博斯腾湖有机物污染改善方案研究  

Study on the project of reducing organic pollutants in the Bosten Lake

作　　者：胡春明[1] 娜仁格日乐 马金锋[1] 秦晶[1] 尤立[1] HU Chun-ming;Narengerile;MA Jin-feng;QING Jin;YOU Li(Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;Institute of Lake Bosten,Bayingolin Mongolia Autonomous Prefecture of Xinjiang,Korle 841000,Xinjiang,China)

机构地区：[1]中国科学院生态环境研究中心,北京100085 [2]新疆巴音郭楞蒙古自治州博斯腾湖科学研究所,新疆库尔勒841000

出　　处：《干旱区研究》2020年第2期428-434,共7页Arid Zone Research

基　　金：中国科学院中-斯海上丝绸之路联合科教中心子项目中-斯水技术研究与示范联合中心。

摘　　要：博斯腾湖径流入湖、出湖口过近的水文现状对有机物浓度及其空间分布形成制约。采用MIKE21软件构建水动力水质二维数值模型,分析工程方案对博斯腾湖有机物污染的改善效果。根据模拟结果以及配对样本T检验分析:在现状基础上实施扬水站东移或引开都河水3×10^8m^3·a^-1进入黄水沟,均可显著改善博斯腾湖有机物污染,年均化学需氧量(COD)浓度分别降低13.4%和8.91%;两方案同时实施效果更为显著,年均COD浓度降低20.2%;通过工程实施改善博斯腾湖有机物污染切实可行。但在流域尺度上,工程方案仅改变了有机物平衡而未改变总量,博斯腾湖有机物污染改善源于污染物转移至下游孔雀河。The contiguous river estuary and outfall influence the discharge of organic pollutants,which limit the concentration and spatial distribution of the organic pollutants in the Bosten Lake.Various projects should be conducted to optimize the current hydrological conditions.The MIKE21 software was applied to establish a two-dimensional numerical model and analyze the effects of different intervention projects.According to the simulation results and the paired sample T-test results,the annual chemical oxygen demand concentration in the Bosten Lake could be reduced by 13.4% by moving the outfall from the southwest to the southeast,8.91% by diverting 3 × 10^8 m^3·a^-1 of the runoff from the Kaidu River to the Huangshuigou River,and 20.2% by implementing both these projects.The results denote that it is feasible to reduce the organic pollutants in the Bosten Lake by optimizing the hydrological conditions.However,these projects only changed the proportion of the organic pollutants in the Bosten Lake,they did not reduce the quantity of organic pollutants in the basin.The organic pollutants were diverted into the Kongque River downstream.

关 键 词：博斯腾湖 有机物污染 MIKE21 COD 水文条件 

分 类 号：X524[环境科学与工程—环境工程]