| 摘要 |
The present invention relates to a biological and advanced method for sewage treatment using activated sludge. The present invention includes: a flow rate adjustment step of causing sewage to flow into a flow rate storage tank accommodating the activated sludge for the advanced sewage treatment; a solid-liquid separation step of causing the sewage to precipitate by using the activated sludge with the flow rate of the sewage adjusted through the flow rate adjustment step and separating the sewage into solid and liquid in a solid-liquid separation tank; a reaction step of causing the sewage to be exposed to the atmosphere after the solid-liquid separation step and biologically treating the sewage for anaerobic, degassing, and aerobic reactions; a precipitation step of accommodating the sewage denitrified and dephosphorized through the reaction step in a precipitation tank, re-separating the sewage into solid and liquid, and releasing the treated sewage to the outside; and a stirring step of denitrifying and dephosphorizing the sewage subject to the solid-liquid separation through the precipitation step with additional denitrification and dephosphorization tanks and by mixing return sludge precipitating in the precipitation step with the solid activated sludge and performing stirring. |
