能源化工基地煤低温干馏污染特征研究

Study on Pollution Characteristics of Low Temperature Dry Distillation of Coal in Energy and Chemical Industry

在大气污染特征的研究中,采样点Q1的年均硝基多环芳烃的沉降通量最大,其他采样点供暖期内的硝基多环芳烃浓度均高于非供暖期;在水质污染特征的研究中,通过单因子污染指数计算综合水质表示指数,发现供暖期与非供暖期对水质的影响不明显,采样点Q1的水质污染程度明显严重于其他采样点;在土壤污染特征的研究中,选用Cr、Cd、Pb三种元素分析土壤的污染程度,选择不同风向的土壤进行测定,发现三种重金属元素在不同风向含量变化无明显规律,根据单项污染指数与综合污染指数特征进行判断可知,土壤总体为无污染状态。

In the study of air pollution characteristics,the average annual deposition flux of nitropahs in sampling point Q1 is the largest,and the concentration of nitropahs in other sampling points during heating period is higher than that during non-heating period.In the study of water pollution characteristics,the comprehensive water quality expression index was calculated by single factor pollution index.It was found that the influence of heating period and non-heating period on water quality was not obvious.The water pollution degree of sampling point Q1 was significantly more serious than that of other sampling points.In the study of soil pollution characteristics,with three element analysis has been Cr,Cd,Pb polluted soil,the study chooses a different direction of soil were measured and found three kinds of heavy metal element content in different wind direction changes have no obvious regularity,according to the characteristic of single pollution index and synthetic pollution index judgment,the soil for pollution-free state as a whole.