Stormwater runoff has become an important source of surface water pollution. Bioretention

a lowimpact development measure in urban stormwater management

has been proven to be effective in the removal of pollutants fromstormwater runoff

with appropriate bioretention media. In this study

constructionwasteswere selected as bioretention media to remove heavy metals fromstormwater runoff. Static and dynamic adsorption batch experiments were carried out to investigate the adsorption of heavy metals in simulated stormwater runoff system with construction wastes in different particle sizes. The experimental results show that the pseudo-secondorder kinetic model characterizes the adsorption process and the adsorption equilibriumdata are well described by Freundlich isotherm model. The construction wastes used can remove heavy metals from stormwater runoff effectively

with their average removal rates all more than 90%. The particle size of construction wastes greatly influences the equilibrium time

rate and adsorption capacity for heavy metals.