| 摘要 |
<p>1,129,131. Aerating sewage. SIMON CARVES Ltd. 14 Sept., 1965 [25 Sept., 1964], No. 39130/64. Heading C1C. [Also in Division B1] A sewage treatment plant comprises a tank 12 and a plurality of aeration devices 14. Liquid to be treated flows continuously from the valve 202 (Fig. 2, not shown) through the tank 12 and out over outlet weirs (not shown).</p> |
