A Dynamical Network Model for Percolation Problems in Performance Assessment of Radioactive Waste Management

1994 ◽  
Vol 353 ◽  
Author(s):  
Hiroyasu Takase ◽  
M. Inagaki ◽  
M. D. Impey ◽  
P. Grindrod
Keyword(s):  
Radioactive Waste ◽  
Waste Management ◽  
Performance Assessment ◽  
Network Model ◽  
Waste Disposal ◽  
Three Dimensional ◽  
Radioactive Waste Disposal ◽  
Numerical Techniques ◽  
Dynamical Network ◽  
Wide Range

AbstractA semi-analytical model for percolation problems, called the Dynamical Network Model, is developed. Because of its semi-analytic nature, the model is more efficient than the existing numerical techniques especially for three dimensional problems and, thus, can be used to a wide range of percolation-like problems in performance assessment of radioactive waste disposal.

The Overview of Radioactive Waste Management Technology

2013 ◽  
Vol 448-453 ◽  
pp. 199-203
Author(s):  
Guo Hua Qiu
Keyword(s):  
Radioactive Waste ◽  
Waste Management ◽  
Waste Disposal ◽  
Reference Value ◽  
International Standards ◽  
Radioactive Waste Disposal ◽  
Radioactive Waste Management ◽  
Management Technology ◽  
Waste Classification

The Radioactive waste management technology is briefly introduced in this article based on related standards, guidelines and documents from IAEA. The radioactive waste management technology (RWM) includes related international standards and conventions, predisposal radioactive waste management, RWM for radioactive waste disposal, RWM for remediation, NORM and mining/milling waste. These management methods and valuable experience have important reference value to waste classification, waste disposal and management and related work in China.

scholarly journals A tentative useful-for-all definition of “safety” in the context of radioactive waste disposal

2021 ◽  
Vol 1 ◽  
pp. 195-196
Author(s):  
Stephan Hotzel
Keyword(s):  
Radioactive Waste ◽  
Waste Management ◽  
Waste Disposal ◽  
Common Ground ◽  
Radioactive Waste Disposal ◽  
National Programmes ◽  
Geological Repository ◽  
Safety Case ◽  
Definition Of

Abstract. Most, if not all, national programmes for radioactive waste management pledge their overall commitment to safety or – in the case of radioactive waste disposal – to long-term safety. Therefore, it may be somewhat surprising to find that the term “safety” is hardly defined in these programs. The same holds for some of the core international guidance literature on the deep geological repository (DGR) “safety case” concept. With respect to stakeholder concern over the safety of geological disposal, it seems, however, advisable to seek common ground in the understanding of the idea of “safety”. Hotzel and Schröder (2018) reviewed the most relevant international guidance literature for explicitly or implicitly provided definitions of “safety” in the context of radioactive waste disposal. Based on this study – and on the finding that a practical, useful-for-all definition of “safety” is not provided in the scanned literature – they developed a tentative dictionary-style definition of “safety” that is suitable for everyday use in the DGR context. In the current contribution I embed, expand and update the 2018 study at both ends: As an enhanced introduction to the 2018 study, I lay out a basic concept of “sound” glossary definitions, namely glossary definitions being both practical and correct (and what this means). The thesis is that sound glossary definitions can facilitate mutual understanding between different stakeholder groups. As an update to the actual proposal for the definition of “safety” from the Hotzel and Schröder (2018) paper, that was presented and discussed at the Waste Management Conference 2018, I review the latest international guidance literature and the stakeholder concerns raised at the 2018 conference in order to present a revised definition. As a seed of discussion, it may help to eventually expose possible mismatches in the base assumptions of safety experts and other stakeholders and thereby support meaningful communication.

Creation of system of final isolation (disposal) of radioactive waste in the Russian Federation

MRS Advances ◽  
2020 ◽  
Vol 5 (5-6) ◽  
pp. 275-282 ◽  
Author(s):  
Vsevolod Igin ◽  
Victor Krasilnikov
Keyword(s):  
Radioactive Waste ◽  
Waste Management ◽  
Waste Disposal ◽  
Russian Federation ◽  
Radioactive Waste Disposal ◽  
High Level Waste ◽  
Federal State ◽  
Radioactive Waste Management ◽  
Near Surface ◽  
High Level

Abstract:The paper provides generic overview of legal and regulatory framework of radioactive waste management activities held in Russian Federation and national operator responsibilities and accomplishments. It gives a short description of waste classification scheme used and plans for radioactive waste disposal. In particular the paper provides information on the plans of the FEDERAL STATE UNITARY ENTERPRISE "National operator for radioactive waste management" to construct and operate several near-surface disposal facilities for low and intermediate level waste with total capacity up to 550 000 cubic meter. The paper also provides detailed information on the steps of high-level waste disposal program including site-selection, construction phase of the underground research laboratory (URL) near the city of Zheleznogorsk, Krasnoyarsk Region and research program after the construction of the URL. The paper also describes Russian system and state policy in the field of RW management and gives recommendations for future implementers.

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