基于一维水质模型的新乡市河流纳污能力计算  

Calculation of Pollutant Receiving Capacity of Rivers in Xinxiang City Based on One-dimensional Water Quality Model

作　　者：王富强[1] 王雷[1] 荣飞[1] 

机构地区：[1]华北水利水电大学,河南郑州450045

出　　处：《华北水利水电大学学报（自然科学版）》2014年第5期81-84,共4页Journal of North China University of Water Resources and Electric Power：Natural Science Edition

基　　金：国家自然科学基金项目(51379078;51379079);广东省水利科技创新项目(2011-22)

摘　　要：河流纳污能力是指河流水体在一定规划设计条件下的最大允许纳污量,反映了水体污染物排放量与水质保护目标动态输入的关系.在系统评价新乡市主要河流水质现状、污染物排放状况基础上,利用一维水质模型,以河流主要污染物化学需氧量(COD)和氨氮作为控制因子,对污染物综合降解系数、背景浓度、水质目标等参数进行率定.以共产主义渠为例,计算其纳污能力,同理计算其他主要河流.计算结果显示,共产主义渠COD和氨氮的纳污能力分别为2 298.3 t/a和100.6 t/a;新乡市主要河流纳污能力COD为1.1万t/a、氨氮为0.05万t/a;结合入河污染物排放状况,到2020年新乡市COD和氨氮的入河控制量分别为22 603.8万t/a和2 060.5万t/a,削减量分别为17 699.7万t/a和2 349.0万t/a.Pollutant receiving capacity refers to the maximum allowable pollutant receiving amount of rivers under a certain design con- dition, and reflects the relationship between pollutant emissions and the dynamic input of water quality protection target. On the basis of systematic evaluation on the water quality of rivers and the pollutant emission condition in Xinxiang City, one-dimensional water quality model was useed to calibrate the parameters （k, Co, Cs, etc. ） and calculate the pollutant receiving capacity of Communism Canal and the same as other rivers by taking COD and NH3-N as the control factors and Communism Canal as an example. Calculation results show that COD and NH3-N receiving capacity of Communism Canal is 2 298.3 t/a and 100.6 t/a respectively, and the ones of main rivers is respectively 11 000 t/a and 500 t/a in Xinxiang city. The results also indicate that combined with the pollutant emission condition, calculated by the year 2020, the control quantity of pollutant poured into rivers of COD and NH3-N is 226. 038 million t/a and 20. 605 million t/a, the reduction quantity of COD and NH3-N is 176. 997 million t/a and 23.49 million t/a.

关 键 词：一维水质模型 河流纳污能力 入河污染物 总量控制 新乡市 

分 类 号：TV149.2[水利工程—水力学及河流动力学]