioactive waste drums
A simple gamma technique based on using two identical detectors has been studied and applied to assay radwaste drums. The characterisation and performance of the measurement system are discussed for practical application. The results show that the proposed technique successfully solved the problem of assay of unusual radwaste drums (as released from Dalat Nuclear Reactor, Vietnam).Keywords: gamma ...
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Long term behavior of claystone and its interaction with steel casing - Case Study
Project Description Study of potential damage in the claystone surrounding a HLW disposal cell for storage of high-level radioactive waste (HLW waste). OFFICE France Itasca Consultants S.A.S. INDUSTRIESCLIENT NAME Long term behavior of claystone and its interaction with steel casing LOCATION France SOFTWARE 3DEC ...
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