| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the properties of sludge in a direction increasing oxygen supply efficiency and the stability of membrane filtration in a membrane separation activated sludge method. <P>SOLUTION: A soluble organic matter-containing liquid is treated with microorganisms in a treatment tank and the treated liquid is subjected to membrane filtration using an ultrafiltration membrane or a precise filtration membrane to obtain treated water. In this treatment method, at least one chemical agent selected from the group consisting of an antibiotic, an uncoupler and a chelating agent is added to the treatment tank or the liquid flowing in the treatment tank. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
