辽宁省池塘养殖废水排放的分布及其对水环境的影响

Distribution and Impact of Effluents in Aquaculture Ponds on Aquatic Environments in Liaoning Province

对我国第一次污染源普查辽宁省池塘养殖业污染源普查数据进行统计分析,2007年度辽宁省池塘养殖业养殖总面积为4.70×104 hm2,排水总量为1.08×1010 m3;主要污染物排放量分别为总氮1546.23t,总磷123.31t,化学需氧量11102.91t,铜-717.03kg,锌5266.87kg。分析了池塘养殖业养殖废水对水环境的影响,并针对减少池塘养殖业的污染物排放、改善水环境质量提出了相应的建议和措施。

A statistical analysis of the pollution sources in aquaculture ponds was conducted based on the census data of first-time Chinese pollution sources in Liaoning Province.The findings revealed that there was a total area of 4.70×104 hm2 for aquaculture ponds in Liaoning Province in 2007and the total drainage amount of 1.08×1010 m3.The discharge amount of the main pollutants was found to be 1546.23tin nitrogen,123.31tin total phosphorus,11102.91tin COD,717.03kg in copper,and 5266.87kg in zinc. The effects of the effluents from the aquaculture ponds on aquatic environments are discussed,and measurements of reduction in the pollutants released from the aquaculture ponds are suggested,leading to improve aquatic environment.