TY - JOUR
TI - Phosphorus adsorption/desorption kinetics of bioretention
AU - Mei Ying
AU - Zhu Xiao-Han
AU - Gao Long
AU - Zhou Hang
AU - Xiang Ya-Jun
AU - Liu Fang
JN - Thermal Science
PY - 2020
VL - 24
IS - 4
SP - 2401
EP - 2410
PT - Article
AB - A bioretention medium has considerable influence on the removal of  pollutants, especially phosphorus pollutants. In this paper, the phosphorus  adsorption properties of three bioretention media (sand, iron powder, and  aluminum powder) are studied, and the effects of pH and ionic strength on  the phosphorus adsorption are analyzed. Results show that the phosphorus  adsorption isotherm can be well modeled by the Langmuir equation. The  experimental results show the monolayer adsorption capacity of sand is the  highest, while the iron powder the lowest. The pH of the solution has a  considerable influence on the phosphorus adsorption of sand and iron powder,  but has a minimal effect on aluminum powder.