Please wait a minute...
Frontiers of Environmental Science & Engineering

ISSN 2095-2201

ISSN 2095-221X(Online)

CN 10-1013/X

Postal Subscription Code 80-973

2018 Impact Factor: 3.883

Front. Environ. Sci. Eng.    2014, Vol. 8 Issue (6) : 845-853    https://doi.org/10.1007/s11783-014-0708-3
RESEARCH ARTICLE |
A model of 90Sr distribution in the sea near Daya Bay Nuclear Power Plant in China
Jingyu WANG,Hongwei FANG(),Guojian HE,Lei HUANG
The State Key Laboratory of Hydro Science and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, China
 Download: PDF(999 KB)   HTML
 Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks
Abstract

The impact on the environment of radionuclide release from nuclear power plants has attracted increased attention, especially after the accident at Fukushima Daiichi Nuclear Power Plant in Japan. Based on the mechanisms of adsorption/desorption at solid/liquid interfaces and a surface micromorphology model of sediments, a theoretical expression of the distribution coefficient Kd is derived. This coefficient has significant effects on the distribution of radionuclide in seawater, suspended sediment and seabed sediment. Kd is then used to simulate 90Sr transport in the sea near the Daya Bay Nuclear Power Plant. The simulation results are compared with field measurements of tidal level, current velocity, suspended sediment concentration and 90Sr concentrations in the same period. Overall, the simulated results agree well with the field measured data. Thus, the derived expression for Kd is capable of interpreting realistic adsorption/desorption processes. What’s more, conclusion is drawn that about 40% 90Sr released by Daya Bay Nuclear Power Plant will be adsorbed by suspended sediment and 20% by seabed sediment, only about 40% 90Sr will remain in the sea near Daya Bay Nuclear Power Plant in South China Sea.

