| 摘要 |
PROBLEM TO BE SOLVED: To provide a wastewater treatment apparatus of penetration liquid washing generated in penetration flaw detection inspection, capable of creating wastewater (waste liquid) of the penetration liquid washing to clean water which can be reused, and achieving reuse (recycle) of almost whole amount of the clean water, and a method therefor.SOLUTION: The wastewater treatment apparatus of penetration liquid washing generated in penetration flaw detection inspection is configured so that: first treatment water Y1 treated in a reaction tank 3 comprising a wastewater tank 1 of penetration liquid washing and active carbon 6, is separated at an MF membrane device 8, and is introduced to an active carbon tower, then fifth treatment water Y5 having high density separated from the MF membrane device 8 is introduced to an MF concentrated water tank 15, then fourth treatment water treated at the active carbon tower is introduced to an RO membrane device via a reverse penetration membrane treatment water tank, then clean water created at the RO membrane device can be recycled and discharged, and the fifth treatment water Y5 having high density and introduced to the MF concentrated water tank 15 is introduced to a dewatering machine 23, for reducing volume of sludge.SELECTED DRAWING: Figure 1-1 |
