| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a wastewater treatment apparatus and method which equalize the supply of oxygen to microorganisms in the case of adopting a swirl-type aeration method in a fixed bed reaction tank method to enable sufficient exhibition of the performance of the wastewater treatment apparatus 100. <P>SOLUTION: The installation density of carriers 14 for immobilizing microorganisms (installed in microorganism fixed beds 7, 8, 9) becomes larger from the inside to the outside of a swirl F. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
