临淮岗工程不同蓄水条件下的水质可达性分析  

Analysis of water quality in different water storage conditions of Linhuaigang water control project

作　　者：胡开明[1] 逄勇[1,2] 王华[1] 屈健[1] 田威[3] 

机构地区：[1]河海大学环境科学与工程学院,江苏南京210098 [2]河海大学浅水湖泊综合治理与资源开发教育部重点实验室,江苏南京210098 [3]江苏省水文水资源勘测局,江苏南京210029

出　　处：《水资源保护》2010年第4期13-16,共4页Water Resources Protection

基　　金：国家自然科学基金(50579015);国家水体污染控制与治理科技重大专项(2008ZX07101-001-02;2008ZX07101-002;2008ZX07101-006;2009ZX07528-005-03-02)

摘　　要：建立临淮岗工程淹没区在不同蓄水条件下的二维非稳态FVS格式水流水质模型,基于水量、水质同步实测数据对模型进行率定验证。运用所建模型对研究区域水流水质过程进行数值模拟,定量分析了研究区域在最不利条件下对临淮岗坝前水质的影响程度。对不同库容条件下在库区北部农业用水时的库区水质浓度场进行计算分析,结果表明:当上游边界来水为功能区Ⅲ类,临淮岗坝前COD、NH3-N和TP浓度都能达到GB 3838—2002Ⅲ类水质标准;当边界条件为枯水期水质时,临淮岗坝前的NH3-N浓度超标,超标率为28%,COD及TP均能达标。A 2D unsteady hydrodynamic water quality model in the FVS form for a submerged area of Linhuaigang in different capacity conditions was established,and the simultaneous hydrodynamic and water quality data were used to calibrate and verify the model.Using the numerical model,the hydrodynamic and water quality processes of the studied area were simulated,and the impacts on the water quality in front of the Linhuaigang Dam in the most adverse conditions were quantitatively estimated.The results of water quality concentration fields calculation and analysis in different capacity conditions with water intake in the northern reservoir showed the following： when the inflow of the upstream boundary met the level III standard of the water function zone,the chemical oxygen demand（COD）,ammonia nitrogen（NH＋3-N）,and total phosphorus（TP） in front of the Linhuaigang Dam reached the level III standard of Environmental Quality Standards for Surface Water（GB 3838—2002）;when the boundary condition was the water quality in the dry season,the above-standard rate of NH＋3-N was 28%,and both COD and TP reached the standard as well.

关 键 词：临淮岗 蓄水条件 水质可达性 二维非稳态FVS格式水流-水质模型 

分 类 号：X824[环境科学与工程—环境工程]