学术
长江口南港化学需氧量动力学模型的应用
严以新[1,2] 张素香[1,2] 李熙[2]
[1]河海大学水文水资源与水利工程科学国家重点实验室,南京210098 [2]河海大学交通与海洋工程学院,南京210098
摘 要:
分析了长江河口南港的化学需氧量（Chemical Oxygen Demand，即COD）的断面分布实测数据。应用Hydroqual公司的环境生态动力学模型EFDC在长江河口河段建立了三维的化学需氧量动力学预测模型，用此模型得出南港区域的化学需氧量的三维空间分布及其随时间的沿程变化。数值结果显示该区域化学需氧量分布趋势大体为：排污口附近较多，枯水期更为明显；丰水期由于长江径流的稀释作用，其浓度大大降低；将数值模拟的结果和现场观测值进行了对比，表明三维环境生态动力学模型EFDC是基本可行的预测模式。[著者文摘]
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文章出处:
《水道港口》-2007年28卷4期 -278-281页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1005-8443（2007）04-0278-04
3D hydro environmental model of COD distribution in Nangang of Yangtze estuary
YAN Yi - xin, ZHANG Su - xiang, LI Xi （ 1. State Key Laboratory of Hydrology - Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China;2. Department of Ocean Engineering, Hohai University, Nanjing 210098, China ）
Abstract:
By application of hydro environmental model EFDC of Hydroqual Co. in Nangang of Yangtze estuary, temporal and special variation of chemical oxygen demand （COD） distribution was obtained by setting up a 3D water quality calculation. Also field observation data were available and compared with the numerical results. It is concluded in dry season and neap tide concentration of COD is much higher than in flood season and high tide, also prove the EFDC model is of satisfactory accuracy in water quality modeling of Yangtze estuary.[著者文摘]
Key words:
chemical oxygen demand; Yangtze mixing; hydro environmental model
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