| 摘要 |
PROBLEM TO BE SOLVED: To improve diffusing effect by generating upflow by diffused air of a diffuser more certainly at a plane central part of an aerobic processing tank.SOLUTION: A cramp F fixes a diffuser E. The diffuser E comprises multiple aeration tubes 6 which directions are same and wicks are differ, and a connecting unit 10 connecting the multiple aeration tubes 6. The cramp F comprises a first guide unit 23 guiding the aeration tubes 6 of the diffuser E to a prescribed position in a cross direction and a second guide unit 21 guiding the connecting unit 10 of the diffuser E to a receiving unit of the cramp F, and the first guide unit 23 and the second guide unit 21 are formed together.SELECTED DRAWING: Figure 2 |
