Adsorption mode and transportation ability of Fe in Tianjin shallow porous aquifer medium

In order to acknowledge the adsorption property of Tianjin shallow porous aquifer medium to Fe and the transportation law of Fe in salt and fresh water aquifer, seven soil samples were made using 2 bores' core in Baodi county and Dagang district. Static adsorption experiments and dynamic filtering pole experiments were conducted with FeSO₄ liquor simulating contamination. The results showed that the adsorption mode of soil samples to Fe was the Langmuir isothermal adsorption equation, and it was taken 3 500 days to transport 4 m for Fe in fresh aquifer then 4 400 days in salt aquifer. Therefore, the extra heavy concentration of Fe at individual sites would not induce large area of groundwater pollution.