溧阳重点流域污染源解析研究.pdf

Journal of Water Resources Research 水资源研究, 2016, 5(1), 59-64 Published Online February 2016 in Hans. /journal/jwrr /10.12677/jwrr.2016.51007 Source Apportionment of Water Pollutants in Key Rivers of Liyang City Zhenxu Huang1,3, Yu Chen1, Tao Zhou2, Xianguo Dong2, Yan Ren2, Yongsong Mo2, Mingli Qian2, Yuan Liang1*, Yong Xu4 1Suzhou University of Science and Technology, Suzhou Jiangsu 2Liyang Environmental Monitoring, Changzhou Jiangsu 3Suzhou Ketai Environmental Technology Company co., LTD, Suzhou Jiangsu 4Suzhou Branch of Jiangsu Provincial Hydrology and Water Resources Investigation Bureau, Suzhou Jiangsu Received: Jan. 7th, 2016; accepted: Jan. 24th, 2016; published: Feb. 5th, 2016 Copyright ? 2016 by authors and Hans Publishers Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). /licenses/by/4.0/ Abstract Source apportionment can provide the basis for comprehensive improvement of water environment. Based on the investigation and mathematical model, this paper estimated water pollutants emission and contri- bution from point source and non-point source in the key rivers of Liyang city. The results show that: the fishery, rural domestic sewage and city sewage treatment plant are the main water pollutant sources. The contribution of water pollutants from industrial emission source is small and the water pollutants emis- sion from is increased from 2011 to 2013. The loss of the total nitrogen and total phosphorus from farm- land accounted for 46.24% and 46.88% respectively. The loss of COD and total phosphorus from fishery accounted for 26.01% and 40.83% respectively and the pollutant contribution kept increasing. The con- tribution of COD, ammonia nitrogen, total nitrogen and total phosphorus from point source is 37.12%, 44.02