黄河兰州段COD_(cr)水质和水环境容量研究

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英文篇名：Study on Water Quality and Water Environmental Capacity of COD_(cr) in Lanzhou Section of the Yellow River 作者：王继梅 ; 孙三祥 英文作者：Wang Jimei;Sun Sanxiang;School of Environmental and Municipal Engineering,Lanzhou Jiaotong University; 关键词：水质模型 ; 黄河兰州段 ; 水环境 ; 环境容量 英文关键词：water quality model;;Lanzhou section of the Yellow River;;water environment;;environmental capacity 中文刊名：绿色科技 英文刊名：Journal of Green Science and Technology 机构：兰州交通大学环境与市政工程学院; 出版日期：2019-01-30 出版单位：绿色科技 年：2019 期：02 语种：中文; 页：75-78 页数：4 CN：42-1808/S ISSN：1674-9944 分类号：X52;X26

摘要

针对黄河兰州市段上游污染源较多的问题,采用一维水质模型和二维岸边排放模型段尾控制法分别对黄河兰州市段主要排污口至下游控制断面的水质情况及水环境容量进行了模拟计算。一维模拟结果表明:计算结果与实测值吻合较好,且研究区段COD_(cr)浓度未出现超标情况,但从浓度沿程变化来看,上游排污口的汇入会明显加大下游水体污染物的浓度。二维模拟结果表明:黄河兰州市段各主要排污口均尚有一定的环境容量,但上游污废水的排放会减小下游水体的纳污水平。
        Aimed at the problem of many pollution sources in the upstream of Lanzhou section of the Yellow River,the water quality and water environmental capacity of the main sewage outlets to the downstream control section of Lanzhou section of the Yellow River were simulated by using one-dimensional water quality model and two-dimensional coastal discharge model section end control model,respectively.One-dimensional simulation results show that the calculated results are in good agreement with the measured values,and the concentration of COD_(cr) in the study area does not exceed the standard.However,from the change of concentration along the course,the inflow of upstream sewage outlets will significantly increase the concentration of pollutants in downstream water.Two-dimensional simulation results show that the main sewage outlets in Lanzhou section of the Yellow River still have certain environmental capacity,but the discharge of sewage from the upstream will reduce the sewage level of the downstream water body.

引文

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