湖泊岸线变化对水体污染物输移扩散影响研究  

Study on Influence of Lake Shoreline Change on Transport and Diffusion of Water Pollutants

作　　者：许猛 刘亚修 陈天力 Xu Meng;Liu Yaxiu;Chen Tianli(Zhejiang Institute of Mechanical&Electrical Engineering Co.,Ltd.,Hangzhou 310000,China;Hangzhou Huanyan Technology Co.,Ltd.,Hangzhou 310000,China;Hangzhou Municipal Ecology and Environment Bureau,Hangzhou 310000,China)

机构地区：[1]浙江省机电设计研究院有限公司,浙江杭州310000 [2]杭州环研科技有限公司,浙江杭州310000 [3]杭州市生态环境局,浙江杭州310000

出　　处：《环境科学与管理》2024年第2期39-43,共5页Environmental Science and Management

基　　金：杭州市科技发展计划项目(20220919Y181)。

摘　　要：为研究湖泊岸线变化情况对于水体污染物输移扩散的影响作用,选择某市的一个辖区,针对该辖区某湖泊岸线变化实施潮流场数值模拟。选用COD作为水体污染物实施输移扩散模拟,构建COD输移扩散模型。主要考虑6个点源的污染物输入,依据点源排污量分别在大潮与小潮作用的湖泊岸线变化情况下研究不同岸线类型的COD输移扩散情况。在大潮、小潮作用下,COD在修复岸线与自然岸线的输移扩散范围更小,在人工岸线的输移扩散范围大。可以看出,与人工岸线相比,自然岸线和修复岸线可以抑制COD在水体中的扩散范围。In order to study the influence of the change of lake shoreline on the transport and diffusion of water pollutants,a district of a city was selected to carry out numerical simulation of tidal current field for the change of lake shoreline in this district.COD is selected as water pollutant to simulate the transport and diffusion,and the transport and diffusion model of COD is constructed.The pollutant input from six point sources is mainly considered,and the COD transport and diffusion of different shoreline types are studied according to the pollutant discharge from point sources under the change of lake shoreline under the action of spring tide and low tide respectively.Under the action of high tide and low tide,the transport and diffusion range of COD is smaller on the restored coastline and natural coastline,but larger on the artificial coastline.It can be seen that compared with artificial coastline,natural coastline and restoration coastline can inhibit the diffusion range of COD in water.

关 键 词：岸线分类 水体污染物输移扩散 湖泊岸线 岸线类型 

分 类 号：X524[环境科学与工程—环境工程]