摘要
通过对西安市境内主要河流基本情况的分析,在给定河流水功能区现状的和规划的水质目标、设计流量、污染物综合衰减系数以及水质背景条件下,采用一维水质模型核算了河流水功能区的纳污能力;在调查分析现状年河流水环境状况和污染物入河量的基础上,预测了规划年生活和工业污染物的排放量和入河量;根据计算的纳污能力和污染物入河量,提出了规划年河流水功能区的污染物入河量控制方案,为西安市河流污染治理和水资源保护提供技术支撑。结果表明：规划年黑河污染物入河削减量任务最轻,COD入河削减量均为0,氨氮入河削减量2020年为1.6 t,2030年为0.6 t。灞河最为繁重,COD入河削减量2020年达到4215.2 t;2030年达到4401.8 t;氨氮2020年入河削减量达到624.5 t;2030年达到696.8 t。
Based on the analysis of the basic conditions of the main rivers in Xi＇an, under the conditions of the current and planned water quality objectives, the designed discharge, the comprehensive attenuation coefficient of pollutants and the water quality background of the river water function area, the one-dimensional water quality model is used to calculate the capacity of the river water function area. Based on the investigation and analysis of the water environment and the amount of pollutants entering the river in the current year,the discharge and the amount of pollutants into the river in the planning year are predicted. According to the capacity of pollutant absorption and the amount of pollutants entering into the river, a scheme of controlling the amount of pollutants entering the river in the planned year is put forward, which can provide technical support for the pollution control and water resources protection of Xi＇an river. Results show that the reduction of COD in Heihe River is 0 in the planning year, 1.6 t in 2020 and 0.6 t in 2030; the reduction of COD in Bahe reaches 4215.2 t in 2020, 4401.8 t in 2030, 624.5 t in 2020 and 696.8 t in 2020.
作者
史方方
Fangfang Shi(Xi＇an Water Resources Utilization Technical Service Center, Xi＇an Shaanx)
出处
《水资源研究》
2018年第2期207-214,共8页
Journal of Water Resources Research
关键词
纳污能力
污染物总量
控制方案
Fouling Capacity, Total Amount of Pollutants, Control Scheme
