| 摘要 |
<p>PROBLEM TO BE SOLVED: To outstandingly reduce the weight of an excess sludge simply and economically in a processing method and a device of excess sludge by a biological processing. SOLUTION: An organic waste water is decomposed and processed in an aeration tank 3 and at least one part of a generated sludge is removed out and is thrown into a reactor 5 provided with a submerged membrane 9 or a hollow fiber membrane. An excess sludge is decomposed and processed by a self-oxidation of the sludge in the reactor 5.</p> |
