Characteristics of distribution and transport of petroleum contaminants in fracture-karst water in Zibo Area, Shandong Province, China

摘要

Fracture-karst water is an important water resource for the water supply in North China. Petroleum contamination is one of the most problematic types of the groundwater pollution. The Characteristics of distribution and transport of the petroleum contaminants in fracture-karst water Are different from those in porous water. The flow velocity of fracture-karst water is much faster Than the velocity of porous water on an average. Therefore, contaminant transport in fracture-karst Water is an absolute advection-dominated problem. The plume of the petroleum contamination May extend to several kilometers from pollution sources. It was not caused by the oil pool floating On the water table but by the oil components dissolved and scattered in groundwater. The distribu- tion of the petroleum contaminants over space are concentrated in the strong conductive zone on The plane.