异龙湖流域水源污染调查及原位降氮关键技术研究  

Investigation of water source pollution and key technologies for in-situ nitrogen reduction in Yilong Lake

作　　者：沈春颖[1] 张宗亮 王铭明 王兰艳 杨卷 许广 蔡佳时 SHEN Chunying;ZHANG Zongliang;WANG Mingming;WANG Lanyan;YANG Juan;XU Guang;CAI Jiashi(Faculty of Electric Power Engineering,Kunming University of Science and Technology,Kunming 650500,China;School of Civil Engineering and Architecture,Zhejiang Sci-Tech University,Hangzhou 310018,China;Honghe Hani and Yi Autonomous Prefecture Water Conservancy and Hydropower Survey and Design Institute,Mengzi 661199,China)

机构地区：[1]昆明理工大学电力工程学院,云南昆明650500 [2]浙江理工大学建筑工程学院,浙江杭州310018 [3]红河哈尼彝族自治州水利水电勘察设计研究院,云南蒙自661199

出　　处：《水利水电科技进展》2024年第6期71-78,共8页Advances in Science and Technology of Water Resources

基　　金：国家自然科学基金项目(52269026)。

摘　　要：为确保颜洞、燕子洞提水回补异龙湖水体水质满足要求,对异龙湖流域泸江河团山—颜洞—燕子洞段水质状况和污染源开展了调查分析,结合该河段水质污染现状,设计了河道全方位的拦截、吸收、净化等措施组合的原位河流治理系统方案并开展了试验验证。结果表明:该河段污染严重,总氮质量浓度严重超标,岩溶污染突出,水质类别属于Ⅳ类及Ⅳ类以下;原位河流治理系统方案可使河道水质总氮污染得到明显改善,模拟河道上覆水、间隙水总氮质量浓度呈下降趋势,对上覆水总氮的实际平均削减率为49.99%。To ensure the quality of water from Yandong and Yanzidong,which is used to recharge Yilong Lake,meets the required standards,the water quality and pollution sources of Tuanshan-Yandong-Yanzidong section of the Lujiang River in Yilong Lake were investigated and analyzed.Based on the current water pollution status in this river section,an in-situ river management system combining comprehensive interception,absorption,and purification was developed and experimentally validated.The results show that the river section is severely polluted,with total nitrogen(TN)levels significantly exceeding standards,prominent karst pollution,and water quality classified as class IV or lower.The in-situ river management system can significantly improve TN pollution in the river section,the TN contents in the overlying and interstitial water of the simulated river channel show decreasing trends,with the actual average reduction rate for TN in the overlying water rate of 49.99%.

关 键 词：水源污染 生态水源 水质 总氮 原位降氮 异龙湖 

分 类 号：X52[环境科学与工程—环境工程]