WASTE WATER TREATMENT DEVICE

摘要

PURPOSE:To provide the title device enhanced in treatment capacity and capable of efficiently and stably treating waste water. CONSTITUTION:A waste water treatment device is equipped with a mixing tank 3 mixing waste water containing org. matter with powdery activated carbon to adsorb the org. matter on said powdery activated carbon and an activated carbon storage tank 7 storing a powdery activated carbon slurry to supply the same to the mixing tank 3 by an activated carbon injection pump 8. A hollow yarn membrane module 4 separating powdery activated carbon and treated water is connected to the mixing tank 3. The supply amount of the slurry supplied to the mixing tank 3 is adjusted by controlling the opening degree of a control valve 9 on the basis of the difference between the concn. signals of densitometers 6a, 6b by a control unit 15.