Geologic evaluation of a site for a nuclear power plant

1979 ◽  
pp. 27-40 ◽  
Author(s):  
MERLYN J. ADAIR
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
A Site

scholarly journals Consecutive sexual maturation observed in a rock shell population in the vicinity of the Fukushima Daiichi Nuclear Power Plant, Japan

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Toshihiro Horiguchi ◽  
Kayoko Kawamura ◽  
Yasuhiko Ohta
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Sexual Maturation ◽  
Nuclear Power ◽  
Tohoku Earthquake ◽  
Site Specific ◽  
Thais Clavigera ◽  
Rock Shell ◽  
Fukushima Daiichi ◽  
A Site

AbstractIn 2012, after the accident at the Fukushima Daiichi Nuclear Power Plant (FDNPP) that followed the Tohoku earthquake and tsunami in March 2011, no rock shell (Thais clavigera; currently recognized as Reishia clavigera; Gastropoda, Neogastropoda, Muricidae) specimens were found near the plant from Hirono to Futaba Beach (a distance of approximately 30 km). In July 2016, however, rock shells were again found to inhabit the area. From April 2017 to May 2019, we collected rock shell specimens monthly at two sites near the FDNPP (Okuma and Tomioka) and at a reference site ~ 120 km south of the FDNPP (Hiraiso). We examined the gonads of the specimens histologically to evaluate their reproductive cycle and sexual maturation. The gonads of the rock shells collected at Okuma, ~ 1 km south of the FDNPP, exhibited consecutive sexual maturation during the 2 years from April 2017 to May 2019, whereas sexual maturation of the gonads of specimens collected at Hiraiso was observed only in summer. The consecutive sexual maturation of the gonads of the specimens collected at Okuma might not represent a temporary phenomenon but rather a site-specific phenotype, possibly caused by specific environmental factors near the FDNPP.

scholarly journals Selecting a site for the nuclear power plant underground installation during new fields development

2020 ◽  
pp. 5-13
Author(s):  
Iurii G. Smirnov ◽  
◽  
Aleksandr O. Orlov ◽  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Power Plants ◽  
Climatic Conditions ◽  
Frozen Soil ◽  
Construction Sites ◽  
Methodical Approach ◽  
A Site ◽  
Station Location

Introduction. The construction of underground installations in permafrost is aimed at ensuring the integrated safety of power facilities, small nuclear power plants (SNPP). In these conditions, location choice is a crucial stage in SNPP design and construction. As a rule, construction sites are situated at remote and little developed territories. Construction in permafrost is characterized by adverse climatic conditions and frozen soil, which lead to construction cost indicators growth. Research aim is to carry out comparative evaluation of two sites available for the facilities arrangement at the Peschanka copper porphyry deposit by ranking SNPP location sites. Methodology. Natural and climatic conditions play a significant role in siting and are capable of affecting the safety of both the nuclear facility and surrounding territories during a nuclear power plant operation. The choice of the station location is associated with a number of natural and man-made environmental characteristics. Results. The determining factor in the use of the energy sources under consideration is the need to bring them closer to the main energy consumers, especially in remote and hard-to-reach areas without developed infrastructure. As part of SNPP creation concept, there is an increasing significance of research concerning the siting of underground radiation-hazardous facilities. The methodical approach to selecting sites for underground installations in permafrost includes their ranking. Summary. While ranking the sites according to natural and socio-economic criteria, the most acceptable sites for SNPPs are identified. The results of research on the choice of particular sites during the construction of a mining and processing complex at Peschanka deposit have made it possible to make a conclusion on the site’s suitability for underground installation adit location.

Hitachi-GE Advanced Construction Management Technologies

2008 ◽  
Author(s):  
Kimiharu Onda ◽  
Masatoshi Takada ◽  
Hisako Okada ◽  
Kazuto Tatehora
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Construction Management ◽  
Nuclear Power ◽  
New Technologies ◽  
Personal Digital Assistant ◽  
Safety And Reliability ◽  
Planning Function ◽  
Under Construction ◽  
A Site

Hitachi has so far developed the construction management system with information technology since more than twenty years ago. As the recent results, we developed the advanced new functions and applied them to the Nuclear Power Plant (NPP)’s under construction. RFID-applied construction management method with personal digital assistant (PDA) could realize more reliable and efficient construction control on a site. By enhancing an Integrated Schedule Planning function, the construction scheme could be more accurately and speedily developed, which made it possible to realize the standardization of schedule planning, the linkage with other systems, and the improvement of operability. By applying these new technologies to Hitachi construction management, Hitachi can supply the nuclear power plant with higher quality, safety, and reliability.

scholarly journals Condition of 137Cs Activity in Karimunjawa Waters and its Distribution When an NPP Jepara is Operated

2016 ◽  
Vol 21 (3) ◽  
pp. 143
Author(s):  
Muslim Muslim ◽  
Heny Suseno ◽  
Siti Saodah
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Coastal Waters ◽  
Nuclear Power ◽  
Global Fallout ◽  
137Cs Activity ◽  
Distribution Model ◽  
Java Sea ◽  
Average Activity ◽  
A Site

Karimunjawa islands are located in the middle of the Java Sea, approximately 83 km northwest of Jepara city. These islands have become an Indonesian marine tourism destination and since 2001 had been designated as a national park. The Indonesian government has chosen Muria peninsula in the district of Jepara, Indonesia as a site for a potential nuclear power plant (NPP). The purpose of this study was to determine the current level of radiocesium (137Cs) activity and forecast its spread if an NPP is operated at Jepara. To determine the distribution of 137Cs in Karimunjawa waters, a sampling of water was done in six stations. Simulation modeling was used to map the distribution of 137Cs should an NPP be constructed in Jepara. The results showed that 137Cs activity in Karimunjawa waters ranges from 0.12 to 0.39 mBq.L-1 with an average of 0.24 mBq.L-1. This value is slightly higher than previous studies in the coastal waters of Gresik, which had an average activity of 0.200 mBq.L-1 because the waters around Karimunjawa have a lower dilution rate than the coastal waters of Gresik. However, these values were considerably lower than those in the waters of Northeast Japan before the Fukushima nuclear power plant accident which registered 137Cs activity at 2-3 mBq.L-1.This indicates that 137Cs in Karimunjawa is not entirely from Fukushima rather from the global fallout. The 137Cs distribution model suggests that after 15 days, a leakage in the Muria Peninsula nuclear plant will not contaminate Karimunjawa waters because the current in the Java Sea is relatively weak and dominant in the westward direction. Thus, when an NPP leak only runs for 15 days, Karimunjawa waters remain safe.Keyword: 137Cs, Karimunjawa, NPP, modeling, Muria Peninsula

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