| 摘要 |
<p>PURPOSE: To provide a process for treating wastewater, which is able to perform an advanced treatment of the wastewater without treating sludges for a long period of time by using a septic tank and a sequencing batch reactor, a device therefor. CONSTITUTION: The device comprises a septic tank (100) that treats wastewater anaerobically and a sequencing batch reactor (200) that treats the wastewater supplied from the septic tank aerobically. The septic tank includes a sludge isolation wall (114), a first septic chamber (120) that anaerobically ferments deposited sludges, a second septic chamber (130) that anaerobically digests the wastewater that is flown over the sludge isolation tank and an oil collection chamber (140) that is divided by an oil isolation wall (115) to accumulate the oil contained in the wastewater. The sequencing batch reactor includes a device for agitating and aerating the wastewater (211), a treated water discharge device (212) that discharges purified treated water to the outside after activated sludge is deposited and a remaining sludge return device (213) that returns the remaining sludge to the septic tank.</p> |
