石溪水库水环境容量研究

分析了江西宜春石溪水库的水环境状况,运用沃伦威德尔模型和狄龙模型等水库水环境容量计算方法,对石溪水库COD Mn、NH 3-N、TN、TP的水环境容量进行了计算。结果表明:石溪水库2012年水质为Ⅳ类,营养状态为中营养,入库的污染物量超出其自净能力。将水环境容量按照Ⅲ类和Ⅱ类水标准分为近期目标和远期目标,按近期目标CODM n、NH 3-N、TN、TP的超标率分别为7.6%、86.1%、121.1%、40.7%。在此基础上,分析了石溪水库水污染原因,提出了水污染控制方案。

Research of Water Environmental Capacity of Shixi Reservoir

In this paper,the status of water environment of Shixi Reservoir was analyzed.By use of the calculation methods such as Vollenweider model and Dillion model,water environmental capacity for CODMn,NH3-N,TN and TP in Shixi Reservoir was calculated.The results showed that water quality of Shixi reservoir in 2012 was Class Ⅳ and the nutritional status was in an intermediate level.The amount of pollutants discharged into Shixi reservoir exceeded its self-purification capacity.With regard to the water environmental capacity,a short-term goal was set to reach the Class Ⅲ water standard and a long-term goal was set to reach the Class Ⅱ water standard.According to the short-term goal,the standard rates of CODMn,NH3-N,TN and TP were 7.6％,86.1％,121.1％ and 40.7％ respectively.On the basis of the above,the causes for water pollution in Shixi Reservoir were analyzed and measures for water pollution control were proposed accordingly.