| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a means for enlarging an area of gas-water boundary in aeration, a means for restraining mixing of waste water and preventing to carry away waste fats and oils to downstream in aeration and a means for securing an extensive boundary of implantation of aerobic microbes, in aerobic microbial treatment of oils and water mixed waste water. SOLUTION: Air bubbles 5 blasted from a bubbler 2 attached to a bottom plate 1 rise to the surface through narrow openings of bubble dispersing materials 8 with low speed and bubbles are destroyed at the water surface of the narrow openings. The bubble dispersing materials 8 are put in an outside box 7 of worked filter materials to form the boundary having extensive areas.</p> |
