| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a treatment method of organic wastewater capable of removing phosphorus contained in sludge in organic wastewater by taking phosphorus in the sludge by aerobic microorganisms. <P>SOLUTION: This organic wastewater treatment method, employing an anaerobic tank 2, an aerobic tank 3 and a sedimentation tank 4, comprises return piping 10 for drawing sludge out of the sedimentation tank 4 to return the same to the aerobic tank 3, wherein at least a part of the return piping 10 is constituted of a line mixer 6 with an oxygen supply means 5 installed to the front stage of the line mixer 6. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
