晋江海域海水淡化排海盐度场三维数值模拟
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摘要
本文运用MIKE3数值模拟软件,建立了晋江海域海水淡化排海三维温、盐扩散模型,模拟了不同潮期、潮时盐度的水平和垂直方向扩散情况。结果表明,浓海水排海后盐度分布受水位和流速的影响,水位越高、流速越大,稀释和扩散作用越明显,在垂向上的扩散距离越小。规模20万t/d海水淡化工程浓海水排放对附近海域盐升的水平影响在几百米范围内,垂向影响在3m以内,且随着水位和流速的增加在水平和垂向上能够较快稀释扩散,在附近不存在环境敏感区的情况下,不会对海洋环境造成显著影响。
A 3 Dtemperature-salt numerical model of the sea area near Jinjiang was established,based on MIKE3,horizontal and vertical diffusion in different tide was simulated.The results show that brine distribution is affected by water level and current velocity,the higher the water level and velocity,the greater the effect of dilution and diffusion,and the smaller the vertical diffusion.The brine discharge from 200 000 t/d seawater desalination plant,the range of salt-rise is about hundreds of meters in horizontal and about 3 min vertical.With the increasing of water level and current velocity,the salt-rise is spreading quickly.If there is no sensitive area nearby,it will not have a significant impact on the marine environment.
A 3 Dtemperature-salt numerical model of the sea area near Jinjiang was established,based on MIKE3,horizontal and vertical diffusion in different tide was simulated.The results show that brine distribution is affected by water level and current velocity,the higher the water level and velocity,the greater the effect of dilution and diffusion,and the smaller the vertical diffusion.The brine discharge from 200 000 t/d seawater desalination plant,the range of salt-rise is about hundreds of meters in horizontal and about 3 min vertical.With the increasing of water level and current velocity,the salt-rise is spreading quickly.If there is no sensitive area nearby,it will not have a significant impact on the marine environment.
引文
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[12]WU Ya-jie,MEI Ning,LIANG Bing-Chen.Study on transport and diffusion of concentrated and heated brine under the action of tide in Jiaozhou Bay[J].Periodical of Ocean University of China,2008,38(6):1 029-1 034.武雅洁,梅宁,梁丙臣.高浓热盐水在胶州湾潮流作用下的输移扩散规律研究[J].中国海洋大学学报,2008,38(6):1 029-1034.
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[14]YIN Cui-fang.Study on numerical simulation of concentrated brine discharged from desalination plant[D].Nanjing:Nanjing University of Science&Technology,2010.尹翠芳.海水淡化浓缩水排放数值模拟研究[D].南京:南京理工大学,2010.
[15]ZHANG Fu-kun,LIU Shu-jing,RUAN Guo-ling.Study on the salinity distribution of brine discharge from seawater desalination plant in the Bohai Bay based on MIKE21[J].Marine Science Bulletin,2014,33(4):461-468.张拂坤,刘淑静,阮国岭.基于MIKE21的渤海湾海水淡化浓盐水排海盐度场分布研究[J].海洋通报,2014,33(4):461-468.
[16]LI Chun-hui,LI Rui-jie,XIAO Qian-lu,et al.3Dnumerical simulation of strong brine discharging into archipelagic channel[J].Journal of Marine Sciences,2016,34(4):39-45.李春辉,李瑞杰,肖千璐,等.群岛峡道浓盐水排放扩散的三维数值模拟[J].海洋学研究,2016,34(4):39-45.
[17]SUN Wen-xin,JIANG Wen-sheng,LI Lei.Numerical model of offshore environmental fluid dynamics[M].Beijing:Science China Press,2004.孙文心,江文胜,李磊.近海环境流体动力学数值模型[M].北京:科学出版社,2004.
[18]SMAGORINSKY J.General circulation experiment with the primitive equations[J].Monthly Weather Review,1963,91(3):99-164.
[19]ZHENG Wen-zhen,CHEN Fu-nian,CHEN Xin-zhong.Tides and tidal currents in the Taiwan Strait[J].Taiwan Strait,1982,1(2):1-4.郑文振,陈福年,陈新忠.台湾海峡的潮汐和潮流[J].台湾海峡,1982,1(2):1-4.
[20]DU Ling,ZUO Jun-cheng,ZHANG Jian-li.Simulation of tide and tidal current in the Taiwan Strait by finite element method[J].Transactions of Oceanology and Limnology,2005(4):1-9.杜凌,左军成,张建立,等.台湾海峡潮汐潮流的有限元模拟[J].海洋湖沼通报,2005(4):1-9.
[2]WANG Qiong,WANG Dong-chen,YE Lin.Effects and countermeasures of RO seawater desalination project on marine environment[J].Ocean Development and Mangemrnt,2010,27(9):24-25.王琼,王东衬,叶林.反渗透海水淡化工程对海洋环境的影响与对策[J].海洋开发与管理,2010,27(9):24-25.
[3]MA Xue-hu,LAN Zhong,WANG Si-fang,et al.Impact of discharges in seawater desalination on marine environment and progress of zero liquid discharge[J].Chem Ical Industry and Engineering Progress,2011,30(1):233-242.马学虎,兰忠,王四芳.海水淡化浓盐水排放对环境的影响与零排放技术研究进展[J].化工进展,2011,30(1):233-242.
