摘要
闸控设施的存在,改变了天然河流的自然流态,闸控虽然在一定程度上提高了水资源利用效率,增强了洪水的调节能力,但从环保角度考虑,闸控却阻碍了水污染物正常的迁移扩散,并不利于污染物稀释降解。针对闸控上游的排污行为,现状情况下不能再以简单的湖泊模式或河流模式进行环境影响预测,应根据实际水文条件建立模型。本次针对江苏某污水处理厂拟设排口,设计了五种不同工况下的预测方案,并应用丹麦MIKE21建立模型进行模拟计算,结果表明拟设排污在不同工况下的影响范围和程度均不同,但总体来说影响均较小。
Dam regulation facilities changing the natural flow regime of natural rivers. Those facilities imporve the utilization efficiency ofwater resources, and also the capacity of the flood regulation, but from the environmental perspective, those hinder the normal migration anddiffusion of pollutants in water, and is harmful to the pollutant dilution degradation. Aiming at the upstream river of the discharge behavior.simple Lake mode or river model can not fit for The present situation in environmental impact prediction. It Should establish the modelaccording to the actual hydrological conditions. In this paper, take a a sewage treatment plant of Jiangsu for example, Design of five kindsof different working conditions of the prediction scheme, and the application of Danish MIKE21 to establish the model to simulate, Theresults show that the ansatz sewage range and degree of influence in different conditions are different, But in general, impact is very small.
出处
《环境影响评价》
2015年第1期86-91,共6页
Environmental Impact Assessment
