| 摘要 |
<p>The wastewater treatment system (10) according to the present invention includes a plurality of reaction sequences including a first sedimentation tank (12), a reaction tank (14, 30), a final sedimentation tank (16), a first channel (24) which connects the first sedimentation tank and the reaction tank and a second channel (26) which connects the reaction tank and the final sedimentation tank. In one reaction sequence of the plurality of reaction sequences, the reaction tank has a membrane separation tank (36) including a carrier (50), a membrane unit (48), and activated sludge and in which an MLSS concentration of the activated sludge is in a range of 500 mg/L to 7000 mg/L, and wastewater is supplied to the reaction tank via the first channel, and wastewater in a quantity exceeding a treatment capacity of the reaction tank is supplied to the final sedimentation tank via the second channel.</p> |
