摘要
采用二维水质模型对三峡库区汉丰湖流域流量、水位、污染源排放、水动力和水质进行模拟,依据国家标准和规范计算了2017年的三峡库区汉丰湖流域水环境容量。结果表明,三峡库区汉丰湖流域COD、氨氮(NH 3-N)、总氮(TN)、总磷(TP)的水环境容量分别为30596.93、2795.97、2882.35、144.12 t/a。目前三峡库区汉丰湖流域水体的COD、TN、TP已经达到水环境容量限值,属于饱和运行状态;NH 3-N污染负荷已基本接近维持现有水质功能下的水环境容量阈值。
A two-dimensional water quality model was used to simulate the discharge,water level,pollutant discharge,hydrodynamics and water quality of Hanfeng Lake Basin in the Three Gorges Reservoir Region.The water environmental capacity of Hanfeng Lake Basin in Three Gorges Reservoir Region in 2017 was calculated according to the national standards and standards.The results showed that the water environmental capacity of COD,NH 3-N,TN and TP in the Hanfeng Lake Basin of Three Gorges Reservoir Region were 30596.93 t/a,2795.97 t/a,2882.35 t/a and 144.12 t/a,respectively.At present,the COD,TN and TP of Hanfeng Lake Basin in Three Gorges Reservoir Region were close to the water environmental capacity,which belongs to the saturated operation state;the NH 3-N pollution load had basically approached the water environmental capacity threshold under the existing water quality function.
作者
何家军
樊连生
张慧
HE Jia-jun;FAN Lian-sheng;ZHANG Hui(School of Management,Wuhan University of Engineering,Wuhan,Hubei 430205;Yangtze River Engineering Supervision Consulting Co.,Ltd.,Wuhan,Hubei 430072;School of Chemistry and Environmental Engineering,Wuhan University of Technology,Wuhan,Hubei 430205)
出处
《安徽农业科学》
CAS
2020年第1期62-64,共3页
Journal of Anhui Agricultural Sciences
基金
教育部人文社会科学研究青年基金项目(17YJC840013,15YJC 840046)
武汉工程大学校内科学研究基金项目(K201818)
关键词
水环境容量
污染负荷
二维模型
汉丰湖流域
Water environmental capacity
Pollution load
Two-dimensional model
Hanfeng Lake Basin
