| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To realize uniform aeration effect and washing effect over the entire length of an aeration pipe. <P>SOLUTION: An aeration device comprises an aeration pipe 2 having a plurality of aeration holes 22 for diffusing an infinite number of air bubbles c into a water treatment tank 1where oxygen is supplied to raw water (a) introduced into the tank by the diffused air bubbles c, and the raw water is solid-liquid separated by membrane filters 4 to discharge the treated water b. The aeration pipe 2 is installed below the membrane filters 4 disposed in the water treatment tank 1. An orifice part 32 having pressure loss effect for diffusing the air bubbles c uniformly from the air inlet part 2a to the pipe end part 2b of the aeration pipe 2 is installed in an air supply pipe 3 installed between a blower 31 and the aeration pipe 2 for supplying air to the aeration pipe 2. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
