| 摘要 |
<p>PURPOSE:To activate the bottom of a lake, etc., by sending the water having a high content of dissolved oxygen from a position higher than the water surface. CONSTITUTION:A water intake 4 is provided at a place higher than the surface 1 of a lake by the height H, and a pipe 2 is laid from the place to the lake bottom. The water having a high content of dissolved oxygen is sent to the bottom from the water intake 4. The water is sent into the lake bottom by the water head H, hence the lake bottom is activated, and the energy is reduced.</p> |
