| 摘要 |
<p>PURPOSE:To save power and maintenance cost and cut equipment cost so as to contribute toward water purification by aerating water in a water reservior for a close supply system using a nearby existing energy source without the use of a new power source, if water needs to be purified in such a reservior. CONSTITUTION:Ejector nozzles 4-1 to 4-4 aspirate air through an air aspiration pipe and eject a jet stream containing air bubbles and further supply oxygen by feeding a pressurized water to the ejector nozzles 4-1 to 4-4 from a pump 2. Thus a vortex is generated in a storage tank 1 to replace a bottom layer water with a surface layer water and further supply oxygen. Consequently, poisonous gas such as H2S, NH3 is released into an atmosphere from the bottom by the circulating stream and instead, oxygen is supplied to the bottom. Following the above process, an accumulated waste is oxygen-decomposed by microbes to contribute toward an increase in animal planktons and bottom creature. In addition, the oxygen allows the bottom creature or fish to live at the bottom and resultantly a plant chain system to recover its balance. In this way, it is possible to improve the water quality.</p> |
