| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an oxidation ditch that makes an advanced treatment capable of obtaining clean treated water containing no solid simply performable by using an existing facility in an oxidation ditch for biologically treating foul water such as sewage containing organic matter by using activated sludge. <P>SOLUTION: A membrane separation unit 10 is arranged so that the unit 10 is immersed in the final sedimentation basin 3 in this oxidation ditch for biologically treating organic foul water in a reaction tank 2 by using a sludge microbe. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
