四川环境2018，Vol.37Issue(1)：44-50,7.
岷江大桥控制单元水体氨氮和总磷源解析
Source Apportionment of Ammonia Nitrogen and Total Phosphorus of Minjiang Bridge Control Unit
摘要
Abstract
The Minjiang river bridge was a state-controlled unit of Minjiang basin,its water quality was assessed by the single-factor method,and its main pollution source and change were analyzed by the proportion of the pollution sources,and temporal and spatial changes of the pollutants.It was shown that the main over-standard factors were ammonia nitrogen and total phosphorus,mainly due to excessive discharge of urban sewage and livestock wastewater.By the proportion of the pollution sources,the two main sources ammonia nitrogen and total phosphorus contribute for 42.54％ and 35.31％,respectively.Influenced by upstream and other inflow resources,the concentration of ammonia nitrogen was way beyond the standard from January to May,and peak at April,2013.The concentration of total phosphorus was generally beyond the standard in 2011 ～2014,and peak at May,2014.Because of the reinforced control during the 12th five-year,the pollution tendency of ammonia nitrogen was controlled and the concentration of total phosphorus was reduced in 2015.MIKE 21 two-dimensional hydrodynamic model showed that the Minjiang river bridge section could reach the standard if the upstream branches met the requirements and the pollution load gets effective controlled.Finally,the strategy for the control unit was set up from the source reduction,regional comprehensive regulation and the whole process management.关键词
氨氮/总磷/污染/达标/岷江Key words
Ammonia nitrogen/total phosphorus/pollution/reach the standard/Minjiang River分类
资源环境引用本文复制引用
陈亚平,岳艾儒,韦娅俪,杨长军..岷江大桥控制单元水体氨氮和总磷源解析[J].四川环境,2018,37(1):44-50,7.基金项目
四川省重点研发项目(2017SZ0028). （2017SZ0028）
