| 摘要 |
<p>PROBLEM TO BE SOLVED: To cause no degradation of the efficiency of aerobic treatment by means of micro-organism even if the clogging due to sludge, etc., and the degrade due to long-term use are generated in micro-organism carriers of a waste water treating device which treats organic waste water. SOLUTION: A plurality of vessels 503 which consist of the micro-organism carriers 505, 506 packed in containers 504 are disposed in multistage manner, the vessels 503 are constituted in such a manner that the surface area S' of the waste water discharge side is smaller than the surface area S of the waste water inlet side and the waste water is introduced to the lower stage vessels 503 even if the clogging is generated and the waste water leaks outside at storage vessels 53. Further, this waste water treating device is constituted in such a manner that the micro-organism carriers are transferred to the lower stage vessels 503 if the micro-organism carriers are degraded, and the organic waste water is introduced to the plurality of vessels which are disposed in multistage manner, is subjected to the aerobic treatment and is exhausted.</p> |
