Study On The Water Environmental Capacity Of Fuyang River In Handan

This paper has investigated sources of pollution of Fuyang river of Handan section,and evaluated the top ten industries in Handan by the equal-standard waste load method,and evaluated the water quality monitoring results of Fuyang river of Handan section fromJanuary to December in2013by the method of single pollution exponent and weightedcomposite index. Then through the experiment of tracking water mass, using onedimension water quality model to rate degradation coefficient of different reaches ofFuyang river of Handan section. According to the rate of75%of the minimum day flow asdesign flow, to calculate the ammonia nitrogen and CODCr environment capacity usingthe water environment capacity E that is equal to the permitting quantity W as the waterenvironment capacity calculation model, which can provide basis of water managementfor Handan, then achieved the following main results:1) The pollution load ratio of Handan Iiron and Steel Group Co., LTD., Hanbao Ironand Steel Co., LTD., Ci County Yu Liang Wine Industry Co.,LTD., Handan Liyuan TextileCo.,LTD. are respectively56.46%,25.47%,5.77%and4.11%. Which accounted for90%of allpollution load ratio, are the main sources of Fuyang river.2) The main pollutants of the river are ammonia nitrogen、CODCr and total nitrogen.3) Water pollution changes along the river: upstream water quality of Fuyang river ofHandan section from Zhangs’ store station bridge to Zhangzhuang bridge belongs to thesecondary still clean water; midstream water quality of Fuyang river of Handan sectionfrom Zhangzhuang bridge to the Xiyan village has been seriously polluted; downstreamwater quality of Fuyang river of Handan section from Zhangzhuang bridge to Guoqiaobridge has been slightly polluted.4) The degradation coefficient of CODCris0.27d-1and ammonia nitrogen is0.32d-1ofFuyang river upstream; the degradation coefficient of CODCris0.21d-1and ammonianitrogen is0.25d-1of Fuyang river downstream.5) The CODCrenvironment capacity is4081kg/d， ammonia nitrogen environmentcapacity is282kg/d from the Zhangs’ store station bridge to Zhangzhuang bridge; theCODCrenvironment capacity is-15121kg/d, ammonia nitrogen environment capacity is-2094kg/d from Zhangzhuang bridge to the Xiyan village; the CODCrenvironmentcapacity is-6426kg/d， ammonia nitrogen environment capacity is-899kg/d from Zhangzhuang bridge to Guoqiao bridge.