摘要
本实验重点关注湖泊水源地突发性苯酚污染事故中底泥表层的污染情况,建立数学模型并通过模拟实验,对污染发生后36 h底泥中苯酚浓度的连续监测,研究了污染时间、底泥深度、温度和pH对扩散的影响,验证了与上述四个因素相关的数学模型。结果表明:由于底泥对苯酚存在吸附—脱吸作用,需要对扩散系数进行修正,并且对于不同的底泥组成其修正方式需要通过实验数据得出。
This study is focused on the phenol contamination diffusion at the sediment surface of natural lake source.The mathematical model was established.Mimic experiments were conducted to continuously investigate the released phenol amount over a 36 hours period after the events happened.The influence parameters of pollution time,depth of sediment,temperatures and pH were discussed.Based on the experimental results,a mathematical model was established to describe the parameters.The results showed the theoretical diffusion coefficient needed to be amended because of the adsorption and desorption of sediment for phenol.In addition,diffusion coefficient of various kinds of sediment should be amended by experimental data.
出处
《河南预防医学杂志》
2011年第5期327-329,332,共4页
Henan Journal of Preventive Medicine
基金
江苏省教育厅2010年高等学校大学生实践创新训练计划科研项目(编号2010556)
关键词
水源地
湖泊底泥
污染
苯酚
water resource
lake sediment
contamination
phenol
