earticle

영어

dissolved solids, organic constituents and metal elements, which are usually adsorbed to particles. Therefore, the objective of this study was to evaluate the treating feasibility of SS and heavy metals in road sediment by filters with the hydrodynamic filter sepa-rator(HDFS) in order to adopt the road runoff treatment. A various type of filter media such as perlite, granular activated carbon, zeolite were used as single or mixed media for hydrodynamic filter separator(HDFS), and to determine the removal efficiency with various surface loading rates. As the results of laboratory test, the overall removal efficiencies of SS were 48% for perlite, 23% for activated carbon, 30% for calcination zeolite filter, respectively. For the case of heavy metals, overall removal efficiencies were 33% for perlite, 28% for activated carbon, 23% for calcination zeolite filter in case of Fe, 41% for perlite, 35% for activated carbon, 25% for calcination zeolite filter in case of Zn, and 39% for perlite, 33% for activated carbon, 31% for calcination zeolite filter in case of Pb, respectively in accordance to the surface loading rates of 200 - 600 m3/m2/day.
Media with the highest removal efficiency was perlite, and next highest was mixed media with perlite and granular activated carbon. Therefore, appropriate media for hydrodynamic filter separator were perlite and perlite mixed with granular activated carbon media to treatment for road storm runoff.