| 摘要 |
<p>An aerator - dresser of the water treatment plant has body, water sprayer, inlet and outlet branches and settler; according to the invention it is additionally equipped with marble layers disposed under water sprayer on cross-sections thereof at the distance one from another in height, and branches with screen filter disposed on the upper cover or on the upper cover and lateral wall above the water level but under the upper cover for passing air and gases which may be present in water, e.g. hydrogen sulphide.</p> |
