深圳河湾水质数值模拟研究  

Numerical simulation of water quality of Shenzhen Bay

作　　者：万由鹏 毛献忠[2] 

机构地区：[1]深圳市环境科学研究院国家环境保护饮用水水源地管理技术重点实验室深圳市饮用水水源地安全保障重点实验室,广东深圳518001 [2]清华大学深圳研究生院环境工程与管理研究中心,广东深圳518055

出　　处：《水利水电技术》2015年第2期44-47,共4页Water Resources and Hydropower Engineering

基　　金：广东省水利科技创新项目(2011-27);水利部公益性行业科研专项(201201033)

摘　　要：基于EFDC模型和WASP模型建立了深圳河湾水动力和水质模型,采用2011年实测数据对模型进行率定和验证,结果表明,计算值与实测值吻合较好,丰枯季高低潮位平均误差小于0.20 m,DO、BOD5平均误差小于20%,TN、TP和Chl a(叶绿素a)平均误差小于30%。在此基础上进行案例研究,研究结果表明,氮、磷营养盐负荷削减80%对藻类生长的影响不明显;削减95%负荷时,Chl a浓度下降40%。Based on EFDC and WASP models,the model for hydrodynamics and water quality of Shenzhen Bay is established,and then it is calibrated and validated in accordance with the measured data of 2011. The result shows that the calculated values well coincide with the measured ones with the mean errors of less than 0. 20 m for both the high and low tidal levels,the mean error of less than 20% for DO,BOD5 and the mean error of less than 30% for TN,TP and Chl- a. On the basis of this,a case study is made,and the result shows that the 80% reduction of the nutritive salt of nitrogen and phosphorus has a little impact on algae growth,and the Chl- a is to be decreased by 40% in case of the reduction of 95%.

关 键 词：深圳河湾 水质 EFDC模型 WASP模型 数值模拟 

分 类 号：X522[环境科学与工程—环境工程]