The Study of PAM Adsorption and Migration Disciplines in Daqing Characteristics Soil

摘要

Through static and dynamic adsorption experiments, the Polyacrylamide (PAM) adsorption and migration behavior in two characteristics soils such as chernozem and saline soil in Daqing were studied. The migration of static adsorption of PAM in two different soils and different flow amount of PAM adsorption in the chernozem adsorption column were discussed. Experiments showed that the PAM adsorption equilibrium time in the chernozem soil was longer than in the saline soil and the adsorption amount in the chernozem soil was greater than in the saline soil. PAM was easy to reach saturation when the flow amount was large in the dynamic adsorption experiment. The introduction of inert tracer bromide ion simulated the migration of the PAM through the soil adsorption column in dynamic adsorption experiments, which provided datas for building the numerical model of PAM migration rule in soil.