海河流域河流污染物综合降解系数研究  

Study on the Comprehensive Degradation Coefficient of River Pollutants in Haihe River Basin

作　　者：石维[1] 刘德文[1] 郭丽峰 SHI Wei;LIU Dewen;GUO Lifeng(Institute of Water Resources Protection,Haihe Water Conservancy Commission,Ministry of Water Resources,Tianjin 300170,China;Center of Eco-environmental Monitoring and Scientific Research,Administration of Ecology and Environment of Haihe River Basin and Beihai Sea Area,Ministry of Ecology and Environment of People′s Republic of China,Tianjin 300170,China)

机构地区：[1]水利部海河水利委员会水资源保护科学研究所,天津300170 [2]生态环境部海河流域北海海域生态环境监督管理局生态环境监测与科学研究中心,天津300170

出　　处：《华北水利水电大学学报（自然科学版）》2021年第1期47-52,共6页Journal of North China University of Water Resources and Electric Power：Natural Science Edition

基　　金：水体污染控制与治理科技重大专项(2018ZX07101005)。

摘　　要：以海河流域漳卫南运河水系的卫河和卫运河为试点河流,采用二断面法,开展了污染物综合降解系数(K)的野外和室内实验研究,以期为水资源保护工作中计算纳污能力、制定限制排污总量意见等提供参考。野外监测实验结果表明:卫河的COD、氨氮和BOD_(5)平均综合降解系数分别为0.08、0.46、0.16 d^(-1);卫运河的COD、氨氮和BOD_(5)平均综合降解系数分别为0.09、0.73、0.24 d^(-1)。氨氮综合衰减系数的室内和野外结果相差不大,而COD和BOD_(5)综合衰减系数的室内结果均小于野外结果。原因可能为:一是水样中氨氮质量浓度较高,因此容易降解;二是室内和野外环境存在较大差异,水温、流速、风速等都会影响污染物的降解。Taking the Wei River and Wei Canal of Zhangweinan Canal system in the Haihe River Basin as experimental rivers,the field and indoor experiments of the comprehensive degradation coefficient of pollutants(K)are carried out by using two section method.It is expected to provide a reference for the calculation of pollutant carrying capacity and formulating opinions on limiting the total amount of pollutant discharge in water resources protection.The results of field monitoring experiments show that the average comprehensive degradation coefficients of COD,ammonia nitrogen and BOD 5 in Wei River are 0.08 d^(-1),0.46 d^(-1) and 0.16 d^(-1) respectively.The average comprehensive degradation coefficients of COD,ammonia nitrogen and BOD 5 in Wei Canal are 0.09 d^(-1),0.73 d^(-1) and 0.24 d^(-1) respectively.The indoor and field results of ammonia nitrogen comprehensive attenuation coefficient are similar,while the indoor results of COD and BOD 5 comprehensive attenuation coefficient are less than the field results.The reasons are as follows.Firstly,the concentration of ammonia nitrogen in the water sample is high,so it is easy to degrade Secondly,there are big differences between indoor and outdoor environments.Water temperature,flow rate,wind speed,etc.will affect the degradation of pollutants.

关 键 词：海河流域 河流 污染物综合降解系数 

分 类 号：X323[环境科学与工程—环境工程]