柴油挥发行为的研究

Volatilization Behaviors of Diesel Oil

对柴油进行了在玻璃表面皿上和在土壤中的挥发实验研究。在玻璃表面皿的挥发实验中,进行了30℃条件下柴油与90#汽油、煤油及沙特原油挥发的对比实验。实验结果表明,柴油和煤油的挥发量与挥发时间呈指数关系,而90#汽油与沙特原油的挥发量与挥发时间呈对数关系。柴油在土壤中的挥发实验表明,土壤质地、土壤的含水量及柴油浓度都影响柴油的挥发量。土壤中的柴油污染物有一种向上运动的所谓“灯芯”作用,适度的土壤含水量会促进“灯芯”作用,而过高的含水量则抑制其发生。

The experiments on volatilization of diesel oil on watch - glass and in soil were carried out. In the experiments on watch - glass, the volatilization of diesel oil, 90^# gasoline, kerosene and crude oil from Saudi Arabia were conducted at the temperature of 30 ℃. The results show that the volatilization of diesel oil and kerosene is exponentially related to volatizing time, whereas that of 90^# gasoline and crude oil from Saudi Arabia logarithmically related. The experiments on volatilization of diesel oil in soil indicate that the soil texture and moisture, and the diesel oil concentration can all affect the volatilization of diesel oil. Diesel oil in soil has a behavior of moving upward called as ＂wicking action＂, and inhibited with too much water. which can be promoted with appropriate soil moisture