长江流域资源与环境 >> 2010, Vol. 19 >> Issue (z1): 153-.

• 生态环境 • 上一篇    下一篇

多目标排污规划模型在河岸污染源控制规划中的应用研究——以岷江干流宜宾市城区段为例

田晓刚,鞠美庭,何建,方自力,王琦   

  1. (1.南开大学环境科学与工程学院|天津 300071; 2.四川省内江水文水资源勘测局|四川 内江 641000;3.四川省环境保护科学研究院|四川 成都 610041)〖
  • 出版日期:2010-08-23

APPLICATION OF MULTIOBJECTIVE PLANNING MODEL FOR SEWAGE IN PLANNING OF POINT POLLUTION SOURCES CONTROL AROUND THE RIVER BANK——TAKING THE YIBIN SECTION OF THE MINJIANG RIVER AS AN EXAMPLE

TIAN Xiaogang1| JU Meiting1| HE Jian2, FANG Zili3, WANG Qi1   

  1. (1.College of Environmental Science and Engineering,Nankai University, Tianjin 300071, China; 2.Hydrology and Water Resources Survey Bureau of Neijiang, Neijiang 641000,China; 3.Sichuan Institute of Science and Technology of Environmental Protection, Chengdu 610041, China) 〖
  • Online:2010-08-23

摘要:

根据水域排污规划特点,在考虑污染物进入水体后扩散过程的基础上,建立了河流多目标排污规划模型,针对区域内各污染源的主要排污指标进行了宏观规划,确定污染源及其对应污染指标协同控制方案以及相应的治理要求,从而为区域水环境管理提供决策依据。在实例研究中,应用该模型对岷江干流宜宾城区段6个污染源的COD和氨氮指标排污进行规划,制定了排污规划方案Ⅰ;并结合方案Ⅰ的结果以及污水性质对排污口空间布局进行重新布局后,应用模型制定了排污规划方案Ⅱ。通过对排污规划前、排污规划方案Ⅰ以及排污规划方案Ⅱ 3种情况下,两类污染指标对岷江及长江的污染贡献比较分析,结果表明:两种排污规划方案都能较大幅度削减研究区污染源COD和氨氮排污对岷江及长江的污染贡献量,保证其水域水环境质量达到相应的标准;规划方案Ⅰ可以更充分的利用研究区水域的水环境容量,并在投入相对较少排污治理费用的情况下,实现水域水环境质量达标;规划方案Ⅱ则要求提高排污治理强度,需要投入相对较多的环保经费,但可在区域水环境质量达标的基础上,为区域发展预留更多的水环境容量。〖

Abstract:

Planning for controlling the sewage discharge of the point pollution sources around the river is complicated with both macro and micro factors.According to this characteristic,a multiobjective planning model based on simulating the course of pollutants diffusion and linear programming is presented to plan the sewage of several main pollutants from the point pollution sources and to define the corresponding requirement of controlling each pollution sources,which can be used as the basis for decision making of water environment management.In the case study,this coupled modeling approach is applied to plan the sewage of COD and NH4N from 6 point pollution sources around the Yibin section of the Minjiang River and the sewage planⅠ can be defined. Considering the results of the sewage plan Ⅰ and the characteristics of the waste water,the outlets of the pollution sources can be rearranged,and then the sewage plan Ⅱ can be obtained through the modeling approach.After comparing the pollution contribution of COD and NH4N to Minjiang River and the Yangtze River in the condition of implementation of no planning, the sewage planⅠ and the sewage planⅡ,the results show:the pollution contribution of COD and NH4N to the Minjiang River and the Yangtze River can be reduced considerably and the water environmental quality of the study area meet the standard in accordance with both two sewage plans.The sewage planⅠ can take fuller advantage of the water environment capacity of the study area and need lower investment for pollution controlling;while the sewage plan Ⅱ need to invest more to raise the intensity of pollution controlling of 4 new outlets,but it can offer more water environment capacity for regional development.〖

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