| 摘要 |
PURPOSE:To reduce energy in water purification by utilizing the fluidizing force due to the density difference between water and air, and reducing the delivery pressure of air. CONSTITUTION:In water purification by aeration, the vicinity of an air ejection port is formed of a double structure, the ejection port is located at a position higher than the inflow port of water, and the fluidizing force due to the density difference between water and air is utilized. Consequently, the delivery pressure of air is decreased because the density is reduced due to the bubbles which are formed in the pipe several minutes after the supply of air is started and the necessary stress is simultaneously reduced. Accordingly, water is purified, and the energy is reduced.
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