| 摘要 |
<p>PURPOSE: A device for aeration using water mill supplies oxygen with small energy and mixes water efficiently in aeration tank or lakes. CONSTITUTION: The device is composed of an axis of rotation(2), connecting bar(3), pipe(4),and motor(9). DC electro motion motor(9) which rotating velocity is controlled easily is desirable. A solar cell is desirable as a source of electricity because it is hard to supply electricity at places like lake. The device needs changeability of installing site. The motor(9) is connected to an axis of rotation(2). Several connecting bars(3) are installed in radial shape around the axis. The connecting bar(3) needs to be made in a round shape which reduces friction resistance, but a triangle or tetragon shape is acceptable. Mixing waste water with air accelerates the activity of microorganism.</p> |
