| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a biological treatment method of organic wastewater capable of shortening the start-up period for a multistage biological treatment apparatus. <P>SOLUTION: The biological treatment method of the organic wastewater has a start-up step for starting up the biological treatment apparatus having a first biological treatment tank 1 and a second biological treatment tank 2 to which raw water is made to flow in order during the normal operation. At starting up, a second biological treatment tank start-up step for supplying at least a part of the raw water to the second biological treatment tank 2 and starting up the second biological treatment tank 2 is performed, and then, water is made to flow from the first biological treatment tank 1 to the second biological treatment tank 2 in series, and the operation is shifted to the normal operation. <P>COPYRIGHT: (C)2013,JPO&INPIT |
