【摘 要】
：
为研究吞吐流对贡湖湾水环境的影响过程,应用MIKE21构建了吞吐流作用下太湖贡湖湾二维水动力与水质模型,分析TN、TP、NH3-N的转输与衰减过程与吞吐流的关系.研究表明:吞吐流对贡湖湾局部流场影响明显,入湖口处最大流速可达30 cm/s,而离入湖口较远区域最小流速仅为0.1 cm/s;在吞吐流持续影响30 d后,TN、TP、NH3-N的浓度值从人湖口至西南方向呈阶梯型降低;流量是决定吞吐流驱动水体交换效果的关键因素,随着吞吐流的加强,低浓度污染带范围逐步降低,在距望虞河口 7 km范围内各项污染物浓度衰
【机 构】
：
苏州科技大学环境科学与工程学院,江苏苏州215009;中建八局第三建设有限公司,江苏南京210046;昆山市自来水集团有限公司,江苏昆山,215300
论文部分内容阅读
为研究吞吐流对贡湖湾水环境的影响过程,应用MIKE21构建了吞吐流作用下太湖贡湖湾二维水动力与水质模型,分析TN、TP、NH3-N的转输与衰减过程与吞吐流的关系.研究表明:吞吐流对贡湖湾局部流场影响明显,入湖口处最大流速可达30 cm/s,而离入湖口较远区域最小流速仅为0.1 cm/s;在吞吐流持续影响30 d后,TN、TP、NH3-N的浓度值从人湖口至西南方向呈阶梯型降低;流量是决定吞吐流驱动水体交换效果的关键因素,随着吞吐流的加强,低浓度污染带范围逐步降低,在距望虞河口 7 km范围内各项污染物浓度衰减明显.
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