Identification of water quality and benthos characteristics in Daya Bay, China, from 2001 to 2004

2011 ◽  
Vol 40 (1) ◽  
Author(s):  
You-Shao Wang ◽  
Cui-Ci Sun ◽  
Zhi-Ping Lou ◽  
Haili Wang ◽  
B. Mitchell ◽  
...  
Keyword(s):  
Water Quality ◽  
Chlorophyll A ◽  
Nuclear Power ◽  
Power Plants ◽  
Daya Bay ◽  
Cage Culture ◽  
Marine Monitoring ◽  
Physicochemical Factors ◽  
Positive Loading ◽  
High Positive Loading

AbstractPhysicochemical and benthos data were collected from 12 marine monitoring stations in Daya Bay, during 2001-2004. 12 stations in Daya Bay could be grouped into three clusters: cluster I consisted of stations in the southern part of Daya Bay (stations S1, S2 and S6); cluster II consisted of stations in the cage culture areas (stations S3, S4, S5 and S8); cluster III consisted of stations in the southwest, the middle and the northeast of the Bay (stations S7, S9, S10, S11 and S12). Calculation with bivariate correlations between benthos and major physicochemical factors showed that the density of benthos in all stations correlated positively with temperature, DO, pH, NH4-N, SiO3-Si, SiO3-Si /PO4-P and chlorophyll a and was negatively correlated with salinity, Secchi, COD, NO3-N, NO2-N, TIN, PO4-P, TIN/PO4-P and BOD5. Factor analysis showed that there were high positive loading salinity, Secchi and NH4-N of three clusters. Results revealed that temperature, DO, pH, SiO3-Si and SiO3-Si/PO4-P and chlorophyll a could also play an important role in determining the biomass of benthos in Daya Bay, especially near the Nuclear Power Plants, in the southern part and in the cage culture areas.

scholarly journals The The impact of Cirebon coal-fired power plants on water quality in Mundu Bay, Cirebon Regency

2020 ◽  
Vol 4 (3) ◽  
pp. 189-204
Author(s):  
Millary Agung Widiawaty ◽  
Nurhanifah Nurhanifah ◽  
Arif Ismail ◽  
Moh. Dede
Keyword(s):  
Water Quality ◽  
Power Plant ◽  
Chlorophyll A ◽  
Power Plants ◽  
Field Measurements ◽  
Landsat 8 ◽  
Marine Biota ◽  
Coastal Morphology ◽  
The Impact

The presence of Cirebon coal-fired power plant I and II caused negative effects to coastal morphology and the quality of marine waters. This also have negative impacts to the fisherman around that sea. This study aims to examine the impact of the Cirebon coal-fired power plant on the water quality of Mundu Bay, Cirebon Regency. Water quality is determined based on total suspended solids (TSS), sea surface temperatures (SST), chlorophyll-A, and salinity in the range 1999 – 2019. Data collection was carried out using satellite imagery of Landsat-5 TM, Landsat- 7 ETM+, and Landsat-8 OLI verified with in-situ field measurements, Sentinel-2 A MSI, and MODIS Aqua imageries. Changes in water quality due to the infrastructure of the two power plants are known through the Mann-Whitney U-Test and Spearman’s correlation analysis. This research shows that two Cirebon coal-fired power plant has a significant effect on changes in the quality of Mundu Bay waters. Changes in water quality are shown by a significant increase in TSS concentrations and SST values ​​accompanied by a decrease in chlorophyll-A levels and salinity levels. Changes in the quality of these waters also disrupt marine biota habitat and cause fishermen in around are difficult to get the ideal catchment yield.