[4]L Yan-hong,MA Yu-qi.Disscusion of the impact of discharge in seawater desalination on marine environment and zero liquid discharge[J].China New Technologies and Products,2015,5:167.吕艳红,马玉奇.浅谈海水淡化浓盐水排放对环境的影响及零排放技术[J].中国新技术新产品,2015,5:167.
[5]MISSIMERA T M,MALIVAB R G.Environmental issues in seawater reverse osmosis desalination:Intakes and outfalls[J].Desalination,2018,434:198-215.
[6]MOHAMED K A,ODEH M,AREIQAT A.Environmental impact assessment on a plant located inside a lagoon[J].Desalination,2005,185:45-56.
[7]ALAMEDDINE I,EI-FADEL M.Brine discharge from desalination plants:A modeling approach to an optimized outfall design[J].Desalination,2007,214:241-260.
[8]MALCANGIO D,PERTILLO A F.Modeling of brine outfall at the planning stage of desalination plants[J].Desalination,2010,254:114-125.
[9]PURNAMA A,SHAO Dong-dong.Modeling brine discharge dispersion from two adjacent desalination outfalls in coastal waters[J].Desalination,2015,362:68-73.
[10]SUN Jian,LI Wei,WANG Hong-li,et al.Numerical simulation of transport and difusion of brine discharged from desalination plant[J].China Water&Wastewater,2010,26(3):53-56.孙健,李伟,王红莉,等.海水淡化厂外排浓海水输移扩散数值模拟预测[J].中国给水排水,2010,26(3):53-56.
[11]WANG Xiao-meng,LIU Xue-hai,LIANG Sheng-kang,et al.The effect of brine on the distribution discharged from desalination plant of the salinity in the Jiaozhou Bay[J].Acta Oceanologica Sinica,2009,31(1):44-50.王晓萌,刘学海,梁生康,等.海水淡化排海浓海水对胶州湾盐度分布影响[J].海洋学报,2009,31(1):44-50.
[12]WU Ya-jie,MEI Ning,LIANG Bing-Chen.Study on transport and diffusion of concentrated and heated brine under the action of tide in Jiaozhou Bay[J].Periodical of Ocean University of China,2008,38(6):1 029-1 034.武雅洁,梅宁,梁丙臣.高浓热盐水在胶州湾潮流作用下的输移扩散规律研究[J].中国海洋大学学报,2008,38(6):1 029-1034.
[13]ZHAO Qian,CHEN Wei-bin,ZHANG Shu-fang,et al.Numerical simulation on influence of sea ice desalination on seawater salinity in Bohai Sea[J].Marine Environmental Science,2008,27(Supp.2):13-18.赵骞,陈伟斌,张淑芳,等.渤海海冰淡化对海水盐度影响的数值模拟[J].海洋环境科学,2008,27(增刊2):13-18.
[14]YIN Cui-fang.Study on numerical simulation of concentrated brine discharged from desalination plant[D].Nanjing:Nanjing University of Science&Technology,2010.尹翠芳.海水淡化浓缩水排放数值模拟研究[D].南京:南京理工大学,2010.
[15]ZHANG Fu-kun,LIU Shu-jing,RUAN Guo-ling.Study on the salinity distribution of brine discharge from seawater desalination plant in the Bohai Bay based on MIKE21[J].Marine Science Bulletin,2014,33(4):461-468.张拂坤,刘淑静,阮国岭.基于MIKE21的渤海湾海水淡化浓盐水排海盐度场分布研究[J].海洋通报,2014,33(4):461-468.
[16]LI Chun-hui,LI Rui-jie,XIAO Qian-lu,et al.3Dnumerical simulation of strong brine discharging into archipelagic channel[J].Journal of Marine Sciences,2016,34(4):39-45.李春辉,李瑞杰,肖千璐,等.群岛峡道浓盐水排放扩散的三维数值模拟[J].海洋学研究,2016,34(4):39-45.
[17]SUN Wen-xin,JIANG Wen-sheng,LI Lei.Numerical model of offshore environmental fluid dynamics[M].Beijing:Science China Press,2004.孙文心,江文胜,李磊.近海环境流体动力学数值模型[M].北京:科学出版社,2004.
[18]SMAGORINSKY J.General circulation experiment with the primitive equations[J].Monthly Weather Review,1963,91(3):99-164.
[19]ZHENG Wen-zhen,CHEN Fu-nian,CHEN Xin-zhong.Tides and tidal currents in the Taiwan Strait[J].Taiwan Strait,1982,1(2):1-4.郑文振,陈福年,陈新忠.台湾海峡的潮汐和潮流[J].台湾海峡,1982,1(2):1-4.
[20]DU Ling,ZUO Jun-cheng,ZHANG Jian-li.Simulation of tide and tidal current in the Taiwan Strait by finite element method[J].Transactions of Oceanology and Limnology,2005(4):1-9.杜凌,左军成,张建立,等.台湾海峡潮汐潮流的有限元模拟[J].海洋湖沼通报,2005(4):1-9.