| 摘要 |
<p>PURPOSE:To effectively aerate deep-layer water while inhibiting the promotion of pollution for improving the quality of water, by pumping up water reserved at the deep- layer part of a water-reserving pool to a water tank on a ship by an air-lifting means, and then returning and circulating it to the deep-layer part again. CONSTITUTION:A ship 7 equipped with an aerating water tank 12 is let float on a water-reserving pool and moved to the water surface above deep-layer water 5 to be aerated. The top ends of a pumping-up pipe 13 and a water-returning pipe 14 are lowered to the deep water layer 5 by paying out wires 21, 22 with winches 19, 20. Compressed air formed by a compressor 26 on the ship is blown through a nozzle 25 at the top end of a blowing pipe 23 descending with the descent of the pumping-up pipe 13 into the pumping-up pipe 13. Said compressed air turns into bubbles and ascends in company with the deep-layer water through the pumping-up pipe 13. The deep-layer water is affected by aeration with the air bubbles and aeration after it flows into the aerating water tank 12 on the ship, and then returned to the deep water layer 5 again through the water-returning pipe 14. In this way, the deep-layer water is affected by aeration, the promotion of pollution is inhibited, and the quality of water in the water- reserving pool is improved.</p> |
