ICEM11 Final Program 9.7.11pm_ICEM07 Final Program ... - Events

Session 7 Abstracts
5) INTEGRATED PROGRAM MANAGEMENT FOR MAJOR NUCLEAR DECOMMISSIONING
AND ENVIRONMENTAL REMEDIATION PROJECTS (w/oP-59068)
John Lehew, CH2M Hill Plateau Remediation Company (USA)
CH2M HILL Plateau Remediation Company (CH2M HILL) is the U.S. Department of Energys (DOE) contractor responsible
for the safe, environmental cleanup of the Hanford Sites Central Plateau, sections of the Columbia River Corridor and the Hanford
Reach National Monument.
The 586-square-mile Hanford Site is located along the Columbia River in southeastern Washington, U.S.A. A plutonium production
complex, housing the largest volume of radioactive and contaminated waste in the nation, with nine nuclear reactors and
associated processing facilities, Hanford played a pivotal role in the nation’s defense for more than 40 years, beginning in the 1940s
with the Manhattan Project. Today, under the direction of the DOE, Hanford is engaged in one of the world’s largest environmental
cleanup project.
The Plateau Remediation Contract is a 10-year project paving the way for closure of the Hanford Site. The site through its location,
climate, geology and proximity to the Columbia River in combination with the results of past nuclear operations presents a
highly complex environmental remediation challenge. The complexity is not only due to the technical issues associated with
decommissioning nuclear facilities, remediating soil contamination sites, dispositioning legacy waste and fuel materials and integrating
these with the deep vadose zone and groundwater remediation,…
6) EPRI NUCLEAR POWER PLANT GROUNDWATER PROTECTION PROGRAM (w/oP-59341)
Karen Kim, Electric Power Research Institute (USA) - Presentation by Sean Bushart, EPRI (USA)
The Electric Power Research Institute (EPRI) is a non-profit research organization that supports the energy industry. The
Nuclear Power Plant Groundwater Protection Program conducts research related to the management of groundwater at nuclear
power plant sites.
Experiences at decommissioned and operating nuclear power plants show that leaks and spills from plant systems, structures,
and components and work practices can lead to contamination on on-site soils and groundwater. While the levels of radioactivity
resulting from such contamination events do not pose health and safety threats to the public, they have raised stakeholder concerns
and, in some cases, have required remediation during decommissioning to meet site-release criteria. The EPRI Nuclear Power Plant
Groundwater Protection Program provides technical support and guidance to the industry for prevention of leaks and spills, early
detection of leaks and spills, monitoring of groundwater contamination, prevention of off-site migration of groundwater contamination,
and remediation of groundwater and soil contamination. The EPRI Groundwater Protection Program is composed of two
main objectives: 1) provide technical guidance and 2) develop advanced technologies.
The cornerstones of the EPRI Groundwater Protection Program are the EPRI Groundwater Protection Guidelines for Nuclear
Power Plants and the EPRI Groundwater and Soil Remediation Guidelines. These Guidelines documents
7) CLEAN UP STRATEGIES AND RESULTS IN USIN SITE IN SÃO PAULO CITY, BRAZIL (w/oP-59243)
Rodrigo Raposo de Almeida, Federal Fluminense University;
Valter J.G. Mortágua, Industrias Nucleares do Brasil (Brazil)
This paper presents the experience of the team of technicians and consultants from INB (Industrias Nucleares do Brazil SA)
in activities related to environmental remediation of soils contaminated by radionuclides of natural series of uranium and thorium
in the USIN unit (old mill Interlagos).
In 2007 was elaborated a master plan for remediation the USIN site, after 6 months the plan was approved by CNEN, the
nuclear regulatory agency in Brazil. Given the lack of a final deposit of radioactive residues in Brazil, the elaborate plan aimed to
minimize the volume of radioactive waste final. A criterion was developed to fractionate the tailings at three levels. The waste level
1, with activity of 226Ra and 228Ra below 0.5 Bq/g and the effective dose of less than 1.0 mSv/yr, may remain in the area. The
waste level 2, with activity of 226Ra and 228Ra than 0.5 Bq/g and individual effective dose exceeding 1,0 mSv/yr, but with total
activity below 30 Bq/g may be disposed in municipal landfills. The waste level 3, with total activity above 30 Bq/g should be stored
in steel drums of 200 liters and stored in a radioactive residues warehouse.
Considering that the time for radiometric analysis is…
8) APPLICATION OF AN ENVIRONMENTAL REMEDIATION METHODOLOGY:
THEORY VS. PRACTICE. REFLECTIONS AND TWO BELGIAN CASE STUDIES (wP-59184)
Koen Mannaerts, Stephane Pepin, Boris Dehandschutter,
Walter Blommaert, Federal Agency for Nuclear Control (FANC) (Belgium)
Like in many countries, polluted industrial sites also exist in Belgium. Although the contamination is purely chemical in most
cases, they may also contain a radioactive component. For chemically contaminated sites, extensive regulations and methodologies
were already developed and applied by the different regional authorities. However and essentially because radioactivity is a federal
competence, there was also a necessity for developing a legal federal framework (including an ER-methodology) for remediation
of radioactive contaminated sites. Most of the so-called radioactive contaminated sites are exhibiting a mixed contamination
(chemical and radiological), and hence the development of such methodology had to be in line with the existing (regional) ones
concerning chemical contamination. Each authority having their own responsibilities with regard to the type of contamination, this
makes it more complicated and time-consuming finding the best solution satisfying all involved parties. To overcome these difficulties
the legal framework and methodology - including the necessary involvement of the stakeholders and delineation of each partys
responsibilities - has to be transparent, clear and unambiguous.
Once the methodology is developed as such and approved, the application of it is expected to be more or less easy, logic and
straightforward. But is this really true? The aim this…
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