Phosphorus adsorption characteristics of four substrates in constructed wetland
4种人工湿地填料对磷的吸附特性分析

The phosphorus adsorption characteristics of four substrates(purples soil,river sands,shale, limestone) in constructed wetland were studied by isothermal adsorption experiment,adsorption kinetics experiment, saturated substrates phosphorus desorption experiment.The results showed that the behaviors of phosphorus adsorption to substrates can well be fitted to both Langmuir and Freundlich isothermal adsorption equations. The phosphorus adsorption capacity of four substrates followed that limestone(666.67 mg/k...