| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide the organic wastewater treatment apparatus of a system constituted so as not only to reduce the production amount of sludge but also to improve the sedimentation properties of sludge. <P>SOLUTION: The organic wastewater treatment apparatus is composed of an organic wastewater supply element 1, a treatment element 2, a sludge return element 3 and a cleaned water discharge element 4. The organic wastewater supply element 1 is connected to the treatment element 2 so as to be capable of distributing and supplying organic wastewater to a plurality of the treatment tanks 2a and 2b of the treatment element 2 and the treatment element 2 has a plurality of the treatment tanks 2a and 2b and a sedimentation tank 2c connected in series from the upstream side to the downstream side. The sludge return element 3 is connected to the sedimentation tank 2c so as to distribute and return the sedimented activated sludge in the sedimentation tank 2c to a plurality of the treatment tanks 2a and 2b while the cleaned water discharge element 4 is constituted so as to discharge and guide cleaned water from the sedimentation tank 2c to perform the distribution supply of organic wastewater and the distribution return of activated sludge with respect to a plurality of the treatment tanks 2a and 2b. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
