| 摘要 |
<p>PROBLEM TO BE SOLVED: To aerate a large volume of water in the bottom layer in such a water area as inland sea where the wind and waves are high by this underwater aerator to prevent the generation of red tide and blue tide and to replenish oxygen to the water poor in oxygen. SOLUTION: A cabin 11, wherein an aerator using many units with a bubble jetting nozzle 14 and an orifice 15 set therein is incorporated, is set in the water and connected to a pressure tank 17 placed on the water surface and contg. an air pump 16 through a hose 20, and a compressor 18 is set outside the pressure tank 17 to keep the water surface in the cabin 11 constant.</p> |
