Scum guard and sewage system with scum guard for reducing activated sludge in inflow for secondary sedimentation

摘要

The plunging wall (7) for inserting in an aeration basin having inflow or outflow, comprises a first plunging wall section and a second plunging wall section, where the first plunging wall portion has a bottom edge passing from the first end of the first plunging wall section and increasing towards top. The second plunging wall portion is connected in a first stumping angle to an inflow side (13) of the first plunging wall section on a second end of the first plunging wall section. The second plunging wall section extends itself after bottom to top position of the increasing lower edge. The plunging wall (7) for inserting in an aeration basin having inflow or outflow, comprises a first plunging wall section and a second plunging wall section, where the first plunging wall portion has a bottom edge passing from the first end of the first plunging wall section and increasing towards top. The second plunging wall portion is connected in a first stumping angle to an inflow side (13) of the first plunging wall section on a second end of the first plunging wall section. The second plunging wall section extends itself after bottom to top position of the increasing lower edge. The plunging wall with the first end of the first plunging wall section is combinable over the total height of the plunging wall at the first end of the first plunging wall section with a first side wall or a first wall section of the aeration basin. The increasing lower edge extends itself over the total length of the first plunging wall section or the increasing lower edge extends itself with exception of areas that serve in the case of a retrofitting for supporting the plunging wall, over the total length of the first plunging wall section. The first plunging wall section forms a stumping angle with the second plunging wall section. An independent claim is included for an aeration basin.