Impact of Nuclear Power Plants of the Pwr-Type on River Water Quality (Case-Report of the River Meuse)

1982 ◽  
Vol 14 (4-5) ◽  
pp. 199-214 ◽  
Author(s):  
W J Masschelein ◽  
J Genot
Keyword(s):  
Water Quality ◽  
Case Report ◽  
River Water ◽  
Nuclear Power ◽  
Power Plants ◽  
River Water Quality ◽  
River Meuse ◽  
Physico Chemical ◽  
Inland Rivers ◽  
The Impact

Five years' experience with data of the TAILFER plant located 48 km downstream of the nuclear power site of GHOOZ is reported so as to provide guidelines for the examination of future nuclear cases. The factors considered are: the reduction in water flow and thermal impacts, the discharge of nuclear active effluents and the physico-chemical impact of enrichment in salts and suspended matter. Primary importance must be given to the proportion of the discharges in terms of added (instantaneous) volume activities. In the case of inland rivers the most active effluents, including the particular isotope tritium, are contained in a reduced volume (1400 m3/l000 MWe), and are best evacuated to other sites. Guidelines to check the river water quality are based on the measurement of 3H, total γ, and especifically, Go60, Cs13737, Mn54, Co58, and Cs134. Flow measurement and river transfer modelling must be part of the study of the impact as illustrated by this case-report.

Accident Sequence Precursor Analysis of Daya Bay and Lingao Nuclear Power Plants

2010 ◽  
Author(s):  
Pingping Liu ◽  
Haiying Xi
Keyword(s):  
Nuclear Power ◽  
Safety Assessment ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Nuclear Regulatory Commission ◽  
Daya Bay ◽  
Probabilistic Safety Assessment ◽  
Regulatory Commission ◽  
Probabilistic Safety

Firstly this article describes how to analyze accident sequence precursor in U.S. nuclear regulatory commission. Following this method, the licensee operational events, internal operational events and inspection reports of Daya Bay and Lingao Nuclear Power Plants were reviewed to identify the precursors with support of probabilistic safety assessment. All the identified precursors were calculated, documented and ranked. Then the trends on precursors can be obtained. Finally this article analyzes the trends available and gains many beneficial insights.

3D Immersive Display Application for Nuclear Education and Public Acceptance

2018 ◽  
Author(s):  
Bing Lam Luk ◽  
Miu-Ling Lam ◽  
Ting-Hsuan Chen ◽  
Jiyun Zhao ◽  
Suet Man Tsui ◽  
...  
Keyword(s):  
Hong Kong ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Reactors ◽  
Literacy Education ◽  
Public Understanding ◽  
Basic Knowledge ◽  
Daya Bay ◽  
Low Carbon ◽  
Low Carbon Energy

Immersive Virtual Reality (IVR) systems based on multiple stereoscopic projectors are very popular in many applications, such as training operators for nuclear power plants and surgeons for surgical operations. Due to the increasing number of nuclear reactors in Guangdong province of China, Hong Kong residents are concerned about the nuclear safety and impact on Hong Kong society. There is clearly a strong demand for nuclear literacy education in order to make the public aware of and accept nuclear energy. Thus, City University of Hong Kong has built an IVR system with a 9-meter diameter, 4-meter-height, 235° curved screen for nuclear literacy education. The actual CAD drawings of the Daya Bay nuclear power plant were used to recreate the virtual Daya Bay plant in our IVR system, emphasizing the reactor pressure vessel and steam generators inside the containment building. Visitors can enter the virtual containment building, and experience the actual operation environment in order to understand the basic knowledge of nuclear reactors. At present, the system is not only capable of illustrating the basic knowledge of nuclear reactor physics but also shows the normal and abnormal operations including reactor scram and emergency containment spray. In order to provide visitors with a full understanding of the role of nuclear power in Hong Kong’s fuel mix, a Low Carbon Energy Education Center (LCEEC) was set up in which the IVR system was the main attraction. Other low carbon energy sources are also introduced in LCEEC. The Centre was visited by thousands of visitors since its opening in April 2017. Surveys have been conducted to collect their comments and suggestions. The results showed that the IVR system is very helpful in raising public understanding of nuclear power.

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