Abstract: High osmosis percolation testing device are designed to simulate the process of contaminated shallow groundwater causes deep groundwater pollution when leakage occurs in the aquitard.The natural attenuation experiment of organic pollutants(phenanthrene) through saturated soil aquitard is specially examined.Experiment of the benthic impact of non-living factor-ligand on the transformation of phenanthrene in the aquitard is also conducted.The results show that the attenuation curve can apparently ...