满足水功能区管理目标的中小河流纳污能力计算方法及参数取值研究  

Research of water environment pollution bearing capacity calculation method for small and medium rivers and parameters analysis

作　　者：李䶮 杨寅群[3] 王艳[4] 刘路广 LI Yan;YANG Yinqun;WANG Yan;LIU Luguang(Hubei Water Resources Research Institute,Wuhan 430070,China;Hubei Jinlang Survey and Design Co.,Ltd,Wuhan 430070,Chi-na;Changjiang Water Resources Protection Institute,Wuhan 430051,China;School of Resources and Environmental Sciences,Wu-han University,Wuhan 430079,China;Hubei Water Saving Research Center,Wuhan 430070,China)

机构地区：[1]湖北省水利水电科学研究院,湖北武汉430070 [2]湖北金浪勘查设计有限公司,湖北武汉430070 [3]长江水资源保护科学研究所,湖北武汉430051 [4]武汉大学资源与环境科学学院,湖北武汉430079 [5]湖北省节水研究中心,湖北武汉430070

出　　处：《水利水电快报》2021年第10期81-87,共7页Express Water Resources & Hydropower Information

基　　金：湖北省省直部门科研项目(2019-218-006-002);湖北省水利重点科研项目(HBSLKY201814)。

摘　　要：由于传统中小河流水域纳污能力计算模型在模型概化、设计水文条件、水流速度、降解系数取值等方面受使用者主观影响较大,实际应用中在一定程度上制约了水环境管理目标.采用概化模型分析了传统方法的自洽性,提出了满足各类水功能区水质管理目标的中小河流纳污能力计算模型的改进方法,并在模型方法的主要参数敏感性分析及误差分析的基础上,提出了模型概化和参数取值原则,以降低主观因素对纳污能力计算结果的影响。结果表明:该方法能够保证计算结果既满足设计水文条件下的最大允许排污量,也满足水功能区水质管理目标,具有良好的通用性。Because the traditional calculation model of the pollution bearing capacity of small and medium rivers has problems of subjective affection of users in model generalization,design hydrological conditions,flow speed,degradation coefficient value,etc.,which gives a restriction to water environment management goals to a certain extent in practical application.The generalized model is employed to analyze the self-consistency of the traditional method,and an improved method for the calculation model of small and medium-sized rivers is proposed to meet the water quality management objectives of various water function zones,and on the basis of sensitivity analysis and error analysis of the main parameters of the model method,the principles of model generalization and parameter selection are proposed to reduce the influence of subjective factors on the calculation results of pollution bearing capacity.The results show that this method can ensure that not only the calculation result is the maximum allowable sewage discharge under the designed hydrological conditions,but also meets the water quality management objectives of the water function zone,and has good versatility.

关 键 词：中小河流纳污能力 概化模型 误差分析 参数取值 水功能区 

分 类 号：X26[环境科学与工程—环境科学]