| 摘要 |
<p>A small-scale waste water treatment plant is installed within a single basin which holds a number of aggregate units. These include an aerator (52), a clear water extractor pump (56), a water level indicator, a low-level sludge agitator, and a water sampler (62, 64). The aggregate units are held either all or in part within a common housing (38, 102) which is inserted into and may be withdrawn from the basin.</p> |