Keywords distribution coefficient      Daya Bay      hydrodynamic      sediment transport      radionuclide transport     
Corresponding Authors: Hongwei FANG   
Online First Date: 09 May 2014    Issue Date: 17 November 2014
 Cite this article:   
Jingyu WANG,Hongwei FANG,Guojian HE, et al. A model of 90Sr distribution in the sea near Daya Bay Nuclear Power Plant in China[J]. Front. Environ. Sci. Eng., 2014, 8(6): 845-853.
 URL:  
http://academic.hep.com.cn/fese/EN/10.1007/s11783-014-0708-3
http://academic.hep.com.cn/fese/EN/Y2014/V8/I6/845
Fig.1  Map showing the general location of Daya Bay
Fig.2  a) scanning electron microscope image of a sediment particle, and b) pores distributed on the surface
number a b
Fourier coefficient value Fourier coefficient value
1 a1 -0.004 b1 0.025
2 a2 0.007 b2 0.008
3 a3 0.014 b3 0.020
4 a4 0.038 b4 0.008
5 a5 0.035 b5 -0.028
6 a6 0.006 b6 -0.038
7 a7 -0.022 b7 -0.026
8 a8 -0.030 b8 0.001
9 a9 -0.016 b9 0.019
10 a10 0.001 b10 0.019
Tab.1  The values of Fourier coefficients (w = 1.0)
number parameter unit value
1 diffusion coefficient E m2·s-1 0.04
2 half-life time T year 27.7
3 f(Φ) 0.001
4 median diameter D50 m 0.05 × 10-3
5 sediment density ρs kg·m-3 2750
6 surface site density ρσ 1·m-2 6.9 × 1018
Tab.2  Summary of model parameters
Fig.3  The fitting results of distribution coefficient K d ( k a b = 0.0346 , and γ = 0.0487 )
Fig.4  The calibration results of tidal level and velocity
Fig.5  The calibration results of suspended sediment concentration
Fig.6  The calibration results of 90Sr concentrations in sea water (top) and on seabed sediment (bottom)
Fig.7  Simulated 90Sr concentrations (a) in sea water, (b) on suspended sediment, and (c) on seabed sediment
Fig.8  Simulated 90Sr transport from May 6, 1994 to May 10, 1995 at station R01
1 Zhu M X. Health effects and chelating measures of radionuclides. Carcinogenesis. Teratogenesis & Mutagenesis, 2011, 23(6): 468–472 (in Chinese)
2 Sakan S M, Sakan N M, Dordevic D S. Trace element study in Tisa River and Danube alluvial sediment in Serbia. International Journal of Sediment Research, 2013, 28(2): 234–245
https://doi.org/10.1089/ees.2008.0269
3 Fang H W, Chen M H, Chen Z H, Zhao H M, He G J. Effects of sediment particle morphology on adsorption of phosphorus elements. International Journal of Sediment Research, 2013, 28(2): 246–253
https://doi.org/10.1016/0265-931X(95)00050-K
4 Kumar A, Karpe R, Rout S, Joshi V, Singhal R K, Ravi P M. Spatial distribution and accumulation of 226Ra, 228Ra, 40K and 137Cs in bottom sediments of Mumbai Harbour Bay. Journal of Radioanalytical and Nuclear Chemistry, 2013, 295(2): 835–839
https://doi.org/10.1007/s10967-012-2166-3
5 Zheleznyak M J, Demchenko R I, Khursin S L, Kuzmenko Y I, Tkalich P V, Vitiuk N Y. Mathematical modeling of radionuclide dispersion in the Pripyat-Dnieper aquatic system after the Chernobyl accident. Science of the Total Environment, 1992, 112(1): 89–114
https://doi.org/10.1016/0048-9697(92)90241-J pmid: 1574708
6 Abril J M, Garcia-Leon M. A 2D 4-Phases marine dispersion model for radionuclides-Part 1: Conceptual and computational model. Journal of Environmental Radioactivity, 1993, 20(2): 71–88
https://doi.org/10.1016/0265-931X(93)90035-6
7 Nielsen S P. A box model for North-East Atlantic coastal waters compared with radioactive tracers. Journal of Marine Systems, 1995, 6(5-6): 545–560
https://doi.org/10.1016/0924-7963(95)00023-I
8 Harms I H. Modelling the dispersion of 137Cs and 239Pu released from dumped waste in the Kara Sea. Journal of Marine Systems, 1997, 13(1–4): 1–19
https://doi.org/10.1016/S0924-7963(96)00117-0
9 Jin L X, He M C, Zhang J H. Effects of different sediment fractions on sorption of galaxolide. Frontiers of Environmental Science & Engineering, 2012, 6(1): 59–65
https://doi.org/10.1007/s11783-010-0259-1
10 Mrabet R E, Abril J M, Manjón G, Tenorio R G. Experimental and modeling study of 241Am uptake by suspended matter in freshwater environment from southern Spain. Journal of Radioanalytical and Nuclear Chemistry, 2004, 261(1): 137–144
https://doi.org/10.1023/B:JRNC.0000030947.24584.dc
11 Periá?ez R. Modelling the environmental behaviour of pollutants in Algeciras Bay (south Spain). Marine Pollution Bulletin, 2012, 64(2): 221–232
https://doi.org/10.1016/j.marpolbul.2011.11.030 pmid: 22206725
12 Laissaoui A, Abril J M, Periá?ez R, León M G, Montafio E G. Kinetic transfer coefficients for radionuclides in estuarine waters: Reference values from 133Ba and effects of salinity and suspended load concentration. Journal of Radioanalytical and Nuclear Chemistry, 1998, 237(1–2): 55–61
https://doi.org/10.1007/BF02386662
13 Fang H W, Chen M H, Chen Z H. Surface pore tension and adsorption characteristics of polluted sediment. Science in China Series G-Physics Mechanics & Astronomy, 2008, 51(8): 1022–1028
