摘要
为保证南京市浦口区城南河龙王庙断面水质稳定达标,综合考虑水文、水质和污染源现状,对研究区域入城南河的污染源进行排污口概化,构建水环境数学模型,计算得到基于龙王庙断面水质达标的城南河水环境容量,以此与现状入河的污染物量比较,确定污染物的削减比例。结果表明:在保证龙王庙断面水质达标的情况下,城南河COD、NH+4-N和TP的水环境容量分别为2 183 t/a、201 t/a和154 t/a,污染物削减率与水质超标率的差距在20%以内。
In order to ensure the water quality of Longwangmiao Section of Chengnan River in Pukou District of Nanjing City to reach the standard,considering the hydrology,water quality,and pollution source status,the pollution source of the Chengnan River into the study area was generalized and the water environment mathematical model was established.The water environmental capacity of Chengnan River was calculated based on the water quality of Longwangmiao Section,and the reduction ratio of pollutants was determined by comparing with the pollutant quantity entering the river.The results show that the environmental capacity of COD,NH 3-N,and TP is 2 183 t/a,201 t/a,and 154 t/a,respectively,under the condition that the water quality of Longwangmiao Section reaches the standard.And the difference between pollutant reduction rate and water quality exceeding standard rate is less than 20%.
作者
瞿一清
逄勇
QU Yiqing;PANG Yong(College of Environment,Hohai University,Nanjing 210098,China;Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes,Ministry of Education,Hohai University, Nanjing 210098,China)
出处
《水资源保护》
CAS
CSCD
北大核心
2018年第5期76-80,共5页
Water Resources Protection
关键词
水环境容量
水质达标
城南河
龙王庙断面
water environmental capacity
water quality standard
Chengnan River
Longwangmiao Section
