| 摘要 |
An apparatus for biologically treating a non-point pollutant by using media is provided to excellently remove a dissolved material of inflow water and restrain generation of secondary pollutants by removing organic matters and nitrogen compounds contained in a non-point pollution source by using biofilms attached to media. A grit chamber(1) is formed to remove sand and floating materials of initial stormwater. A reactor(2) has media(3) having biofilms for biological treatment. An air supply line supplies air to a lower part of the reactor. The grit chamber has a roundabout flow discharge port(C) at a front. A charging rate of the media having biofilms is 5-30%(V/V). |
