| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus and a method for treating waste water, in each of which organic matter treatment and chromaticity reduction can be performed stably in an electrolytic treatment tank even when the amount of the solid matter in the waste water is fluctuated, maintenance management of the electrode or other instruments to be used in the electrolytic treatment tank can be simplified and the amount of the industrial waste to be treated can be reduced effectively.SOLUTION: An apparatus 1 for treating waste water, in which the solid matter-containing waste water is treated electrolytically, includes: a storage tank 4 for storing the solid matter-containing sludge water separated from the waste water; an adjustment part for mixing the solid matter, which is contained in the sludge water stored in the storage tank 4, in the separated water obtained by separating the solid matter from the waste water so that the solid matter concentration of the separated water is adjusted; and an electrolytic treatment tank 6 for electrolytically treating the separated water having the solid matter concentration adjusted by the adjustment part. |