https://doi.org/10.1007/s11433-008-0104-8
14 Fang H W, Zhao H M, Shang Q Q, Chen M H. Effect of biofilm on the rheological properties of cohesive sediment. Hydrobiologia, 2012, 694(1): 171–181
https://doi.org/10.1007/s10750-012-1140-y
15 Banin A, Gal M, Zohar Y, Singer A. Specific surface area of clays in lake sediments-measurement and analysis of contributors in Lake Kinneret, Israel. Limnology and Oceanography, 1975, 20(2): 278–282
https://doi.org/10.4319/lo.1975.20.2.0278
16 Kribi S, Ramaroson J, Nzihou A, Sharrock P, Depelsenaire G. Laboratory scale study of an industrial phosphate and thermal treatment for polluted dredged sediments. International Journal of Sediment Research, 2012, 27(4): 538–546
https://doi.org/10.1016/0025-3227(82)90112-8
17 Fang H W, Chen M H, Chen Z H. Surface Characteristics and Model of Environmental Sediment. Beijing: Science Press, 2009 (in Chinese)
18 Langmuir I. The adsorption of gases on plane surface of glass, Mica and Platinum. Journal of the American Chemical Society, 1918, 40(9): 1361–1403
https://doi.org/10.1021/ja02242a004
19 Chen Z Q, Wang G X, Xu G Y. Colloid and Interface Chemistry. Beijing: Higher Education Press, 2001 (in Chinese)
20 Levich V G. Physicochemical Hydrodynamics. New Jersey: Prentice Hall, 1962
21 Qian N, Wan Z H. Sediment Transport Mechanics. Beijing: Science Press, 1983 (in Chinese)
22 Wen X H, Du Q, Tang H X. Surface complexation model for the heavy metal adsorption on natural sediment. Environmental Science & Technology, 1998, 32(7): 870–875
https://doi.org/10.1021/es970098q
23 Chen Q W, Ma J F, Wang Z J, Huang G X. Biological early warning and emergency management support system for water pollution accident. Transactions of Tianjin University, 2012, 18(3): 201–205
https://doi.org/10.1007/s12209-012-1662-4
24 Peng W Q, Xue H, Sun D P, He S H. Study on numerical simulation of river sink. Journal of Hydraulic Engineering, 2002, (1): 16–22 (in Chinese)
25 Fang H W, Liu B, Huang B B. Diagonal cartesian method for numerical simulation of flow and suspended sediment transport over complex boundaries. Journal of Hydraulic Engineering, 2006, 132(11): 1195–1205
https://doi.org/10.1061/(ASCE)0733-9429(2006)132:11(1195)
26 Greimann B P, Muste M, Holly F M Jr. Two-phase formulation of suspended sediment transport. Journal of Hydraulic Research, 1999, 37(4): 479–500
https://doi.org/10.1080/00221686.1999.9628264
27 Wang J Y, Tang H S, Fang H W. A fully coupled method for simulation of wave-current-seabed systems. Communications in Nonlinear Science and Numerical Simulation, 2013, 18(7): 1694–1709
https://doi.org/10.1016/j.cnsns.2012.11.005
28 Shao X J, Wang X K. Introduction to River Mechanics. Beijing: Tsinghua University Press, 2005 (in Chinese)
29 Argonne National Laboratory, EVS Human Health Fact Sheet, 2006
30 Guangdong Research Institute of Water Resources and Hydropower. Numerical simulation report of low-level radioactive waste water discharge in Phase III Expansion Project of Lingao Nuclear Power Plant, 2007 (in Chinese)
31 Shi Z Q, Qu J Y, Cui Y L. Environmental radioactive contamination and its control for nuclear power plants. Radiation Protection, 1998, 18(4): 241–260 (in Chinese)
32 Liu G S, Zhou C Y. Contents and behavior characteristics of 137Cs and 90Sr in various mediums of Daya Bay. Journal of Oceanography in Taiwan Straits, 2000, 19(3): 261–268 (in Chinese)
[1] Rufeng LI,Chenghong FENG,Dongxin WANG,Baohua LI,Zhenyao SHEN. Multiphase redistribution differences of polycyclic aromatic hydrocarbons (PAHs) between two successive sediment suspensions[J]. Front. Environ. Sci. Eng., 2016, 10(2): 381-389.
[2] Xudong WANG, Shushen ZHANG, Suling LIU, Jingwen CHEN. A two-dimensional numerical model for eutrophication in Baiyangdian Lake[J]. Front Envir Sci Eng, 2012, 6(6): 815-824.
[3] Gaoxiang YING, John SANSALONE, Srikanth PATHAPATI, Giuseppina GAROFALO, Marco MAGLIONICO, Andrea BOLOGNESI, Alessandro ARTINA. Stormwater treatment: examples of computational fluid dynamics modeling[J]. Front Envir Sci Eng, 2012, 6(5): 638-648.
[4] Lixia JIN, Mengchang HE, Jinghuan ZHANG. Effects of different sediment fractions on sorption of galaxolide[J]. Front Envir Sci Eng, 2012, 6(1): 59-65.
[5] Haifeng JIA, Shuo WANG, Mingjie WEI, Yansong ZHANG. Scenario analysis of water pollution control in the typical peri-urban river using a coupled hydrodynamic-water quality model[J]. Front Envir Sci Eng Chin, 2011, 5(2): 255-265.
[6] Shufang WU, Pute WU, Hao FENG, G. P. Merkley. Effects of alfalfa coverage on runoff, erosion and hydraulic characteristics of overland flow on loess slope plots[J]. Front Envir Sci Eng Chin, 2011, 5(1): 76-83.
[7] ZHANG Junli, CHEN Jiajun, XU Jialin, LI Yuanxin, HUANG Naiming. Sediment environmental capacity of 137Cs in Daya Bay[J]. Front.Environ.Sci.Eng., 2007, 1(2): 202-206.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed