| 摘要 |
<p>A waste water treatment plant comprising a biological contactor rotor (1) having a shaft (2) rotatably supported in a waste water tank (10). The shaft of the rotor is supported at each end from below by a cradle of rolling members (6) into which the shaft ends are lowered. The rotor can be turned by a motor (17) or by air from a blower (14).</p> |
