| 摘要 |
PROBLEM TO BE SOLVED: To provide a waste water purifier for purifying waste water such as ink waste water, dying waste water and coating waste water using a flocculant. SOLUTION: The purifier comprises flocculation sedimentation tanks 6 and 7 loading waste water 2 with iron ions, and at least any 8 and 9 of magnesium ions, calcium ions or aluminum ions to flocculate to settle a contaminant mixed in the waste water 2 and purifiers 14, 15, 16 and 17 for purifying a supernatant liquid in the flocculation sedimentation tank 6 and 7. The purifier can enhance a flocculation effect, reduce an initial cost and a running cost, and significantly reduce an installation area. COPYRIGHT: (C)2008,JPO&INPIT
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